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Smith SL, Habib MU, Chaplin WJ, Millar B, McWilliams DF, Walsh DA. Central aspects of pain associated with physical activity: results from the Investigating Musculoskeletal Health and Wellbeing cohort. Pain Rep 2025; 10:e1268. [PMID: 40291382 PMCID: PMC12026383 DOI: 10.1097/pr9.0000000000001268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2024] [Revised: 01/31/2025] [Accepted: 02/24/2025] [Indexed: 04/30/2025] Open
Abstract
Background Knee pain reduces activity, while inactivity can increase pain. The central nervous system modulates both pain and activity. The 8-item Central Aspects of Pain (CAP) questionnaire measures self-reported symptoms associated with current and future knee pain severity and psychophysical evidence of central pain sensitivity. The objective was to explore associations between CAP and physical inactivity in people with knee pain. Methods Participants from the Investigating Musculoskeletal Health and Wellbeing cohort who reported their knee as their most troublesome joint with numerical rating scale pain severity ≥1/10 completed questionnaires at baseline and 12 months addressing demographic and clinical characteristics, CAP questionnaire, and physical inactivity (Frail Non-Disabled questionnaire item). Chi-squared, correlations and multivariable logistic regression were performed. Results Seven hundred twenty-two participants provided baseline data and 404 longitudinal data. Higher baseline CAP scores were associated with higher baseline pain severity {OR: 1.25 (95% confidence interval [CI]: 1.02-1.53); P = 0.032} and physical inactivity (OR: 1.18 [95% CI: 1.11-1.25]; P < 0.001). Increasing CAP scores over 12 months were associated with becoming physically inactive (OR: 1.16 [95% CI: 1.01-1.32]; P = 0.032). The effects of CAP on physical inactivity were not fully explained by pain severity nor by any single characteristic of widespread pain distribution, emotional or cognitive factors, sleep disturbance, or fatigue. Conclusion Central aspects of pain questionnaire displays cross-sectional and longitudinal associations with physical inactivity. Central nervous system manifestations of pain appear to link pain with physical activity and may be more important than pain severity.
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Affiliation(s)
- Stephanie Louise Smith
- Pain Centre Versus Arthritis, University of Nottingham, Nottingham, United Kingdom
- Academic Rheumatology, Injury, Recover and Inflammation Science, School of Medicine, University of Nottingham, Nottingham, United Kingdom
- Advanced Pain Discovery Platform, University of Nottingham, Nottingham, United Kingdom
- NIHR Biomedical Research Centre, University of Nottingham, Nottingham, United Kingdom
| | - Muhammad Umar Habib
- Pain Centre Versus Arthritis, University of Nottingham, Nottingham, United Kingdom
- Academic Rheumatology, Injury, Recover and Inflammation Science, School of Medicine, University of Nottingham, Nottingham, United Kingdom
| | - Wendy J. Chaplin
- Pain Centre Versus Arthritis, University of Nottingham, Nottingham, United Kingdom
- Academic Rheumatology, Injury, Recover and Inflammation Science, School of Medicine, University of Nottingham, Nottingham, United Kingdom
- Advanced Pain Discovery Platform, University of Nottingham, Nottingham, United Kingdom
- NIHR Biomedical Research Centre, University of Nottingham, Nottingham, United Kingdom
- School of Health Sciences, University of Nottingham, Nottingham, United Kingdom
| | - Bonnie Millar
- Pain Centre Versus Arthritis, University of Nottingham, Nottingham, United Kingdom
- Academic Rheumatology, Injury, Recover and Inflammation Science, School of Medicine, University of Nottingham, Nottingham, United Kingdom
- NIHR Biomedical Research Centre, University of Nottingham, Nottingham, United Kingdom
| | - Daniel F. McWilliams
- Pain Centre Versus Arthritis, University of Nottingham, Nottingham, United Kingdom
- Academic Rheumatology, Injury, Recover and Inflammation Science, School of Medicine, University of Nottingham, Nottingham, United Kingdom
- Advanced Pain Discovery Platform, University of Nottingham, Nottingham, United Kingdom
- NIHR Biomedical Research Centre, University of Nottingham, Nottingham, United Kingdom
| | - David Andrew Walsh
- Pain Centre Versus Arthritis, University of Nottingham, Nottingham, United Kingdom
- Academic Rheumatology, Injury, Recover and Inflammation Science, School of Medicine, University of Nottingham, Nottingham, United Kingdom
- Advanced Pain Discovery Platform, University of Nottingham, Nottingham, United Kingdom
- NIHR Biomedical Research Centre, University of Nottingham, Nottingham, United Kingdom
- Sherwood Forest Hospitals NHS Foundation Trust, Rheumatology, Mansfield, Nottingham, United Kingdom
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Petersen J, Palic S, Nyboe L, Schuster M, Videbech P, Midtgaard J. Physical activity in the management of borderline personality disorder: A scoping review. Psychiatry Res 2025; 350:116535. [PMID: 40398190 DOI: 10.1016/j.psychres.2025.116535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2025] [Revised: 04/09/2025] [Accepted: 05/04/2025] [Indexed: 05/23/2025]
Abstract
INTRODUCTION Borderline Personality Disorder (BPD) affects 1-2 % of the population and poses significant health challenges. Individuals with BPD face a reduced life expectancy of 14-27 years, primarily due to suicide and cardiovascular-related issues. This scoping review aimed to provide an overview of the existing literature on physical activity (PA) in BPD management, focusing on research characteristics and exploring underlying rationales. METHODS The PubMed, CINAHL, Embase, PsycINFO, Scopus, PEDro and Cochrane databases were searched for both unpublished and published studies from 1980 to February 2025. The search followed the PRISMA-ScR guidelines and the Population, Concept, and Context framework. RESULTS Twenty-one studies met the inclusion criteria, including seven RCTs (four ongoing), five non-randomized controlled trials, two non-controlled intervention studies, one single-case experimental study, and six case studies. The studies included 229 participants, primarily female, and covered six PA modalities: structured exercise, yoga, dance movement therapy, outdoor PA's, sports, and body awareness and psychomotor therapies. Analysis identified seven categories of rationales for incorporating PA: improving patient care, fostering emotional regulation, promoting mental health, regulating maladaptive behaviors, enhancing social skills, protecting physical health, and reclaiming embodiment, with fostering emotional regulation as the most prominent. CONCLUSION This review highlights the promising but fragmented research on PA interventions for BPD, with a primary emphasis on psychological aspects. Notable gaps include limited attention to somatic comorbidities and the lack of consistent outcome measures. Future research should prioritize the development of multidisciplinary interventions to address both psychological and physical factors.
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Affiliation(s)
- Justina Petersen
- Mental Health Center Glostrup, Centre for Applied Research in Mental Health Care (CARMEN), Copenhagen University Hospital - Mental Health Services in the Capital Region of Denmark, Copenhagen, Denmark; Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark.
| | - Sabina Palic
- Mental Health Center Glostrup, Department for Treatment of Borderline Personality Disorder and Self-Harm, Mental Health Services in the Capitol Region of Denmark, Denmark; Danish Institute Against Torture, National Rehabilitation Clinic, Copenhagen, Denmark
| | - Lene Nyboe
- Aarhus University Hospital, Department of Depression and Anxiety, Central Denmark Region Psychiatry, Denmark
| | - Mark Schuster
- Mental Health Center Glostrup, Centre for Applied Research in Mental Health Care (CARMEN), Copenhagen University Hospital - Mental Health Services in the Capital Region of Denmark, Copenhagen, Denmark
| | - Poul Videbech
- Mental Health Center Glostrup, Center for Neuropsychiatric Depression Research (CNDR), Copenhagen University Hospital - Mental Health Services in the Capital Region of Denmark, Denmark; Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Julie Midtgaard
- Mental Health Center Glostrup, Centre for Applied Research in Mental Health Care (CARMEN), Copenhagen University Hospital - Mental Health Services in the Capital Region of Denmark, Copenhagen, Denmark; Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
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Vallance P, Kidgell DJ, Vicenzino B, Malliaras P. Endogenous pain modulation is not different in basketball or volleyball athletes with patellar tendinopathy compared to asymptomatic athletic controls. Musculoskelet Sci Pract 2025; 76:103280. [PMID: 39929089 DOI: 10.1016/j.msksp.2025.103280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2024] [Revised: 02/04/2025] [Accepted: 02/05/2025] [Indexed: 03/05/2025]
Abstract
BACKGROUND Patellar tendinopathy is highly prevalent in basketball and volleyball athletes. Despite pain being the main symptom reported, underlying mechanisms are unclear. OBJECTIVES Our primary aim was to compare endogenous pain inhibition using a conditioned pain modulation protocol in basketball and volleyball athletes with patellar tendinopathy to asymptomatic athletic controls. Our secondary aim was to compare endogenous pain facilitation using a temporal summation protocol. DESIGN Cross-sectional case-control. METHODS Twenty-six athletes and 19 asymptomatic controls participated. We calculated the difference in PPT at the patellar tendon over the most painful site (pain site), the ipsilateral tibialis anterior (regional site), and the contralateral elbow lateral epicondyle (remote site), before and after immersion of the hand (ipsilateral to pain site) in painful cold-water. PPT change was used to quantify endogenous pain inhibition. Participants rated pain on a numerical rating scale (NRS; 0 = no pain to 10 = worst pain imaginable) at five, 20, 60 and 120 s during the cold-water immersion task. Change in NRS from five to 20 s quantified temporal summation. RESULTS Median symptom duration in our patellar tendinopathy group was 39 (IQR 22.5-55.5) months, and 85% experienced symptoms bilaterally. We did not observe alterations in endogenous pain inhibition at any site, or in temporal summation, in athletes with patellar tendinopathy compared to controls (p > 0.05). CONCLUSION Our findings indicate that altered central nervous system function is not a predominate feature contributing to pain in jumping athletes with patellar tendinopathy. Accordingly, clinicians should view pain as being of a local tissue source if targeting this symptom.
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Affiliation(s)
- Patrick Vallance
- Department of Physiotherapy, Podiatry, Prosthetics and Orthotics, School of Allied Health, Human Service and Sport, La Trobe University, Melbourne, Australia; Monash Musculoskeletal Research Unit, Department of Physiotherapy, School of Primary and Allied Health Care, Faculty of Medicine, Nursing and Health Science, Monash University, Melbourne, Australia; Monash Exercise Neuroplasticity Research Unit, Department of Physiotherapy, School of Primary and Allied Health Care, Faculty of Medicine, Nursing and Health Science, Monash University, Melbourne, Australia.
| | - Dawson J Kidgell
- Monash Exercise Neuroplasticity Research Unit, Department of Physiotherapy, School of Primary and Allied Health Care, Faculty of Medicine, Nursing and Health Science, Monash University, Melbourne, Australia
| | - Bill Vicenzino
- The University of Queensland, School of Health and Rehabilitation Sciences, Brisbane, Australia
| | - Peter Malliaras
- Monash Musculoskeletal Research Unit, Department of Physiotherapy, School of Primary and Allied Health Care, Faculty of Medicine, Nursing and Health Science, Monash University, Melbourne, Australia
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Eboreime KO, Hughes JG, Lee R, Luo J. Can Wearable Device Promote Physical Activity and Reduce Pain in People with Chronic Musculoskeletal Conditions? J Clin Med 2025; 14:1003. [PMID: 39941673 PMCID: PMC11818778 DOI: 10.3390/jcm14031003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2024] [Revised: 01/20/2025] [Accepted: 01/22/2025] [Indexed: 02/16/2025] Open
Abstract
Objective: The purpose of this systematic review is to identify and appraise the evidence on the effectiveness of using wearable devices to promote physical activity and reduce pain in people with chronic musculoskeletal pain. Methods: Systematic searches of electronic databases PubMed, CINAHL, and Medline (Ovid) were undertaken for randomised control trials and observational studies of wearable-based interventions in patients with chronic musculoskeletal conditions. Result: Thirteen studies were included in this review. The methodological quality of the included articles was found to vary between moderate and high quality. Studies included patients with osteoarthritis hip/knee (number; n = 5), low back pain (n = 3), rheumatoid arthritis (n = 1), juvenile idiopathic arthritis (n = 1), inflammatory arthritis (n = 1), spondylarthritis (n = 1), and ankylosing spondylitis (n = 1). The intervention group of some of the studies included additional components associated with the use of wearable devices such as step or diet diary, motivational interviewing or counselling, goal setting, and multidimensional and tailored exercise programme interventions delivered in person, remotely, or in a hybrid format. Intervention duration ranged from 1 week to 28 weeks. There were no serious adverse events related to the use of wearables. Overall, evidence from this systematic review shows that wearable technology intervention was effective in increasing physical activity significantly, especially where extra components (counselling, coaching, prescribed physical activity, goal setting, physiotherapist) were used among clinical and non-clinical populations. However, no significant effect was found in pain reduction with the use of wearable devices. Conclusions: It is concluded that the use of wearable technology should be encouraged in patients with chronic musculoskeletal conditions. Additional research is needed, such as increasing the duration of the intervention, which may have an impact on pain.
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Affiliation(s)
- Kereaseen Oluwatobiloba Eboreime
- School of Biomedical Sciences, University of West London, London W5 5RF, UK; (J.G.H.); (J.L.)
- Royal London Hospital for Integrated Medicine, London WC1N 3HR, UK
| | - John G. Hughes
- School of Biomedical Sciences, University of West London, London W5 5RF, UK; (J.G.H.); (J.L.)
- Royal London Hospital for Integrated Medicine, London WC1N 3HR, UK
| | - Raymond Lee
- Faculty of Technology, University of Portsmouth, Portsmouth PO1 2UP, UK;
| | - Jin Luo
- School of Biomedical Sciences, University of West London, London W5 5RF, UK; (J.G.H.); (J.L.)
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Fjeld MK, Årnes AP, Engdahl B, Morseth B, Hopstock LA, Horsch A, Stubhaug A, Strand BH, Ranhoff AH, Matre D, Nielsen CS, Steingrímsdóttir ÓA. The physical activity paradox; exploring the relationship with pain outcomes. The Tromsø Study 2015-2016. Pain 2025; 166:315-327. [PMID: 39226083 DOI: 10.1097/j.pain.0000000000003344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Accepted: 06/09/2024] [Indexed: 09/04/2024]
Abstract
ABSTRACT Paradoxical associations have been observed for leisure-time physical activity (LTPA) and occupational physical activity (OPA) and several health-related outcomes. Typically, higher LTPA is associated with health benefits and high OPA with health hazards. Using data from the Tromsø Study (2015-2016), we assessed how questionnaire-based LTPA and OPA (n = 21,083) and accelerometer-measured physical activity (PA) (n = 6778) relate to pain outcomes. Leisure-time physical activity and OPA were categorized as inactive PA, low PA, and moderate-to-vigorous PA and then aggregated into 9 levels, eg, inactive LTPA/inactive OPA. Accelerometer-measured PA included counts/minute, steps/day, and WHO PA recommendations from 2010 to 2020. Three binary pain outcomes (any pain, any chronic pain, and moderate-to-severe chronic pain) were constructed based on pain location, intensity, duration, and impact on daily activities. By using Poisson regression to estimate absolute and relative associations, we found that high LTPA was associated with lower pain prevalence and vice versa for OPA. Compared to inactive LTPA, prevalence ratio (PR) with 95% confidence intervals was lowest for moderate-to-vigorous LTPA, 0.93 (0.89-0.96) for any pain, 0.88 (0.84-0.93) for any chronic pain, and 0.66 (0.59-0.75) for moderate-to-severe chronic pain. Compared to sedentary OPA, the ratio was highest for moderate-to-vigorous OPA, 1.04 (1.01-1.07) for any pain, 1.06 (1.02-1.10) for any chronic pain, and 1.33 (1.21-1.46) for moderate-to-severe chronic pain. Aggregated LTPA and OPA showed lower outcomes for moderate-to-vigorous LTPA combined with lower levels of OPA. Higher levels of accelerometer-measured PA were associated with less pain. To summarize, we found inverse associations for LTPA and OPA. Benefits from LTPA seem to depend on low levels of OPA.
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Affiliation(s)
- Mats Kirkeby Fjeld
- Division of Mental and Physical Health, Norwegian Institute of Public Health, Oslo, Norway
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | | | - Bo Engdahl
- Division of Mental and Physical Health, Norwegian Institute of Public Health, Oslo, Norway
| | - Bente Morseth
- School of Sport Sciences, UiT The Arctic University of Norway, Tromsø, Norway
| | | | - Alexander Horsch
- Department of Computer Science, UiT The Arctic University of Norway, Tromsø, Norway
| | - Audun Stubhaug
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway
- Department of Pain Management and Research, Division of Emergencies and Critical Care, Oslo University Hospital, Oslo, Norway
| | - Bjørn Heine Strand
- Division of Mental and Physical Health, Norwegian Institute of Public Health, Oslo, Norway
- Norwegian National Advisory Unit on Ageing and Health, Tønsberg, Norway
- Department of Geriatric Medicine, Oslo University Hospital, Oslo, Norway
| | - Anette Hylen Ranhoff
- Division of Mental and Physical Health, Norwegian Institute of Public Health, Oslo, Norway
| | - Dagfinn Matre
- National Institute of Occupational Health, Oslo, Norway
| | - Christopher Sivert Nielsen
- Division of Mental and Physical Health, Norwegian Institute of Public Health, Oslo, Norway
- Department of Pain Management and Research, Division of Emergencies and Critical Care, Oslo University Hospital, Oslo, Norway
| | - Ólöf Anna Steingrímsdóttir
- Division of Mental and Physical Health, Norwegian Institute of Public Health, Oslo, Norway
- Department of Research, Oral Health Centre of Expertise in Eastern Norway, Oslo, Norway
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Tingvold M, Notthoff N, Borgmann L, Kornadt AE. Momentary physical activity, subjective age, and the moderating role of pain. Eur J Ageing 2025; 22:1. [PMID: 39821492 PMCID: PMC11739440 DOI: 10.1007/s10433-024-00836-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/16/2024] [Indexed: 01/19/2025] Open
Abstract
Subjective age, that is felt age compared to chronological age, is an important predictor of health and well-being in later life. It can fluctuate from day to day and from one moment to another. Previous cross-sectional and macro-longitudinal studies have shown that feeling younger is related to physical fitness and exercise. Yet, there is limited knowledge on the effects of physical activity on subjective age in daily life and moderators of this association. We thus aim to investigate the association of momentary physical activity with momentary subjective age, expecting that more activity is related to feeling younger. We further expect that concurrent pain experience attenuates this relationship. N = 54 participants aged 50-62 years (Mage = 56.1 years, 75% female) wore chest-sensors measuring their physical activity (step count, movement acceleration) for one week and reported on their subjective age five times per day. Multilevel regression analyses revealed between and within-person variation in momentary subjective age (ICC = 0.74), pain (ICC = 0.63) and physical activity (ICC Moac30 = 0.078, steps30 = 0.053). Pain emerged as a consistent predictor of momentary subjective age (b = 4.64, p = 0.000), whereas results were mixed for the physical activity measures. No significant moderating effect of pain was observed on the relationship between physical activity and subjective age. Our study shows the importance of pain experiences for momentary subjective age, whereas the role of momentary physical activity needs further exploration.
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Affiliation(s)
- Maiken Tingvold
- Department of Behavioral and Cognitive Sciences, Faculty of Humanities, Education and Social Sciences, University of Luxembourg, Campus Belval, 11, Porte des Sciences, L-4366, Esch-sur-Alzette, Luxembourg.
| | - Nanna Notthoff
- Faculty of Sport Science, Leipzig University, Leipzig, Germany
| | - Lisa Borgmann
- Department of Behavioral and Cognitive Sciences, Faculty of Humanities, Education and Social Sciences, University of Luxembourg, Campus Belval, 11, Porte des Sciences, L-4366, Esch-sur-Alzette, Luxembourg
| | - Anna E Kornadt
- Department of Behavioral and Cognitive Sciences, Faculty of Humanities, Education and Social Sciences, University of Luxembourg, Campus Belval, 11, Porte des Sciences, L-4366, Esch-sur-Alzette, Luxembourg
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Liu B, Yang C, Mazumdar M, Aldridge M, Morrison RS, Li L. Do Physical Activities Prevent the Occurrence of Bothersome Pain? J Appl Gerontol 2025:7334648251313883. [PMID: 39797781 DOI: 10.1177/07334648251313883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2025] Open
Abstract
We examined the associations between physical activity (PA)-measured through self-reported walking and vigorous activities-and pain occurrence (self-reported bothersome pain or frequent pain medication use), and persistent pain (pain occurring for two consecutive years). This analysis used a large, nationally representative sample of 2279 older adults from the National Health and Aging Trends Study of 2015-2018, and applied generalized estimating equation regression with propensity score weighting. Approximately 70% and 50% of the participants reported walking and vigorous activities respectively at baseline. The cumulative incidence over the 3-year follow-up time was approximately 60%, and was similar across PA groups. The risk of pain occurrence or persistent pain did not differ by walking or by vigorous activity status (relative risks ranged from 0.97 to 1.20, and the 95% CIs included one). While pain occurrence was common among older adults, our analysis did not find it to be associated with PA.
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Affiliation(s)
- Bian Liu
- Department of Population Health Science and Policy, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Institute for Translational Epidemiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Chen Yang
- Department of Population Health Science and Policy, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Institute for Healthcare Delivery Science, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Madhu Mazumdar
- Department of Population Health Science and Policy, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Institute for Healthcare Delivery Science, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Melissa Aldridge
- Brookdale Department of Geriatrics and Palliative Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - R Sean Morrison
- Brookdale Department of Geriatrics and Palliative Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Lihua Li
- Department of Population Health Science and Policy, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Institute for Healthcare Delivery Science, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Brookdale Department of Geriatrics and Palliative Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA
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Van Oosterwijck S, Meeus M, van Der Wekken J, Dhondt E, Billens A, Van Oosterwijck J. Physical Activity Is Predictive of Conditioned Pain Modulation in Healthy Individuals: A Cross-Sectional Study. THE JOURNAL OF PAIN 2024; 25:104639. [PMID: 39029881 DOI: 10.1016/j.jpain.2024.104639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 07/04/2024] [Accepted: 07/14/2024] [Indexed: 07/21/2024]
Abstract
Even in healthy populations, conditioned pain modulation (CPM) magnitude varies. This may be accounted for by (non-)modifiable factors, including physical activity (PA). Yet, little research has thoroughly examined PA and its relation with CPM magnitude in a representative sample. Therefore, the present study investigated the predictive effect of PA on CPM magnitude in 105 healthy adults. PA was assessed during 7 consecutive days by self-report using the International Physical Activity Questionnaire and by monitor-based accelerometry. CPM was examined using a heterotopic noxious-conditioning stimulation protocol during which the effect of a hot water-conditioning stimulus on pressure pain thresholds was evaluated. Comparative, correlation, and hierarchical linear regression analyses were performed. Report-based walking predicts 4.8% of variance in pain-modulatory capacity, moderate PA predicts 10.2% of variance in pain-modulatory capacity, and report-based time spent on total PA predicts 7.0% of variance in pain-modulatory capacity. More metabolic equivalent-minutes/week spent on total PA, including walking and moderate PA, is associated with greater pain-modulatory capacity. The findings of this study add to the limited evidence on the predictive effect of PA on CPM. It urges to consider PA a confounding factor when examining CPM. The current study provides evidence that a physically active lifestyle benefits endogenous pain modulation in healthy adults. Given its potential, walking and moderate-intensity PA might be achievable treatment strategies for pain patients known to have impaired CPM. PERSPECTIVE: The results of this article show that a physically active lifestyle, including larger amounts of walking and moderate activity, predicts greater pain-modulatory capacity. TRIAL REGISTRATION: This study has not been preregistered.
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Affiliation(s)
- Sophie Van Oosterwijck
- Spine, Head and Pain Research Unit Ghent, Department of Rehabilitation Sciences, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium; Pain in Motion International Research Group (www.paininmotion.be); Research Foundation - Flanders (FWO), Brussels, Belgium
| | - Mira Meeus
- Spine, Head and Pain Research Unit Ghent, Department of Rehabilitation Sciences, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium; Pain in Motion International Research Group (www.paininmotion.be); Department of Rehabilitation Sciences and Physiotherapy, Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium
| | - Jacob van Der Wekken
- Department of Rehabilitation Sciences and Physiotherapy, Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium
| | - Evy Dhondt
- Spine, Head and Pain Research Unit Ghent, Department of Rehabilitation Sciences, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium; Pain in Motion International Research Group (www.paininmotion.be)
| | - Amber Billens
- Spine, Head and Pain Research Unit Ghent, Department of Rehabilitation Sciences, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium; Pain in Motion International Research Group (www.paininmotion.be)
| | - Jessica Van Oosterwijck
- Spine, Head and Pain Research Unit Ghent, Department of Rehabilitation Sciences, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium; Pain in Motion International Research Group (www.paininmotion.be); Research Foundation - Flanders (FWO), Brussels, Belgium; Department of Rehabilitation Sciences and Physiotherapy, Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium.
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Michaeli Izak E, Kodesh E, Weissman-Fogel I. Vagal tone, pain sensitivity and exercise-induced hypoalgesia: The effect of physical activity level. Eur J Pain 2024; 28:1524-1535. [PMID: 38606718 DOI: 10.1002/ejp.2275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 03/29/2024] [Accepted: 04/06/2024] [Indexed: 04/13/2024]
Abstract
BACKGROUND Vagal activity has analgesic effects that are attributed to exercise-induced hypoalgesia (EIH). High vagal tone and low pain sensitivity are reported in individuals who routinely exercise yet, their association is unclear. Furthermore, it is unknown if the heightened vagal tone following high physical activity predicts and intensifies EIH. METHODS Fifty-one healthy participants (27 low-moderately physically active; 27 females) underwent a resting-state electrocardiogram followed by heart rate variability analysis. Pain measurements, including pressure (PPT) and heat (HPT) pain thresholds, ratings of tonic heat pain (THP) and conditioned pain modulation (CPM) paradigm, were conducted pre- and post-exercise on a cycle ergometer. RESULTS The highly active group demonstrated higher vagal tone compared to the low-moderately active (root mean square of successive differences between R-R intervals: 63.96.92 vs. 34.78 ms, p = 0.018; percentage of successive R-R intervals that exceed 50 ms: 24.41 vs. 11.52%, p = 0.012). Based on repeated-measure ANOVA, the highly active group showed higher PPT at pre-exercise, compared to the low-moderately active group (382 kPa vs. 327 kPa; p = 0.007). Post-exercise, both groups demonstrated EIH, increased HPT (p = 0.013) and decreased THP ratings (p < 0.001). Linear regression revealed that only in the low-moderately active group, higher vagal tone was associated with more efficient pre-exercise CPM and a greater reduction in THP ratings post-exercise (p ≤ 0.01). CONCLUSIONS Highly active individuals demonstrate greater vagal tone and lower pain sensitivity but no greater EIH. Vagal tone moderates pain inhibition efficiency and EIH only in low-moderately active individuals. These findings suggest that physical activity level moderates the vagal-pain association via the endogenous analgesia system. SIGNIFICANCE Highly physically active individuals exhibit greater vagal tone and reduced sensitivity to experimental pain, yet they do not benefit more from exercise-induced hypoalgesia (EIH) compared to low-moderately active individuals. Moreover, low-moderately active individuals with greater vagal tone exhibited more efficient endogenous pain inhibition and greater EIH, suggestive of the moderation effect of physical activity level on vagal-pain associations.
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Affiliation(s)
- Ela Michaeli Izak
- Physical Therapy Department, Faculty of Social Welfare and Health Sciences, University of Haifa, Haifa, Israel
| | - Einat Kodesh
- Physical Therapy Department, Faculty of Social Welfare and Health Sciences, University of Haifa, Haifa, Israel
| | - Irit Weissman-Fogel
- Physical Therapy Department, Faculty of Social Welfare and Health Sciences, University of Haifa, Haifa, Israel
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Bilika P, Kalamatas-Mavrikas P, Vasilis N, Strimpakos N, Kapreli E. Reliability of Pressure Pain Threshold (PPT) and Conditioned Pain Modulation (CPM) in Participants with and without Chronic Shoulder Pain. Healthcare (Basel) 2024; 12:1734. [PMID: 39273758 PMCID: PMC11395602 DOI: 10.3390/healthcare12171734] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2024] [Revised: 08/28/2024] [Accepted: 08/30/2024] [Indexed: 09/15/2024] Open
Abstract
The objectives of this study were to estimate the intra-rater and inter-rater reliability of the Pressure Pain Threshold (PPT) and Conditioned Pain Modulation (CPM) in healthy participants and patients with chronic shoulder pain. Additionally, the Standard Error of Measurement (SEM) and Smallest Detectable Change (SDC) were calculated. Thirty-one healthy volunteers and twenty patients with chronic shoulder pain were assessed using the PPT and CPM by two raters, with a 24 h interval between sessions. Excellent intra-rater reliability was demonstrated for PPT, with similar SEM and SDC when assessed by the same rater. The inter-rater reliability for PPTs in patients was moderate to good (ICC = 0.59-0.89) with higher SEM (73.83-121.98 kPa) and SDC (61.58-97.59) values than the asymptomatic group (ICC = 0.92-0.96, SEM = 49.61-103.12 kPa, SDC = 42.01-56.30) respectively. CPM's intra-rater reliability was good (ICC = 0.82) in the patients and moderate (ICC = 0.67) in the asymptomatic group, while inter-rater reliability was low for the asymptomatic group (ICC = 0.37) and extremely low (ICC = 0.074) for the patients, with comparable SEM and SDC outcomes in both groups. PPT and CPM measurements are highly reliable when conducted by the same rater on the same day. Patients had lower inter-rater PPT reliability but better intra-rater CPM reliability. Clinicians need to be mindful of potential variability when interpreting these test results.
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Affiliation(s)
- Paraskevi Bilika
- Clinical Exercise Physiology & Rehabilitation Research Laboratory, Physiotherapy Department, Faculty of Health Sciences, University of Thessaly, 351 32 Lamia, Greece
| | - Panagiotis Kalamatas-Mavrikas
- Clinical Exercise Physiology & Rehabilitation Research Laboratory, Physiotherapy Department, Faculty of Health Sciences, University of Thessaly, 351 32 Lamia, Greece
| | - Nikolaos Vasilis
- Clinical Exercise Physiology & Rehabilitation Research Laboratory, Physiotherapy Department, Faculty of Health Sciences, University of Thessaly, 351 32 Lamia, Greece
- Go Physio Laboratory, Sports Medicine & Rehabilitation Centre, 106 75 Athens, Greece
| | - Nikolaos Strimpakos
- Health Assessment and Quality of Life Research Laboratory, Physiotherapy Department, Faculty of Health Sciences, University of Thessaly, 351 32 Lamia, Greece
- Division of Musculoskeletal & Dermatological Sciences, Honorary Research Associate, University of Manchester, Manchester M13 9PL, UK
| | - Eleni Kapreli
- Clinical Exercise Physiology & Rehabilitation Research Laboratory, Physiotherapy Department, Faculty of Health Sciences, University of Thessaly, 351 32 Lamia, Greece
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Lee S, Neogi T, McGinley B, Wang N, Frey Law L, Torabian KA, Aoyagi K, Stefanik JJ, Carlesso LC, Hausdorff JM, Gazit E, Segal NA, Lewis CE, Nevitt MC, Kumar D. Associations of pain sensitivity and conditioned pain modulation with physical activity: findings from the Multicenter Osteoarthritis Study (MOST). Osteoarthritis Cartilage 2024; 32:982-989. [PMID: 38763431 PMCID: PMC11254545 DOI: 10.1016/j.joca.2024.04.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 04/08/2024] [Accepted: 04/10/2024] [Indexed: 05/21/2024]
Abstract
OBJECTIVE Individuals with chronic pain due to knee osteoarthritis (OA) are insufficiently physically active, and alterations of facilitatory and inhibitory nociceptive signaling are common in this population. Our objective was to examine the association of these alterations in nociceptive signaling with objective accelerometer-based measures of physical activity in a large observational cohort. DESIGN We used data from the Multicenter Osteoarthritis Study. Measures of peripheral and central pain sensitivity included pressure pain threshold at the knee and mechanical temporal summation at the wrist, respectively. The presence of descending pain inhibition was assessed by conditioned pain modulation (CPM). Physical activity was quantitatively assessed over 7 days using a lower back-worn activity monitor. Summary metrics included steps/day, activity intensity, and sedentary time. Linear regression analyses were used to evaluate the association of pain sensitivity and the presence of descending pain inhibition with physical activity measures. RESULTS Data from 1873 participants was analyzed (55.9% female, age = 62.8 ± 10.0 years). People having greater peripheral and central sensitivity showed lower step counts. CPM was not significantly related to any of the physical activity measures, and none of the exposures were significantly related to sedentary time. CONCLUSIONS In this cohort, greater peripheral and central sensitivity were associated with reduced levels of objectively-assessed daily step counts. Further research may investigate ways to modify or treat heightened pain sensitivity as a means to increase physical activity in older adults with knee OA.
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Affiliation(s)
- Soyoung Lee
- Department of Physical Therapy, Boston University, Boston, MA, USA.
| | - Tuhina Neogi
- Division of Rheumatology, Boston University Chobanian & Avedisian School of Medicine, Boston, MA, USA.
| | - Brooke McGinley
- School of Public Health, Boston University, Boston, MA, USA.
| | - Na Wang
- School of Public Health, Boston University, Boston, MA, USA.
| | - Laura Frey Law
- Physical Therapy & Rehabilitation Science, University of Iowa, Iowa City, IA, USA.
| | - Kaveh A Torabian
- Department of Physical Therapy, Boston University, Boston, MA, USA.
| | - Kosaku Aoyagi
- Division of Rheumatology, Boston University Chobanian & Avedisian School of Medicine, Boston, MA, USA.
| | - Joshua J Stefanik
- Division of Rheumatology, Boston University Chobanian & Avedisian School of Medicine, Boston, MA, USA; Department of Physical Therapy, Northeastern University, Boston, MA, USA.
| | - Lisa C Carlesso
- School of Rehabilitation Science, McMaster University, Hamilton, ON, Canada.
| | - Jeffrey M Hausdorff
- Tel Aviv Sourasky Medical Center, Tel Aviv, Israel; Rush University Medical Center, Chicago, IL, USA.
| | - Eran Gazit
- Tel Aviv Sourasky Medical Center, Tel Aviv, Israel.
| | - Neil A Segal
- Department of Rehabilitation Medicine, University of Kansas, Kansas City, KS, USA.
| | - Cora E Lewis
- Department of Epidemiology, University of Alabama at Birmingham, Birmingham, AL, USA.
| | - Michael C Nevitt
- Department of Epidemiology and Biostatistics, University of California, San Francisco, CA, USA.
| | - Deepak Kumar
- Department of Physical Therapy, Boston University, Boston, MA, USA; Division of Rheumatology, Boston University Chobanian & Avedisian School of Medicine, Boston, MA, USA.
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12
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Knox PJ, Simon CB, Hicks GE. Preliminary Characterization of Age and Chronic Low Back Pain Effects on Multimodal Pain Sensitivity: A Comparison Study in Older Adults with and Without Chronic Low Back Pain. THE JOURNAL OF PAIN 2024; 25:104509. [PMID: 38484855 PMCID: PMC11283989 DOI: 10.1016/j.jpain.2024.03.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 02/20/2024] [Accepted: 03/08/2024] [Indexed: 04/29/2024]
Abstract
Though pain sensitivity impairments contribute to chronic pain in younger adults, it is unclear if pain hypersensitivity manifests with aging and is heightened in the geriatric chronic low back pain population. The cross-sectional study preliminarily addressed this gap by measuring pain sensitivity in older adults with chronic low back pain (n = 25) as well as pain-free sex-matched older (n = 25) and younger adults (n = 25). Pain sensitivity was quantified by 8 distinct measures that were subdivided as static (ie, pressure pain thresholds, heat pain thresholds, fixed mechanical pain, and fixed cold pain) and dynamic pain sensitivity (ie, mechanical temporal summation, thermal ramp and hold, heat pain aftersensations, and conditioned pain modulation). Test-retest reliability values for pain sensitivity ranged from moderate to excellent (intraclass correlation coefficients ≥ .500; p's < .05). The main effect for the group was significant (partial η2 = .413, P < .001), revealing between-group differences in pain sensitivity on 5 out of 8 tests (p's ≤ .043). Predominantly, both older adult groups demonstrated increased pain facilitation and decreased pain inhibition during dynamic pain sensitivity testing compared to pain-free younger adults (p's ≤ .044). Despite qualitative differences, static and dynamic pain sensitivity responses were statistically similar between older adults with and without chronic LBP (p's > .05). Findings suggest pain sensitivity can be reliably measured in older adults and that pain hypersensitivity develops with chronological aging, providing partial support for the theory that pain hypersensitivity may impact geriatric chronic pain populations. Further study is needed to more definitively parse out whether pain hypersensitivity is comparatively heightened in older adults with chronic LBP beyond the influence of chronological aging. PERSPECTIVE: This article establishes that surrogate measures of centrally mediated pain sensitization are heightened with aging. Impaired endogenous pain modulation may influence chronic pain development, maintenance, treatment efficacy, and/or ensuing disability, necessitating research to comprehensively characterize how pain hypersensitivity contributes to geriatric chronic pain conditions.
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Affiliation(s)
- Patrick J. Knox
- Department of Physical Therapy, University of Delaware, Newark, DE
| | - Corey B. Simon
- Department of Orthopaedic Surgery, Physical Therapy Division, Duke University, Durham, NC
| | - Gregory E. Hicks
- Department of Physical Therapy, University of Delaware, Newark, DE
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13
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Arribas-Romano A, Fernández-Carnero J, Rodríguez-Lagos L, Molina-Álvarez M, Zabala-Zambrano J, Lezaun-Hernández L, Contreras-Padilla L, Mercado F. CPM-Related Mechanisms Could Play a Key Role in the Effects on Pain Sensitivity Induced by Manual Therapy: Three Crossover Trials Investigating the Effects of Manual Pressure. J Clin Med 2024; 13:3648. [PMID: 38999214 PMCID: PMC11242484 DOI: 10.3390/jcm13133648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Revised: 06/15/2024] [Accepted: 06/19/2024] [Indexed: 07/14/2024] Open
Abstract
Objective: The aim of this study is to assess whether pain-inducing manual pressure (PIMP) leads to effects on pressure pain threshold (PPT) mediated by conditioned pain modulation (CPM) and whether these effects are influenced by the intensity and repetition of the stimulus. Additionally, the influence of psychological factors and physical activity on the response to PIMP was explored. Methods: A total of 72 pain-free students were randomly assigned to three crossover trials. Trial 1 compared the effects of PIMP with the cold pressor task and pain-inducing electrostimulation. Trial 2 compared the effects of manual pressure that elicited moderate pain, mild pain, and no pain. Trial 3 compared a single PIMP stimulation with four stimuli applied at the same site or at different sites. Results: PIMP produced a lower increase in PPT than cold pressor task and no difference with electrostimulation. Manual pressure that caused moderate pain led to a greater increase in PPT compared to mild pain and pain-free application. Repetition of PIMP stimulus, whether at the same or different sites, did not significantly increase PPT compared to a single stimulation. No association with psychological factors or physical activity was found. Conclusions: PIMP produces an increase in PPT, suggesting the involvement of CPM-related mechanisms.
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Affiliation(s)
- Alberto Arribas-Romano
- Escuela Internacional de Doctorado, Department of Physical Therapy, Occupational Therapy, Rehabilitation and Physical Medicine, Universidad Rey Juan Carlos, 28933 Madrid, Spain; (A.A.-R.); (L.R.-L.)
- Cognitive Neuroscience, Pain and Rehabilitation Research Group (NECODOR), Faculty of Health Sciences, Rey Juan Carlos University, 28922 Madrid, Spain; (M.M.-Á.); (F.M.)
- Department of Physical Therapy, Occupational Therapy, Rehabilitation and Physical Medicine, Rey Juan Carlos University, 28922 Madrid, Spain
| | - Josué Fernández-Carnero
- Cognitive Neuroscience, Pain and Rehabilitation Research Group (NECODOR), Faculty of Health Sciences, Rey Juan Carlos University, 28922 Madrid, Spain; (M.M.-Á.); (F.M.)
- Department of Physical Therapy, Occupational Therapy, Rehabilitation and Physical Medicine, Rey Juan Carlos University, 28922 Madrid, Spain
- Motion in Brains Research Group, Institute of Neuroscience and Movement Sciences (INCIMOV), Centro Superior de Estudios Universitarios La Salle, Universidad Autonoma de Madrid, 28049 Madrid, Spain; (J.Z.-Z.); (L.L.-H.)
- La Paz Hospital Institute for Health Research, IdiPAZ, 28029 Madrid, Spain
| | - Leonardo Rodríguez-Lagos
- Escuela Internacional de Doctorado, Department of Physical Therapy, Occupational Therapy, Rehabilitation and Physical Medicine, Universidad Rey Juan Carlos, 28933 Madrid, Spain; (A.A.-R.); (L.R.-L.)
- Cognitive Neuroscience, Pain and Rehabilitation Research Group (NECODOR), Faculty of Health Sciences, Rey Juan Carlos University, 28922 Madrid, Spain; (M.M.-Á.); (F.M.)
| | - Miguel Molina-Álvarez
- Cognitive Neuroscience, Pain and Rehabilitation Research Group (NECODOR), Faculty of Health Sciences, Rey Juan Carlos University, 28922 Madrid, Spain; (M.M.-Á.); (F.M.)
- Area of Pharmacology, Nutrition and Bromatology, Department of Basic Health Sciences, Rey Juan Carlos University, Unidad Asociada I+D+i Instituto de Química Médica (IQM) CSIC-URJC, 28922 Alcorcón, Spain
| | - Jesús Zabala-Zambrano
- Motion in Brains Research Group, Institute of Neuroscience and Movement Sciences (INCIMOV), Centro Superior de Estudios Universitarios La Salle, Universidad Autonoma de Madrid, 28049 Madrid, Spain; (J.Z.-Z.); (L.L.-H.)
- Advance Rehabilitation Center Sanitas, 28046 Madrid, Spain
| | - Lucas Lezaun-Hernández
- Motion in Brains Research Group, Institute of Neuroscience and Movement Sciences (INCIMOV), Centro Superior de Estudios Universitarios La Salle, Universidad Autonoma de Madrid, 28049 Madrid, Spain; (J.Z.-Z.); (L.L.-H.)
- Edurne Esquide Fisioterapia, 31200 Estella, Spain
| | - Lucía Contreras-Padilla
- iCentro Fix You, 28009 Madrid, Spain;
- School of Physiotherapy ONCE, Universidad Autónoma de Madrid, 28022 Madrid, Spain
| | - Francisco Mercado
- Cognitive Neuroscience, Pain and Rehabilitation Research Group (NECODOR), Faculty of Health Sciences, Rey Juan Carlos University, 28922 Madrid, Spain; (M.M.-Á.); (F.M.)
- Department of Psychology, Faculty of Health Sciences, Universidad Rey Juan Carlos, 28922 Madrid, Spain
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14
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do Espírito-Santo RF, Margerison SM, Zhang Y, Pak J, Ro JY, Da Silva JT. Age- and Sex-Dependent Effects of Moderate Exercise on Endogenous Pain Inhibition in Rats. Biomedicines 2024; 12:1122. [PMID: 38791084 PMCID: PMC11117727 DOI: 10.3390/biomedicines12051122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Revised: 04/26/2024] [Accepted: 05/15/2024] [Indexed: 05/26/2024] Open
Abstract
Diffuse noxious inhibitory controls (DNICs), or the pain inhibits pain phenomenon, refer to reduced pain-like behaviors that are displayed following a noxious conditioning stimulus located far from the test stimulus and have also been referred to as "descending control of nociception" when measured in awake-behaving animals. In this study, we sought to determine the impact of moderate long-term exercise on the DCN response and determine if this effect differed across age and sex. After a six-week exercise program consisting of 30 min of moderate treadmill running 5 days a week, the animals' forepaws were injected with capsaicin, and DCN responses were assessed using thermal withdrawal latencies of the hind paw. Young, exercised male and female rats displayed prolonged DCN responses relative to their sedentary counterparts, with the young exercised male group displaying longer-lasting DCN facilitation than the young exercised females. Exercise did not impact DCN responses in either male or female aged rats. Additionally, the serum testosterone levels did not change following exercise in any group. Importantly, the levels of corticosterone did not change following the exercise program, indicating that changes in the DCN response are not due to stress-induced analgesia. Our findings suggest that moderate exercise can facilitate the DCN response in young animals, even when this exercise does not change the levels of serum testosterone.
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Affiliation(s)
- Renan F. do Espírito-Santo
- Department of Neural and Pain Sciences, University of Maryland School of Dentistry, Baltimore, MD 21201, USA; (R.F.d.E.-S.); (S.M.M.); (Y.Z.); (J.P.); (J.Y.R.)
| | - Sarah M. Margerison
- Department of Neural and Pain Sciences, University of Maryland School of Dentistry, Baltimore, MD 21201, USA; (R.F.d.E.-S.); (S.M.M.); (Y.Z.); (J.P.); (J.Y.R.)
- Department of Physical Therapy and Rehabilitation Science, University of Maryland School of Medicine, Baltimore, MD 21201, USA
| | - Youping Zhang
- Department of Neural and Pain Sciences, University of Maryland School of Dentistry, Baltimore, MD 21201, USA; (R.F.d.E.-S.); (S.M.M.); (Y.Z.); (J.P.); (J.Y.R.)
| | - Joshua Pak
- Department of Neural and Pain Sciences, University of Maryland School of Dentistry, Baltimore, MD 21201, USA; (R.F.d.E.-S.); (S.M.M.); (Y.Z.); (J.P.); (J.Y.R.)
| | - Jin Y. Ro
- Department of Neural and Pain Sciences, University of Maryland School of Dentistry, Baltimore, MD 21201, USA; (R.F.d.E.-S.); (S.M.M.); (Y.Z.); (J.P.); (J.Y.R.)
| | - Joyce T. Da Silva
- Department of Neural and Pain Sciences, University of Maryland School of Dentistry, Baltimore, MD 21201, USA; (R.F.d.E.-S.); (S.M.M.); (Y.Z.); (J.P.); (J.Y.R.)
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15
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Rojas-Galleguillos F, Clark-Hormazábal C, Méndez-Fuentes E, Guede-Rojas F, Mendoza C, Riveros Valdés A, Carvajal-Parodi C. Exercise-induced hypoalgesia in chronic neck pain: A narrative review. SPORTS MEDICINE AND HEALTH SCIENCE 2024; 6:37-47. [PMID: 38463669 PMCID: PMC10918364 DOI: 10.1016/j.smhs.2023.09.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Revised: 09/18/2023] [Accepted: 09/27/2023] [Indexed: 03/12/2024] Open
Abstract
Chronic neck pain (CNP) is a worldwide health problem with several risk factors. One of the most widely used treatments for managing this condition is therapeutic exercise, which could generate a response called exercise-induced hypoalgesia (EIH). There is no consensus on the best exercise modality to induce hypoalgesia. Therefore, this review aims to analyze and synthesize the state-of-the-art about the hypoalgesic effect of exercise in subjects with CNP. We included articles on EIH and CNP in patients older than 18 years, with pain for more than three months, where the EIH response was measured. Articles that studied CNP associated with comorbidities or measured the response to treatments other than exercise were excluded. The studies reviewed reported variable results. Exercise in healthy subjects has been shown to reduce indicators of pain sensitivity; however, in people with chronic pain, the response is variable. Some investigations reported adverse effects with increased pain intensity and decreased pain sensitivity, others found no clinical response, and some even reported EIH with decreased pain and increased sensitivity. EIH is an identifiable, stimulable, and helpful therapeutic response in people with pain. More research is still needed on subjects with CNP to clarify the protocols and therapeutic variables that facilitate the EIH phenomenon. In addition, it is necessary to deepen the knowledge of the intrinsic and extrinsic factors that influence EIH in people with CNP.
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Affiliation(s)
- Fernando Rojas-Galleguillos
- Universidad San Sebastián, Programa Magíster en Kinesiología Musculoesquelética, Lientur #1457, Concepción, Chile
| | - Cecilia Clark-Hormazábal
- Universidad San Sebastián, Programa Magíster en Kinesiología Musculoesquelética, Lientur #1457, Concepción, Chile
| | - Eduardo Méndez-Fuentes
- Universidad San Sebastián, Programa Magíster en Kinesiología Musculoesquelética, Lientur #1457, Concepción, Chile
| | - Francisco Guede-Rojas
- Exercise and Rehabilitation Sciences Laboratory, School of Physical Therapy, Faculty of Rehabilitation Sciences, Universidad Andres Bello, Santiago, 7591538, Chile
| | - Cristhian Mendoza
- Universidad San Sebastián, Laboratorio de Neurobiologí, Facultad de Odontología y Ciencias de la Rehabilitación, Lientur #1457, Concepción, Chile
| | - Andrés Riveros Valdés
- Universidad San Sebastián, Departamento de Ciencias Morfológicas, Facultad de Medicina y Ciencia, Lientur #1457, Concepción, Chile
| | - Claudio Carvajal-Parodi
- Universidad San Sebastián, Escuela de Kinesiología, Facultad de Odontología y Ciencias de la Rehabilitación, Lientur #1457, Concepción, Chile
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Quadros Santos Rocha J, Pereira Vieira Y, Lucia Caputo E, Manjourany Silva Duro S, de Oliveira Saes M. Association between physical activity status and musculoskeletal pain in individuals infected with SARS-CoV-2: Sulcovid-19 survey. Musculoskelet Sci Pract 2024; 69:102878. [PMID: 38006659 DOI: 10.1016/j.msksp.2023.102878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2023] [Revised: 10/20/2023] [Accepted: 11/14/2023] [Indexed: 11/27/2023]
Abstract
BACKGROUND This study aimed to evaluate the association of physical activity (PA) before SARS-Cov-2 infection with Musculoskeletal (MSK) pain after infection. METHODS We used data from the Sulcovid-19, a longitudinal study. This study was carried out in the city of Rio Grande, in the extreme south of Brazil with individuals who were infected by SARS-Cov-2 between December/2020 and March/2021. Participants were asked on MSK pain in the cervical, thoracic, low back, upper and lower limbs. Three PA variables were built, as follows: 1) any PA (yes or no), 2) sufficient PA (based on WHO recommendations), and 3) PA status before and after COVID-19 (i.e., remained inactive, became inactive, and remained active). RESULTS Participants reporting sufficient PA levels were less likely to experience pain in the cervical (PR 0.70, 0.53-0.92 95% CI) after COVID-19. Those who remained active were less likely to experience pain in the cervical spine and in at least one body site. Becoming inactive increased the likelihood of experiencing pain in the lower limbs after infection by 30%. CONCLUSIONS Continuous PA practice regardless SARS-Cov-2 infection showed important protection effect for MSK as a consequence of infection.
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Affiliation(s)
| | | | - Eduardo Lucia Caputo
- Center for Evidence Synthesis in Health-School of Public Health- Brown University, RI, 02912, USA
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17
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Ma J, Zhang T, Li X, Chen X, Zhao Q. Effects of aquatic physical therapy on clinical symptoms, physical function, and quality of life in patients with fibromyalgia: A systematic review and meta-analysis. Physiother Theory Pract 2024; 40:205-223. [PMID: 36062580 DOI: 10.1080/09593985.2022.2119906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 08/23/2022] [Indexed: 10/14/2022]
Abstract
INTRODUCTION The main feature of fibromyalgia syndrome is extensive musculoskeletal pain and tenderness. It not only has a significant impact on patients but also brings a huge burden to families and society. Exercise is considered to be the most important part of the fibromyalgia treatment, and aquatic physical therapy can be considered one of the most recommended interventions. Therefore, the effects of aquatic physical therapy on fibromyalgia patients were discussed in this article. OBJECTIVE The purpose of this study was to evaluate the effects of aquatic physical therapy on clinical symptoms, physical function, and quality of life in patients with fibromyalgia. METHODS Eight databases were retrieved. "Fibromyalgia," "Aquatic Therapy," "Aquatic Exercise," and "Hydrotherapy" was used for retrieval. Randomized controlled trials of the effects of aquatic physical therapy on patients with fibromyalgia were included. The Cochrane risk of bias tool to assess research quality. Meta-analysis was performed by Revman version 5.3. RESULTS Finally, 14 articles (762 patients) were included in the analysis. Compared with other exercises or no exercise, aquatic physical therapy has more significant effects. There were significant differences in visual analogue scale (MD: - 0.98, 95%CI: - 1.36 to - 0.60, Z = 5.03, P < .00001), six minute walk test (MD: 38.12, 95%CI: 13.65 to 62.59, Z = 3.05, P = .002), fibromyalgia impact questionnaire total scores(MD: - 7.35, 95%CI: - 13.05 to - 1.65, Z = 2.53, P = .01), vitality of short form 36 (MD: 9.53, 95%CI: 0.62 to 18.43, Z = 2.10, P = .04) and general health of short form 36 (MD: 10.39, 95%CI: 1.42 to 19.36, Z = 2.27, P = .02). CONCLUSIONS Aquatic physical therapy may have some benefits on the clinical symptoms, physical function, and quality of life of patients with fibromyalgia.
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Affiliation(s)
- Ji Ma
- Orthopaedic Spinal Ward, Shanxi Provincial People's Hospital, Taiyuan, P.R. China
| | - Teng Zhang
- School of Nursing, Shanxi Medical University, Taiyuan, P.R. China
| | - Xin Li
- School of Nursing, Shanxi Medical University, Taiyuan, P.R. China
| | - Xiaoyu Chen
- School of Nursing, Shanxi University of Traditional Chinese Medicine, Jinzhong, P.R. China
| | - Qian Zhao
- Department of Nursing, Shanxi Provincial People's Hospital, Taiyuan, P.R.China
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18
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Bokermann J, König HH, Hajek A. Pain: its prevalence and correlates among the oldest old. Aging Clin Exp Res 2024; 36:2. [PMID: 38252184 PMCID: PMC10803491 DOI: 10.1007/s40520-023-02653-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Accepted: 11/03/2023] [Indexed: 01/23/2024]
Abstract
BACKGROUND There is very limited knowledge regarding pain among the oldest old. AIMS To investigate the prevalence and correlates of pain among the oldest old. METHODS Data were taken from the "Survey on quality of life and subjective well-being of the very old in North Rhine-Westphalia (NRW80+)", including individuals living in North Rhine-Westphalia aged 80 years and over. Pain was categorized as no pain, moderate pain and severe pain. Its prevalence was stratified by sex, age groups, marital status, place of residence and education. A multinomial logistic regression analysis was conducted. RESULTS 28.50% of the participants reported no pain, 45.06% moderate pain and 26.44% severe pain. Regressions showed that being 85 years or older and a better self-rated health status decreased the likelihood of moderate pain. Being 85-89 years old, being male, highly educated and a better self-rated health status decreased the likelihood of severe pain. The likelihood of moderate and severe pain increased with a higher number of chronic diseases. DISCUSSION Study findings showed a high prevalence of pain in the oldest old living in North Rhine-Westphalia, Germany. The likelihood of having moderate or severe pain was reduced among those who were older and presented with a better self-rated health but increased with a growing number of comorbidities. Severe pain was less likely among men and those with a higher education. CONCLUSION This cross-sectional representative study adds first evidence of prevalence and correlations of pain among the oldest old. Longitudinal studies are required to further explore the determinants of pain in this age group.
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Affiliation(s)
- Josephine Bokermann
- Department of Health Economics and Health Services Research, University Medical Center Hamburg-Eppendorf, Hamburg Center for Health Economics, Hamburg, Germany
| | - Hans-Helmut König
- Department of Health Economics and Health Services Research, University Medical Center Hamburg-Eppendorf, Hamburg Center for Health Economics, Hamburg, Germany
| | - André Hajek
- Department of Health Economics and Health Services Research, University Medical Center Hamburg-Eppendorf, Hamburg Center for Health Economics, Hamburg, Germany.
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Prent JM, van der Wurff P, Scholten-Peeters GG. Lifestyle factors and psychological factors are associated with central pain processing in service members with persistent low-back pain: A cross-sectional exploratory study. Medicine (Baltimore) 2023; 102:e36741. [PMID: 38134068 PMCID: PMC10735071 DOI: 10.1097/md.0000000000036741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Accepted: 11/30/2023] [Indexed: 12/24/2023] Open
Abstract
Persistent low-back pain (LBP) is highly prevalent in the military. Altered central pain processing is one of the mechanisms found to underlie persistent LBP. Our aim was to explore which factors are associated with altered pain processing in Dutch service members with persistent LBP. This knowledge may guide clinicians in what factors to address in the treatment of dysfunctional pain processing in service members with persistent LBP. Twenty-one service members with persistent LBP (mean age 34.0 years, 18 males) were included in this cross-sectional exploratory study. Participants completed questionnaires regarding lifestyle and psychological factors. Altered central pain processing was measured by temporal summation of pain to examine the function of the pain facilitatory system and by conditioned pain modulation to examine the pain inhibitory function. Univariable and multivariable linear regression analyses were performed. A higher local temporal summation of pain was associated with a longer sitting time, a higher level of physical activity and a higher level of pain catastrophizing. A higher local conditioned pain modulation was associated with a higher level of pain catastrophizing, anxiety and depression symptoms, and with a lower sleep quality. A higher remote conditioned pain modulation effect was associated with a higher level of physical activity, a higher body mass index and a shorter sitting time. This study succeeded in identifying lifestyle and psychological factors associated with altered pain processing in service members with persistent LBP. Prospective studies are needed to examine causality in these relationships.
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Affiliation(s)
- Julia M. Prent
- Department of Human Movement Sciences, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences Program Musculoskeletal Health, Amsterdam, The Netherlands
- Research and Development, Military Rehabilitation Centre “Aardenburg”, Doorn, The Netherlands
| | - Peter van der Wurff
- Research and Development, Military Rehabilitation Centre “Aardenburg”, Doorn, The Netherlands
| | - Gwendolyne G.M. Scholten-Peeters
- Department of Human Movement Sciences, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences Program Musculoskeletal Health, Amsterdam, The Netherlands
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20
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Huber FA, Carpenter R, Goodin BR, Bruehl S, Karlson C, Rao U, Kinney K, Nag S, Morris MC. Physical activity, sitting time, and thermal quantitative sensory testing responses in African Americans. Pain Rep 2023; 8:e1118. [PMID: 38152687 PMCID: PMC10752487 DOI: 10.1097/pr9.0000000000001118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2023] [Revised: 09/29/2023] [Accepted: 10/09/2023] [Indexed: 12/29/2023] Open
Abstract
Introduction Prior research suggests that African Americans (AAs) have more frequent, intense, and debilitating pain and functional disability compared with non-Hispanic Whites (NHWs). Potential contributing factors to this disparity are physical activity and sedentary behavior, given that AAs are less physically active, and physical activity is associated with antinociception (whereas sedentary behavior is linked to pronociception). However, impact of these factors on pain processing has largely been unexplored in AAs, especially before chronic pain onset. Objective This study examined relationships between physical activity, sedentary behavior (sitting time), and laboratory measures of pain and pain modulation in adult AAs. These included heat pain threshold and tolerance, temporal summation of pain (TSP, a marker of central sensitization), and conditioned pain modulation (CPM, a marker of descending pain inhibition). Methods Multiple regressions were conducted to examine the effects of physical activity and sitting time on heat threshold and tolerance. Multilevel models were conducted to assess the relationship between physical activity, sitting time, and temporal summation of pain. Additional multilevel models were conducted to assess the relationship between physical activity, sitting time, and conditioned pain modulation. Results Higher level of physical activity, but not sitting time, was associated with reduced TSP slopes. Neither physical activity nor sitting time was associated with CPM slopes. No significant relationships between physical activity or sitting time and heat pain threshold or tolerance were detected. Conclusions These findings suggest that physical activity is associated with reduced TSP, an effect which may be driven by reduced spinal hyperexcitability in more active individuals. Thus, structural and individual interventions designed to increase physical activity in healthy, young AAs may be able to promote antinociceptive processes (ie, reduced TSP/reduced pain facilitation) potentially protective against chronic pain.
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Affiliation(s)
- Felicitas A. Huber
- Department of Psychiatry and Human Behavior, University of Mississippi Medical Center, Jackson, MS, USA
- Department of Anesthesiology, Washington University Pain Center, Washington University School of Medicine, St. Louis, MO, USA
| | - Rachel Carpenter
- Department of Psychiatry and Human Behavior, University of Mississippi Medical Center, Jackson, MS, USA
| | - Burel R. Goodin
- Department of Anesthesiology, Washington University Pain Center, Washington University School of Medicine, St. Louis, MO, USA
| | - Stephen Bruehl
- Department of Anesthesiology, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Cynthia Karlson
- Department of Psychiatry and Human Behavior, University of Mississippi Medical Center, Jackson, MS, USA
| | - Uma Rao
- University of California at Irvine, Irvine, CA, USA
- Children's Hospital of Orange County, Orange, CA, USA
| | - Kerry Kinney
- Department of Psychiatry and Human Behavior, University of Mississippi Medical Center, Jackson, MS, USA
| | - Subodh Nag
- Department of Biochemistry, Cancer Biology, Neuroscience and Pharmacology, Meharry Medical College, TN, Nashville, USA
| | - Matthew C. Morris
- Department of Psychiatry and Human Behavior, University of Mississippi Medical Center, Jackson, MS, USA
- Department of Anesthesiology, Vanderbilt University Medical Center, Nashville, TN, USA
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21
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Dahmani D, Taik FZ, Berrichi I, Fourtassi M, Abourazzak FE. Impact of central sensitization on pain, disability and psychological distress in patients with knee osteoarthritis and chronic low back pain. BMC Musculoskelet Disord 2023; 24:877. [PMID: 37950225 PMCID: PMC10636971 DOI: 10.1186/s12891-023-07019-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/03/2023] [Accepted: 11/05/2023] [Indexed: 11/12/2023] Open
Abstract
BACKGROUND Central sensitization (CS) is becoming increasingly recognized as a significant factor in many chronic pain conditions, including knee osteoarthritis (KOA) and chronic low back pain (CLBP). Yet it presently remains unclear how strong is the involvement of CS in KOA and CLBP and which factors are involved in CS in these two chronic disabling diseases. METHODS This is a cross-sectional study in which included a total of 178 patients with KOA and 118 patients with CLBP. Inclusion criteria for eligible participants for the KOA group were a confirmed diagnosis of KOA according to the American College of Rheumatology criteria, and for the CLBP group a chronic low back pain for more than 3 months. Subjects were excluded if they presented with a diagnosed psychiatric disorder or if they lacked the capacity to provide informed consent, understand study questionnaires or perform physical performance tests. In each group, were assessed; CS-related symptoms using the Central Sentization Inventory (CSI); demographic and clinical characteristics such as disease duration, pain intensity on a visual analog scale, self-reported function using the Lequesne index for KOA patients and the Oswestry Disability index for CLBP patients, and physical performance with the 6 minutes' walk test; as well as psychosocial risk factors using the Patient Health Questionnaire for depression (PHQ-9), the Generalized Anxiety Disorder (GAD-7) and the Pain Catastrophizing Scale (PCS). RESULTS CSI scores significantly correlated with pain intensity and disability in KOA and CLBP patients, and were highly correlated with self-reported symptoms of depression, anxiety and pain catastrophizing. Depression significantly predicted the CSI score in both groups. CONCLUSION These findings provide further evidence for the impact of CS on pain, function and physical performance in KOA and CLBP patients. Psychosocial symptoms such as pain catastrophizing, anxiety and depression should also be considered as they are also associated with CS.
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Affiliation(s)
- Doha Dahmani
- Rheumatology Department, Faculty of Medicine and Pharmacy, Mohammed VI University Hospital, Abdelmalek Essaadi University, Tangier, Morocco.
| | - Fatima Zahrae Taik
- Rheumatology Department, Faculty of Medicine and Pharmacy, Mohammed VI University Hospital, Abdelmalek Essaadi University, Tangier, Morocco
- Laboratory of Life and Health Sciences, Faculty of Medicine and Pharmacy of Tangier, Abdelmalek Essaadi University, Tangier, Morocco
| | - Imane Berrichi
- Rheumatology Department, Faculty of Medicine and Pharmacy, Mohammed VI University Hospital, Abdelmalek Essaadi University, Tangier, Morocco
| | - Maryam Fourtassi
- Laboratory of Life and Health Sciences, Faculty of Medicine and Pharmacy of Tangier, Abdelmalek Essaadi University, Tangier, Morocco
| | - Fatima Ezzahra Abourazzak
- Rheumatology Department, Faculty of Medicine and Pharmacy, Mohammed VI University Hospital, Abdelmalek Essaadi University, Tangier, Morocco
- Laboratory of Life and Health Sciences, Faculty of Medicine and Pharmacy of Tangier, Abdelmalek Essaadi University, Tangier, Morocco
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22
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Costa AN, Coman A, Musich M, Park J, Beversdorf DQ, McCrae CS, Curtis AF. Sleep characteristics and pain in middle-aged and older adults: Sex-specific impact of physical and sitting activity. Sleep Med 2023; 111:180-190. [PMID: 37788556 DOI: 10.1016/j.sleep.2023.09.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 08/30/2023] [Accepted: 09/25/2023] [Indexed: 10/05/2023]
Abstract
OBJECTIVES The relationship between poor sleep health and worse pain is established. Physical activity has been successful in reducing chronic pain and improving sleep in aging adults. Despite known sex differences (more women than men experiencing chronic pain and insomnia), sex-specific patterns of interactive associations between physical activity, sleep, and pain remain unexplored. This study tested whether physical and sitting activity moderated associations between sleep characteristics and pain intensity, and whether sex further moderated these relationships. METHODS Participants aged 50+ (N = 170, Mage = 64.34, 72 women) completed an online survey measuring pre-sleep arousal (Pre-sleep Arousal Scale), sleep (Pittsburgh Sleep Quality Index), past month average pain intensity, and physical activity (International Physical Activity Questionnaire). Multiple regressions evaluated whether minutes of physical activity (total, vigorous, moderate, walking) or sitting activity, pre-sleep arousal, sleep, sex, or their interaction was associated with pain. Analyses controlled for education, difficulty walking, body mass index, total medical conditions, pain medication, and depressive/anxiety symptoms. RESULTS In women, vigorous activity interacted with total pre-sleep arousal and somatic pre-sleep arousal in its association with pain. Higher total arousal and somatic arousal were associated with worse pain intensity only for women who reported highest levels of vigorous activity. No such associations were observed for men or for other physical or sitting activity levels. CONCLUSIONS Vigorous physical activity may exacerbate the association between more pre-sleep arousal and worse pain in middle-aged and older women. Research should explore potential sex-specific mechanisms (e.g., inflammatory cytokines, arousal neural networks) underlying these results.
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Affiliation(s)
- Amy N Costa
- Department of Psychology, University of South Florida, Tampa, FL, USA; Department of Psychological Sciences, University of Missouri-Columbia, Columbia, MO, USA
| | - Adriana Coman
- Department of Biological Chemistry, Grinnell College, Grinnell, IA, USA
| | - Madison Musich
- Department of Psychological Sciences, University of Missouri-Columbia, Columbia, MO, USA
| | - Jeeeun Park
- Department of Psychological Sciences, University of Missouri-Columbia, Columbia, MO, USA; Department of Biological Sciences, University of Missouri-Columbia, Columbia, MO, USA
| | - David Q Beversdorf
- Department of Psychological Sciences, University of Missouri-Columbia, Columbia, MO, USA; Department of Neurology, University of Missouri-Columbia, Columbia, MO, USA; Department of Radiology, University of Missouri-Columbia, Columbia, MO, USA
| | | | - Ashley F Curtis
- College of Nursing, University of South Florida, Tampa, FL, USA.
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23
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Naugle KM, Naugle KE, Teegardin M, Kaleth AS. Physical Activity to Prevent the Age-Related Decline of Endogenous Pain Modulation. Exerc Sport Sci Rev 2023; 51:169-175. [PMID: 37462564 DOI: 10.1249/jes.0000000000000325] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/09/2023]
Abstract
As humans age, the capacity of the central nervous system to endogenously modulate pain significantly deteriorates, thereby increasing the risk for the development of chronic pain. Older adults are the least physically active cohort of all age groups. We hypothesize that a sedentary lifestyle and decreased physical activity may contribute to the decline of endogenous pain modulation associated with aging.
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Affiliation(s)
- Kelly M Naugle
- Department of Kinesiology, School of Health and Human Sciences, Indiana University Purdue University Indianapolis (IUPUI), Indianapolis, IN
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24
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Zi‐Han X, Nan A, Rui CJ, Yong‐Long Y. Modulation of pain perceptions following treadmill running with different intensities in females. Physiol Rep 2023; 11:e15831. [PMID: 37749050 PMCID: PMC10519819 DOI: 10.14814/phy2.15831] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 09/12/2023] [Accepted: 09/12/2023] [Indexed: 09/27/2023] Open
Abstract
We aimed to compare the effects of three intensities of treadmill running on exercise-induced hypoalgesia (EIH) in healthy individuals. We anticipated that the primary and secondary changes in pain perception and modulation may differ between running intensities. Sixty-six women were randomly assigned to one of three treadmill running intensities for 35 min: 40% reserved heart rate (HRR), 55% HRR, or 70% HRR. The effects of EIH were assessed using pressure pain thresholds (PPT) and tolerance thresholds (PPTol). We measured conditional pain modulation (CPM). Compared with baseline, PPT and PPTol significantly increased in all groups during running and at the 5-10-min follow-up. The PPT and PPTol changes in the moderate- and low-intensity groups were significantly higher than those in the high-intensity group during running and 24 h after running, while the CPM responses of the high-intensity group were significantly reduced at the 24-h follow-up. Moderate- and low-intensity running may elicit significant primary and secondary (persisting over 24 h) EIH effects and increase CPM responses in females. However, high-intensity running induced only limited analgesic effects and reduced CPM responses, which may be attributed to the activation of endogenous pain modulation.
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Affiliation(s)
- Xu Zi‐Han
- School of Sport Medicine and RehabilitationBeijing Sport UniversityBeijingChina
| | - An Nan
- School of Sport Medicine and RehabilitationBeijing Sport UniversityBeijingChina
| | - Chang Jeremy Rui
- Department of Rehabilitation SciencesThe Hong Kong Polytechnic UniversityHong KongChina
| | - Yang Yong‐Long
- School of Sport Medicine and RehabilitationBeijing Sport UniversityBeijingChina
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25
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Langford DJ, Sharma S, McDermott MP, Beeram A, Besherat S, France FO, Mark R, Park M, Nishtar M, Turk DC, Dworkin RH, Gewandter JS. Covariate Adjustment in Chronic Pain Trials: An Oft-Missed Opportunity. THE JOURNAL OF PAIN 2023; 24:1555-1569. [PMID: 37327942 PMCID: PMC11261744 DOI: 10.1016/j.jpain.2023.06.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 05/24/2023] [Accepted: 06/07/2023] [Indexed: 06/18/2023]
Abstract
Self-reported pain intensity, frequently used as an outcome in randomized clinical trials (RCTs) of chronic pain, is often highly variable and could be associated with multiple baseline factors. Thus, the assay sensitivity of pain trials (ie, the ability of the trial to detect a true treatment effect) could be improved by including prespecified baseline factors in the primary statistical model. The objective of this focus article was to characterize the baseline factors included in statistical analyses of chronic pain RCTs. Seventy-three RCTs published between 2016 and 2021 that investigated interventions for chronic pain were included. The majority of trials identified a single primary analysis (72.6%; n = 53). Of these, 60.4% (n = 32) included one or more covariates in the primary statistical model, most commonly baseline value of the primary outcome, study site, sex, and age. Only one of the trials reported information regarding associations between covariates and outcomes (ie, information that could inform prioritization of covariates for prespecification in future analyses). These findings demonstrate inconsistent use of covariates in the statistical models in chronic pain clinical trials. Prespecified adjustments for baseline covariates that could increase precision and assay sensitivity should be considered in future clinical trials of chronic pain treatments. PERSPECTIVE: This review demonstrates inconsistent inclusion and potential underutilization of covariate adjustment in analyses of chronic pain RCTs. This article highlights areas for possible improvement in design and reporting related to covariate adjustment to improve efficiency in future RCTs.
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Affiliation(s)
- Dale J. Langford
- Department of Anesthesiology, Critical Care & Pain Management, Hospital for Special Surgery, New York, NY, USA
- Department of Anesthesiology & Perioperative Medicine, University of Rochester School of Medicine and Dentistry, Rochester, NY, USA
- Department of Anesthesiology & Pain Medicine, University of Washington, Seattle, WA, USA
| | - Sonia Sharma
- Neuro Pain Management Center, Department of Neurosurgery, University of Rochester Medical Center, Rochester, NY, USA
| | - Michael P. McDermott
- Department of Biostatistics and Computational Biology, University of Rochester School of Medicine and Dentistry, Rochester, NY, USA
| | - Avinash Beeram
- Department of Anesthesiology & Perioperative Medicine, University of Rochester School of Medicine and Dentistry, Rochester, NY, USA
| | - Soroush Besherat
- Department of Anesthesiology & Perioperative Medicine, University of Rochester School of Medicine and Dentistry, Rochester, NY, USA
| | - Fallon O. France
- Department of Anesthesiology & Perioperative Medicine, University of Rochester School of Medicine and Dentistry, Rochester, NY, USA
| | - Remington Mark
- Department of Anesthesiology & Perioperative Medicine, University of Rochester School of Medicine and Dentistry, Rochester, NY, USA
| | - Meghan Park
- Department of Anesthesiology & Perioperative Medicine, University of Rochester School of Medicine and Dentistry, Rochester, NY, USA
| | - Mahd Nishtar
- Department of Anesthesiology & Perioperative Medicine, University of Rochester School of Medicine and Dentistry, Rochester, NY, USA
| | - Dennis C. Turk
- Department of Anesthesiology & Pain Medicine, University of Washington, Seattle, WA, USA
| | - Robert H. Dworkin
- Department of Anesthesiology & Perioperative Medicine, University of Rochester School of Medicine and Dentistry, Rochester, NY, USA
| | - Jennifer S. Gewandter
- Department of Anesthesiology & Perioperative Medicine, University of Rochester School of Medicine and Dentistry, Rochester, NY, USA
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26
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Gyasi RM, Phillips DR, Boampong MS, Abass K, Kyei-Arthur F, Agunbiade OM, Mohamed SF, Salarvand S, Smith L, Hajek A. Bodily Pain in Physical Function and the Role of Physical Activity Among Community-Dwelling Adults Aged 50-69 Years in Ghana. J Gerontol A Biol Sci Med Sci 2023; 78:1604-1611. [PMID: 37354137 DOI: 10.1093/gerona/glad156] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Indexed: 06/26/2023] Open
Abstract
BACKGROUND Older adults who experience pain are likely to report higher functional limitations (FL) and lower physical activity (PA) levels. However, the extent to which PA explains the association of pain with FL is largely unknown, particularly in low- and middle-income countries. This study estimates whether and how much pain in FL is mediated by PA engagement. METHODS We used cross-sectional data from 770 adults aged 50-69 years who participated in the Aging, Health, Psychological Well-being, and Health-seeking Behavior Study in Ghana. FL and pain characteristics were defined using the Medical Outcomes Study Short Form-36. PA was assessed by the International Physical Activity Questionnaire-Short Form. Bootstrapped mediation analyses estimated the direct and indirect hypothesized associations. The control variables included age, sex, residential type, level of education, monthly income, social isolation, emotional distress, multimorbidity, and self-rated health. RESULTS After adjusting for potential confounders, higher pain interference (β = 0.091, p < .05) and higher pain severity (β = 0.075, p < .05) were associated with greater FL. The bootstrapping analyses showed that PA mediated the pain interference-FL association, accounting for approximately 58% (β = 0.124, Boots 95% confidence interval (CI): 0.078-0.175) of the total effect (β = 0.215, Boots 95% CI: 0.095-0.335). Similarly, PA mediated the association between pain severity with FL, accounting for approximately 37% (β = 0.044, Boots 95% CI: 0.001-0.094) of the overall effect (β = 0.119, Boots 95% CI: -0.011 to 0.249). CONCLUSIONS Our data suggest that the higher pain severity and pain interference may lead to higher FL in middle and old age, and the associations are partially explained by PA. Effective and low-cost PA participation could be targeted in efforts to reduce the effect of pain on physical functioning among middle-aged and older adults.
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Affiliation(s)
- Razak M Gyasi
- African Population and Health Research Center, Nairobi, Kenya
- National Centre for Naturopathic Medicine, Faculty of Health, Southern Cross University, Lismore, New South Wales, Australia
| | - David R Phillips
- Department of Sociology and Social Policy, Lingnan University, Tuen Mun, Hong Kong
| | - Mary Sefa Boampong
- Department of Sociology and Social Work, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Kabila Abass
- Department of Geography and Rural Development, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Frank Kyei-Arthur
- Department of Environment and Public Health, University of Environment and Sustainable Development, Somanya, Ghana
| | - Ojo Melvin Agunbiade
- Department of Nursing Science, Obafemi Awolowo University, Ile-Ife, Osun State, Nigeria
| | - Sukri F Mohamed
- African Population and Health Research Center, Nairobi, Kenya
| | - Shahin Salarvand
- Hepatitis Research Center, Faculty of Nursing and Midwifery, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Lee Smith
- Centre for Health, Performance, and Wellbeing, Anglia Ruskin University, Cambridge, UK
| | - André Hajek
- Department of Health Economics and Health Services Research, University Medical Center Hamburg-Eppendorf, Hamburg Center for Health Economics, Hamburg, Germany
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27
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Årnes AP, Nielsen CS, Stubhaug A, Fjeld MK, Johansen A, Morseth B, Strand BH, Wilsgaard T, Steingrímsdóttir ÓA. Longitudinal relationships between habitual physical activity and pain tolerance in the general population. PLoS One 2023; 18:e0285041. [PMID: 37224163 DOI: 10.1371/journal.pone.0285041] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2023] [Accepted: 04/13/2023] [Indexed: 05/26/2023] Open
Abstract
Physical activity (PA) might influence the risk or progression of chronic pain through pain tolerance. Hence, we aimed to assess whether habitual leisure-time PA level and PA change affects pain tolerance longitudinally in the population. Our sample (n = 10,732; 51% women) was gathered from the sixth (Tromsø6, 2007-08) and seventh (Tromsø7, 2015-16) waves of the prospective population-based Tromsø Study, Norway. Level of leisure-time PA (sedentary, light, moderate, or vigorous) was derived from questionnaires; experimental pain tolerance was measured by the cold-pressor test (CPT). We used ordinary, and multiple-adjusted mixed, Tobit regression to assess 1) the effect of longitudinal PA change on CPT tolerance at follow-up, and 2) whether a change in pain tolerance over time varied with level of LTPA. We found that participants with high consistent PA levels over the two surveys (Tromsø6 and Tromsø7) had significantly higher tolerance than those staying sedentary (20.4 s. (95% CI: 13.7, 27.1)). Repeated measurements show that light (6.7 s. (CI 3.4, 10.0)), moderate (CI 14.1 s. (9.9, 18.3)), and vigorous (16.3 s. (CI 6.0, 26.5)) PA groups had higher pain tolerance than sedentary, with non-significant interaction showed slightly falling effects of PA over time. In conclusion, being physically active at either of two time points measured 7-8 years apart was associated with higher pain tolerance compared to being sedentary at both time-points. Pain tolerance increased with higher total activity levels, and more for those who increased their activity level during follow-up. This indicates that not only total PA amount matters but also the direction of change. PA did not significantly moderate pain tolerance change over time, though estimates suggested a slightly falling effect possibly due to ageing. These results support increased PA levels as a possible non-pharmacological pathway towards reducing or preventing chronic pain.
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Affiliation(s)
| | - Christopher Sievert Nielsen
- Division of Mental and Physical Health, Norwegian Institute of Public Health, Oslo, Norway
- Division of Emergencies and Critical Care, Department of Pain Management and Research, Oslo University Hospital, Oslo, Norway
| | - Audun Stubhaug
- Division of Emergencies and Critical Care, Department of Pain Management and Research, Oslo University Hospital, Oslo, Norway
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Mats Kirkeby Fjeld
- Division of Mental and Physical Health, Norwegian Institute of Public Health, Oslo, Norway
| | - Aslak Johansen
- Department of Pain, University Hospital of North Norway, Tromsø, Norway
| | - Bente Morseth
- School of Sport Sciences, UiT The Arctic University of Norway, Tromsø, Norway
| | - Bjørn Heine Strand
- Division of Mental and Physical Health, Norwegian Institute of Public Health, Oslo, Norway
- The Norwegian National Centre for Ageing and Health, Vestfold Hospital Trust Norway, Tønsberg, Norway
| | - Tom Wilsgaard
- Department of Community Medicine, UiT The Arctic University of Norway, Tromsø, Norway
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28
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Núñez-Cortés R, Cruz-Montecinos C, Torreblanca-Vargas S, Andersen LL, Tapia C, Ortega-Palavecinos M, López-Bueno R, Calatayud J, Pérez-Alenda S. Social determinants of health and physical activity are related to pain intensity and mental health in patients with carpal tunnel syndrome. Musculoskelet Sci Pract 2023; 63:102723. [PMID: 36740566 DOI: 10.1016/j.msksp.2023.102723] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 01/24/2023] [Accepted: 01/30/2023] [Indexed: 02/01/2023]
Abstract
BACKGROUND Carpal tunnel syndrome (CTS) is the most common peripheral neuropathy of the upper limb and a frequent cause of disability. OBJECTIVE To analyze the association between social determinants of health (SDH) and physical activity with pain intensity and mental health in patients with CTS. DESIGN A cross-sectional study was conducted in patients with CTS awaiting surgery in two public hospitals in Chile. METHODS The SDH collected included: employment status, educational level and monetary income. The level of physical activity was defined according to compliance with WHO recommendations. Outcome measures included: Pain intensity (Visual Analog Scale), Symptoms of anxiety and depression (Hospital Anxiety and Depression Scale), and catastrophic thinking (Pain Catastrophizing Scale). The adjusted regression coefficient (β) for the association between SDH and physical activity with each outcome was obtained using multivariable linear regression models controlling for age, sex, body mass index and symptom duration. RESULTS Eighty-six participants were included (mean age 50.9 ± 10 years, 94% women). A high level of physical activity was associated with a 12.41 mm decrease in pain intensity (β = -12.41, 95%CI: -23.87 to -0.95) and a 3.29 point decrease in depressive symptoms (β = -3.29, 95%CI: -5.52 to -1.06). In addition, being employed was associated with a 2.30 point decrease in anxiety symptoms (β = -2.30; 95%CI: -4.41 to -0.19) and a high educational level was associated with a 7.71 point decrease in catastrophizing (β = -7.71; 95%CI: -14.06 to -1.36). CONCLUSION Multidisciplinary care teams should be aware of the association between SDH and physical activity with physical and mental health.
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Affiliation(s)
- Rodrigo Núñez-Cortés
- Physiotherapy in Motion Multispeciality Research Group (PTinMOTION), Department of Physiotherapy, University of Valencia, Valencia, Spain; Department of Physical Therapy, Faculty of Medicine, University of Chile, Santiago, Chile; Section of Clinical Research, Hospital Clínico La Florida, Santiago, Chile
| | - Carlos Cruz-Montecinos
- Physiotherapy in Motion Multispeciality Research Group (PTinMOTION), Department of Physiotherapy, University of Valencia, Valencia, Spain; Department of Physical Therapy, Faculty of Medicine, University of Chile, Santiago, Chile; Section of Research, Innovation and Development in Kinesiology, Kinesiology Unit, San José Hospital, Santiago, Chile
| | | | | | - Claudio Tapia
- Department of Physical Therapy, Faculty of Medicine, University of Chile, Santiago, Chile
| | | | - Rubén López-Bueno
- National Research Centre for the Working Environment, Copenhagen, Denmark; Exercise Intervention for Health Research Group (EXINH-RG), Department of Physiotherapy, University of Valencia, Spain; Department of Physical Medicine and Nursing, University of Zaragoza, Zaragoza, Spain
| | - Joaquín Calatayud
- National Research Centre for the Working Environment, Copenhagen, Denmark; Exercise Intervention for Health Research Group (EXINH-RG), Department of Physiotherapy, University of Valencia, Spain.
| | - Sofía Pérez-Alenda
- Physiotherapy in Motion Multispeciality Research Group (PTinMOTION), Department of Physiotherapy, University of Valencia, Valencia, Spain
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Umeda M, Okifuji A. Exploring the sex differences in conditioned pain modulation and its biobehavioral determinants in healthy adults. Musculoskelet Sci Pract 2023; 63:102710. [PMID: 36566112 DOI: 10.1016/j.msksp.2022.102710] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 12/13/2022] [Accepted: 12/17/2022] [Indexed: 12/23/2022]
Abstract
BACKGROUND Females are at greater risk of chronic pain, and exhibit higher pain sensitivity compared to males. However, sex differences in conditioned pain modulation (CPM), a neurophysiological risk factor of chronic pain, are unclear. CPM is influenced by many factors, some of which are sex-dependent. This study explored the sex differences in CPM and its biobehavioral determinants, such as blood pressure responses, physical activity levels, pain catastrophizing scores, and conditioning stimulus intensity, in young, healthy, physically active males and females. METHODS Twenty-six males and 24 females completed the CPM test using an electrical pain stimulus and a cold pain stimulus induced via 2 min of cold pressor test. Blood pressure was assessed at baseline and during cold pressor test, whereas cold pain ratings were obtained during cold pressor test to monitor the conditioning stimulus intensity. Physical activity was evaluated via questionnaires and accelerometer, whereas pain catastrophizing was evaluated via a questionnaire. RESULTS Both males and females exhibited CPM, without sex differences in the magnitude of CPM. The males showed higher resting blood pressure, higher physical activity levels, and lower pain catastrophizing scores than the females, without sex differences observed in cold pain ratings and proportion of those who met the physical activity guidelines. No correlations were observed between CPM and its determinants. CONCLUSIONS The results suggest the complexity of mechanisms underlying the sex differences in CPM. The sex differences in CPM, along with its determinants, may need to be examined in individuals with some risk factors for chronic pain.
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Affiliation(s)
- Masataka Umeda
- Department of Kinesiology, University of Texas at San Antonio, San Antonio, TX, USA.
| | - Akiko Okifuji
- Division of Pain Medicine, Department of Anesthesiology, University of Utah, Salt Lake City, UT, USA
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Uzawa H, Ishii H, Ishida T, Shida T, Furuyama H, Nishida Y. Factors Associated with Low Inter-Session Reliability of Conditioned Pain Modulation in Older People with or Without Chronic Musculoskeletal Pain. J Pain Res 2023; 16:1039-1053. [PMID: 36992922 PMCID: PMC10041985 DOI: 10.2147/jpr.s391943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Accepted: 03/16/2023] [Indexed: 03/31/2023] Open
Abstract
Purpose Conditioned pain modulation (CPM) is a measurement of the descending pain pathways that inhibit or facilitate afferent noxious stimuli. The reliability of CPM in older individuals with or without chronic musculoskeletal pain has not been sufficiently reported. This study aimed to examine the inter-session reliability of CPM in these cohorts and the factors in CPM reliability. Patients and Methods Individuals aged 65 or older were recruited in Narita, Japan. The measurements were performed on separate days 2 weeks apart (sessions 1 and 2). Each participant's hand was immersed in cold water, and we measured pressure pain threshold (PPT) before and after the immersion. The ratio before and after PPT measurements was presented as CPM index. The autonomic activities (heart rate variability, heart rate, and blood pressure) were simultaneously measured. An absolute reliability of CPM index was analyzed by the adjusted two-way analysis of variance (ANOVA) and the Bland Altman plot, and relative reliability was analyzed by intraclass correlation coefficient (ICC). Spearman's rho correlation and the adjusted multivariate regression analysis were utilized for examining the CPM reliability factors. Results Thirty-two participants were divided into two groups: chronic pain (n=19) and non-chronic pain (n=13) groups. The mean difference between session 1 and 2 in CPM index showed a systematic error in the chronic pain group at 17.3 (confidence interval, CI: 15.0 to 19.7), but none in the non-chronic pain group at 3.7 (CI: -0.02 to 7.4). The adjusted two-way ANOVA for CPM index did not identify any differences. ICC was not significant at p=-0.247 in the non-chronic and 0.167 in chronic pain. Multivariate regression analysis revealed total power and low/high frequencies as significant factors for CPM index. Conclusion This study identified low inter-session reliability in older adults with chronic musculoskeletal pain and autonomic nervous system activities as factors in CPM reliability.
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Affiliation(s)
- Hironobu Uzawa
- Department of Physical Therapy, International University of Health and Welfare, Narita, Chiba, Japan
- Correspondence: Hironobu Uzawa, Department of Physical Therapy, International University of Health and Welfare, 4-3, Kozunomori, Narita, Chiba, 286-8686, Japan, Tel/Fax +81-746-20-7716, Email
| | - Hideaki Ishii
- Department of Physical Therapy, International University of Health and Welfare, Narita, Chiba, Japan
| | - Takeki Ishida
- Department of Physical Therapy, International University of Health and Welfare, Narita, Chiba, Japan
| | - Takashi Shida
- Department of Medical Technology and Science, International University of Health and Welfare, Narita, Chiba, Japan
- Research Team for Promoting Independence and Mental Health, Tokyo Metropolitan Institute for Geriatrics and Gerontology, Tokyo, Japan
| | - Hiroto Furuyama
- Department of Rehabilitation, International University of Health and Welfare Narita Hospital, Narita, Chiba, Japan
| | - Yusuke Nishida
- Department of Physical Therapy, International University of Health and Welfare, Narita, Chiba, Japan
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Development of a Clinical Prediction Rule for Treatment Success with Transcranial Direct Current Stimulation for Knee Osteoarthritis Pain: A Secondary Analysis of a Double-Blind Randomized Controlled Trial. Biomedicines 2022; 11:biomedicines11010004. [PMID: 36672512 PMCID: PMC9855334 DOI: 10.3390/biomedicines11010004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 12/12/2022] [Accepted: 12/14/2022] [Indexed: 12/24/2022] Open
Abstract
The study’s objective was to develop a clinical prediction rule that predicts a clinically significant analgesic effect on chronic knee osteoarthritis pain after transcranial direct current stimulation treatment. This is a secondary analysis from a double-blind randomized controlled trial. Data from 51 individuals with chronic knee osteoarthritis pain and an impaired descending pain inhibitory system were used. The intervention comprised a 15-session protocol of anodal primary motor cortex transcranial direct current stimulation. Treatment success was defined by the Western Ontario and McMaster Universities’ Osteoarthritis Index pain subscale. Accuracy statistics were calculated for each potential predictor and for the final model. The final logistic regression model was statistically significant (p < 0.01) and comprised five physical and psychosocial predictor variables that together yielded a positive likelihood ratio of 14.40 (95% CI: 3.66−56.69) and an 85% (95%CI: 60−96%) post-test probability of success. This is the first clinical prediction rule proposed for transcranial direct current stimulation in patients with chronic pain. The model underscores the importance of both physical and psychosocial factors as predictors of the analgesic response to transcranial direct current stimulation treatment. Validation of the proposed clinical prediction rule should be performed in other datasets.
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Peterson JA, Lohman C, Larson RD, Bemben MG, Black CD. Lean Mass is Associated with, but Does Not Mediate Sex Differences in Pressure Pain Sensitivity in Healthy Adults. J Pain Res 2022; 15:3981-3994. [PMID: 36561645 PMCID: PMC9767032 DOI: 10.2147/jpr.s387635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2022] [Accepted: 11/12/2022] [Indexed: 12/23/2022] Open
Abstract
Background Sex differences exist in pain sensitivity, however, the underlying mechanism(s) that explain these differences are not fully understood. Pain sensitivity has been shown to be influenced by body mass index, but limited data exist on the role of body composition on pain sensitivity. The purpose was to examine the influence of body composition on pain sensitivity in males and females. Methods This cross-sectional study design used pressure pain thresholds (PPT) of 87 participants (45 female) who were assessed in the vastus lateralis (leg PPT) and brachioradialis (arm PPT) using a pressure algometer. Fat and lean tissue were assessed via dual-energy X-ray absorptiometry (DXA). A two group by two limb, repeated measured ANOVA was used to assess differences between limbs and sex. Spearman correlations and hierarchical regression analyses were employed to determine the association between body composition and PPT. Results Males had higher PPTs then females (P<0.05) and had higher DXA assessed lean and lower levels fat mass (P<0.05). Total body and limb specific lean mass was associated with PPTs (r≥0.34; P<0.05). Hierarchical regression analysis revealed lean mass was a significant predictor of 8% of the variance in arm PPT (P<0.006) and 18% of the variance in leg PPT (P<0.001). However, lean mass was not found to statistically mediate the observed sex differences in PPT. Conclusion This finding suggests lean mass may play a previously unknown role in sex differences in pressure pain sensitivity. Future studies are needed to confirm this finding and a larger sample size is likely required to have sufficient power to perform the mediation analysis.
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Affiliation(s)
- Jessica A Peterson
- Department of Health and Exercise Science, University of Oklahoma, Norman, OK, USA,Department of Community Dentistry and Behavioral Science, University of Florida, Gainesville, FL, USA,Pain Research and Intervention Center of Excellence, University of Florida, Gainesville, FL, USA
| | - Cameron Lohman
- Department of Health and Exercise Science, University of Oklahoma, Norman, OK, USA
| | - Rebecca D Larson
- Department of Health and Exercise Science, University of Oklahoma, Norman, OK, USA
| | - Michael G Bemben
- Department of Health and Exercise Science, University of Oklahoma, Norman, OK, USA
| | - Christopher D Black
- Department of Health and Exercise Science, University of Oklahoma, Norman, OK, USA,Correspondence: Christopher D Black, Department of Health and Exercise Science, University of Oklahoma, Norman, OK, 73069, USA, Tel +1 706-255-3750, Email
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Television-viewing time and bodily pain in Australian adults with and without type 2 diabetes: 12-year prospective relationships. BMC Public Health 2022; 22:2218. [PMID: 36447213 PMCID: PMC9706940 DOI: 10.1186/s12889-022-14566-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Accepted: 11/07/2022] [Indexed: 12/03/2022] Open
Abstract
BACKGROUND Bodily pain is a common presentation in several chronic diseases, yet the influence of sedentary behaviour, common in ageing adults, is unclear. Television-viewing (TV) time is a ubiquitous leisure-time sedentary behaviour, with a potential contribution to the development of bodily pain. We examined bodily pain trajectories and the longitudinal relationships of TV time with the bodily pain severity; and further, the potential moderation of the relationships by type 2 diabetes (T2D) status. METHOD Data were from 4099 participants (aged 35 to 65 years at baseline) in the Australian Diabetes, Obesity and Lifestyle Study (AusDiab), who took part in the follow-ups at 5 years, 12 years, or both. Bodily pain (from SF36 questionnaire: a 0 to 100 scale, where lower scores indicate more-severe pain), TV time, and T2D status [normal glucose metabolism (NGM), prediabetes, and T2D] were assessed at all three time points. Multilevel growth curve modelling used age (centred at 50 years) as the time metric, adjusting for potential confounders, including physical activity and waist circumference. RESULTS Mean TV time increased, and bodily pain worsened (i.e., mean bodily pain score decreased) across the three time points. Those with T2D had higher TV time and more-severe bodily pain than those without T2D at all time points. In a fully adjusted model, the mean bodily pain score for those aged 50 years at baseline was 76.9(SE: 2.2) and worsened (i.e., bodily pain score decreased) significantly by 0.3(SE: 0.03) units every additional year (p <0.001). Those with initially more-severe pain had a higher rate of increase in pain severity. At any given time point, a one-hour increase in daily TV time was significantly associated with an increase in pain severity [bodily pain score decreased by 0.69 (SE: 0.17) units each additional hour; p <0.001], accounting for the growth factor (age) and confounders' effects. The association was more-pronounced in those with T2D than in those without (prediabetes or NGM), with the effect of T2D on bodily pain severity becoming more apparent as TV time increases, significantly so when TV time increased above 2.5 hours per day. CONCLUSION Bodily pain severity increased with age in middle-aged and older Australian adults over a 12-year period, and increments in TV time predicted increased bodily pain severity at any given period, which was more pronounced in those with T2D. While increasing physical activity is a mainstay of the prevention and management of chronic health problems, these new findings highlight the potential of reducing sedentary behaviours in this context.
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Adamczyk WM, Szikszay TM, Nahman-Averbuch H, Skalski J, Nastaj J, Gouverneur P, Luedtke K. To Calibrate or not to Calibrate? A Methodological Dilemma in Experimental Pain Research. THE JOURNAL OF PAIN 2022; 23:1823-1832. [PMID: 35918020 DOI: 10.1016/j.jpain.2022.07.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Revised: 06/24/2022] [Accepted: 07/20/2022] [Indexed: 05/23/2023]
Abstract
To calibrate or not to calibrate? This question is raised by almost everyone designing an experimental pain study with supra-threshold stimulation. The dilemma is whether to individualize stimulus intensity to the pain threshold / supra-threshold pain level of each participant or whether to provide the noxious stimulus at a fixed intensity so that everyone receives the identical input. Each approach has unique pros and cons which need to be considered to i) accurately design an experiment, ii) enhance statistical inference in the given data and, iii) reduce bias and the influence of confounding factors in the individual study e.g., body composition, differences in energy absorption and previous experience. Individualization requires calibration, a procedure already irritating the nociceptive system but allowing to match the pain level across individuals. It leads to a higher variability of the stimulus intensity, thereby influencing the encoding of "noxiousness" by the central nervous system. Results might be less influenced by statistical phenomena such as ceiling/floor effects and the approach does not seem to rise ethical concerns. On the other hand, applying a fixed (standardized) intensity reduces the problem of intensity encoding leading to a large between-subjects variability in pain responses. Fixed stimulation intensities do not require pre-exposure. It can be proposed that one method is not preferable over another, however the choice depends on the study aim and the desired level of external validity. This paper discusses considerations for choosing the optimal approach for experimental pain studies and provides recommendations for different study designs. PERSPECTIVE: To calibrate pain or not? This dilemma is related to almost every experimental pain research. The decision is a trade-off between statistical power and greater control of stimulus encoding. The article decomposes both approaches and presents the pros and cons of either approach supported by data and simulation experiment.
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Affiliation(s)
- Waclaw M Adamczyk
- Laboratory of Pain Research, Institute of Physiotherapy and Health Sciences, The Jerzy Kukuczka Academy of Physical Education, Katowice, Poland; Institute of Health Sciences, Department of Physiotherapy, Pain & Exercise Research Luebeck (P.E.R.L.), University of Lübeck, Lübeck, Germany.
| | - Tibor M Szikszay
- Institute of Health Sciences, Department of Physiotherapy, Pain & Exercise Research Luebeck (P.E.R.L.), University of Lübeck, Lübeck, Germany
| | - Hadas Nahman-Averbuch
- Washington University Pain Center, Department of Anesthesiology, Washington University School of Medicine, St. Louis, Missouri
| | - Jacek Skalski
- Laboratory of Pain Research, Institute of Physiotherapy and Health Sciences, The Jerzy Kukuczka Academy of Physical Education, Katowice, Poland
| | - Jakub Nastaj
- Laboratory of Pain Research, Institute of Physiotherapy and Health Sciences, The Jerzy Kukuczka Academy of Physical Education, Katowice, Poland
| | - Philip Gouverneur
- Institute of Medical Informatics, University of Lübeck, Lübeck, Germany
| | - Kerstin Luedtke
- Institute of Health Sciences, Department of Physiotherapy, Pain & Exercise Research Luebeck (P.E.R.L.), University of Lübeck, Lübeck, Germany; Center of Brain, Behavior and Metabolism (CBBM), University of Lübeck, Lübeck, Germany
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Combined effects of lifestyle and psychosocial factors on central sensitization in patients with chronic low back pain: A cross-sectional study. J Orthop Sci 2022; 27:1185-1189. [PMID: 34404611 DOI: 10.1016/j.jos.2021.07.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 06/08/2021] [Accepted: 07/19/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND Central sensitization is one cause of chronic low back pain. Lifestyle and psychosocial factors are involved in the exacerbation of central sensitization. However, the combined effects of these factors on central sensitization in patients with chronic low back pain are unclear. The objective of this study was to investigate the combined effects of lifestyle and psychosocial factors on central sensitization in patients with chronic low back pain. METHODS This was a cross-sectional study. The participants were recruited from three orthopedic clinics for a total of 70 patients with chronic low back pain. Data were analyzed using hierarchical multiple regression analysis. In Model 1, lifestyle factors such as sleep quality, physical activity, sitting time, and perceived stress were included. Model 2 included psychosocial factors (pain catastrophizing, anxiety, and depression). RESULTS The data showed that sleep (b = 0.30) and perceived stress (b = 0.47) were significantly correlated in Model 1, and anxiety (b = 0.41) and perceived stress (b = 0.27) were significantly correlated in Model 2. Furthermore, contributions from sleep (b = 0.14) decreased, and no significant correlations were observed. The coefficient of determination increased significantly from Model 1 to Model 2 (ΔR 2 = 0.12, p < 0.05). CONCLUSIONS In this study, we clarified that perceived stress and anxiety were correlated with central sensitization in patients with chronic low back pain. In addition, sleep quality mediates anxiety and may be associated with central sensitization.
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Valera-Calero JA, Varol U. Correlation among Routinary Physical Activity, Salivary Cortisol, and Chronic Neck Pain Severity in Office Workers: A Cross-Sectional Study. Biomedicines 2022; 10:biomedicines10102637. [PMID: 36289898 PMCID: PMC9599052 DOI: 10.3390/biomedicines10102637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 10/11/2022] [Accepted: 10/17/2022] [Indexed: 11/21/2022] Open
Abstract
This study aimed to assess the correlation between different aspects of routinary physical activity with chronic neck pain severity indicators and salivary cortisol. This cross-sectional observational study included ninety-four office workers with non-specific chronic neck pain in the analyses. Pain related outcomes (pain intensity, pressure pain thresholds and disability), physical activity outcomes using the International Physical Activity Questionnaire, and salivary cortisol levels were evaluated. Pearson’s correlation analysis was used to investigate internal associations and regression models to explain and calculate which factors contribute to the variance of salivary cortisol and neck pain severity. Female sex (p < 0.01), sedentary behaviors (p < 0.05), and pain sensitivity (p < 0.05) were associated with greater cortisol levels (p < 0.05), but disability and pain intensity were not associated (p > 0.05). Worse disability, pain intensity, and pain pressure thresholds were also associated with lower routinary physical activity (p < 0.05). Regression models explained 20.6% of pain intensity (based on walking time to their workplace, age and pain sensitivity); 27.3% of disability (based on moderate physical activity at home, vigorous physical activity during leisure time and pain sensitivity); 54.2% of pain sensitivity (based on cycling time from home to their workplace, gender and vigorous activity during leisure time) and 38.2% of salivary cortisol concentration (based on systolic pressure, vigorous activity at work and both moderate and vigorous activity at home). Our results demonstrated the association between salivary cortisol concentration with moderate and vigorous physical activity, sitting time at work, and PPTs. However, salivary cortisol was not associated with disability or pain intensity.
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Affiliation(s)
- Juan Antonio Valera-Calero
- Department of Physiotherapy, Faculty of Health, Camilo Jose Cela University, 28962 Villanueva de la Cañada, Spain
- VALTRADOFI Research Group, Department of Physiotherapy, Faculty of Health, Camilo Jose Cela University, 28962 Villanueva de la Cañada, Spain
- Correspondence:
| | - Umut Varol
- VALTRADOFI Research Group, Department of Physiotherapy, Faculty of Health, Camilo Jose Cela University, 28962 Villanueva de la Cañada, Spain
- Escuela Internacional de Doctorado, Universidad Rey Juan Carlos, 28922 Alcorcón, Spain
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Rhim HC, Tenforde A, Mohr L, Hollander K, Vogt L, Groneberg DA, Wilke J. Association between physical activity and musculoskeletal pain: an analysis of international data from the ASAP survey. BMJ Open 2022; 12:e059525. [PMID: 36123076 PMCID: PMC9486184 DOI: 10.1136/bmjopen-2021-059525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
OBJECTIVE To explore the association of physical activity (PA) with musculoskeletal pain (MSK pain). DESIGN Cross-sectional study SETTING: 14 countries (Argentina, Australia, Austria, Brazil, Chile, France, Germany, Italy, the Netherlands, Singapore, South Africa, Spain, Switzerland and the USA). PARTICIPANTS Individuals aged 18 or older. PRIMARY AND SECONDARY OUTCOME MEASURES PA volumes were assessed with an adapted version of the Nordic Physical Activity Questionnaire-short. Prevalence of MSK pain was captured by means of a 20-item checklist of body locations. Based on the WHO recommendation on PA, participants were classified as non-compliers (0-150 min/week), compliers (150-300 min/week), double compliers (300-450 min/week), triple compliers (450-600 min/week), quadruple compliers (600-750 min/week), quintuple compliers (750-900 min/week) and top compliers (more than 900 min/week). Multivariate logistic regression was used to obtain adjusted ORs of the association between PA and MSK pain for each body location, correcting for age, sex, employment status and depression risk. RESULTS A total of 13 741 participants completed the survey. Compared with non-compliers, compliers had smaller odds of MSK pain in one location (thoracic pain, OR 0.77, 95% CI 0.64 to 0.93). Double compliance was associated with reduced pain occurrence in six locations (elbow, OR 0.70, 95% CI 0.50 to 0.98; forearm, OR 0.63, 95% CI 0.40 to 0.99; wrist, OR 0.74, 95% CI 0.57 to 0.98; hand, OR 0.57, 95% CI 0.40 to 0.79; fingers, OR 0.72, 95% CI 0.52 to 0.99; abdomen, OR 0.61, 95% CI 0.41 to 0.91). Triple to top compliance was also linked with lower odds of MSK pain (five locations in triple compliance, three in quadruple compliance, two in quintuple compliance, three in top compliance), but, at the same time, presented increased odds of MSK pain in some of the other locations. CONCLUSION A dose of 300-450 min WHO-equivalent PA/week was associated with lower odds of MSK pain in six body locations. On the other hand, excessive doses of PA were associated with higher odds of pain in certain body locations.
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Affiliation(s)
- Hye Chang Rhim
- Department of Physical Medicine and Rehabilitation, Harvard Medical School, Boston, Massachusetts, USA
- Spaulding Rehabilitation Hospital, Charlestown, Massachusetts, USA
| | - Adam Tenforde
- Department of Physical Medicine and Rehabilitation, Harvard Medical School, Boston, Massachusetts, USA
- Spaulding Rehabilitation Hospital, Charlestown, Massachusetts, USA
| | - Lisa Mohr
- Department of Sports Medicine and Exercise Physiology, Goethe University Frankfurt, Frankfurt am Main, Germany
| | - Karsten Hollander
- Institute of Interdisciplinary Exercise Science and Sports Medicine, MSH Medical School Hamburg, Hamburg, Germany
| | - Lutz Vogt
- Department of Sports Medicine and Exercise Physiology, Goethe University Frankfurt, Frankfurt am Main, Germany
| | - David A Groneberg
- Institute of Occupational Medicine, Social Medicine and Environmental Medicine, Goethe University Frankfurt, Frankfurt am Main, Germany
| | - Jan Wilke
- Institute of Occupational Medicine, Social Medicine and Environmental Medicine, Goethe University Frankfurt, Frankfurt am Main, Germany
- Department of Movement Sciences, University of Klagenfurt, Klagenfurt am Wörthersee, Austria
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Peterson JA, Lohman C, Larson RD, Bemben MG, Black CD. Body Composition does not influence Conditioned Pain Modulation and Exercise Induced Hyperalgesia in Healthy Males and Females. Eur J Pain 2022; 26:1800-1810. [PMID: 35802068 DOI: 10.1002/ejp.2005] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 06/09/2022] [Accepted: 07/03/2022] [Indexed: 11/07/2022]
Abstract
BACKGROUND Obese individuals report a higher susceptibility to chronic pain. Females are more likely to have chronic pain and excess adipose tissue. Chronic pain is associated with dysfunctional pain modulatory mechanisms. Body composition differences may be associated with pain modulation differences in males and females. The purpose of this study was to investigate body composition (lean vs fat mass) differences and pain modulatory functioning in healthy males and females. METHODS Pressure pain thresholds (PPT) of 96 participants (47M; 49F) were assessed in both arms and legs before and after a double footed ice bath (2°C) for 1min and an isometric knee extension, time to failure task. The difference between post and pre measures was defined conditioned pain modulatory (CPM) response (ice bath) and exercise induced hypoalgesia (EIH) response. Whole body and site-specific fat and lean tissue were assessed via DXA scan. RESULTS Sex differences were found in whole body lean mass (61.5±6.7kg vs 41.2±5.4kg; P<0.001) but not fat mass amount (17.2±10.5kg vs 21.0±9.7kg; P=0.068). No effect of sex was found between limb CPM (P=0.237) and limb EIH (P=0.512). When controlling for lean mass there was no significant effect of sex on CPM (P=0.732) or EIH (P=0.474) response. Similar findings were found for fat mass. CONCLUSION The lack of difference suggests that males and females have similar modulatory functioning. It appears that in healthy adults free from chronic pain, neither fat mass nor lean mass has an influence on endogenous pain modulatory function.
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Affiliation(s)
- Jessica A Peterson
- Department of Health and Exercise Science, University of Oklahoma, Norman, OK.,Department of Community Dentistry and Behavioral Science, University of Florida Gainesville, FL
| | - Cameron Lohman
- Department of Health and Exercise Science, University of Oklahoma, Norman, OK
| | - Rebecca D Larson
- Department of Health and Exercise Science, University of Oklahoma, Norman, OK
| | - Michael G Bemben
- Department of Health and Exercise Science, University of Oklahoma, Norman, OK
| | - Christopher D Black
- Department of Health and Exercise Science, University of Oklahoma, Norman, OK
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Baehr LA, Frey-Law LA, Finley M. Quantitative Sensory Changes Related to Physical Activity in Adult Populations: A Scoping Review. Am J Phys Med Rehabil 2022; 101:708-713. [PMID: 34508062 DOI: 10.1097/phm.0000000000001883] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
ABSTRACT Exercise-induced hypoalgesia related to physical activity produces sensory adaptations, but its mechanism remains unclear. Quantitative sensory testing is an effective measurement tool to identify sensory changes, but the extent of evidence linking quantitative sensory testing and physical activity has not been explored. The purpose of this scoping review is to synthesize the evidence on using quantitative sensory testing to evaluate psychophysical changes related to physical activity in adult populations. The researchers developed a comprehensive search strategy with a Health Sciences Librarian using the Arksey and O'Malley Methodological framework. Four databases (Medline [PubMed], CINAHL, Web of Science, and Embase) were searched for peer-reviewed primary research. After 2790 articles were evaluated, 196 studies were included for final review. More than half of studies used randomized controlled trial design (50.5%), followed by quasi-experimental (24.0%) and observational (25.5%) strategies. Healthy adults (42.9%) and individuals with chronic health conditions (20.9%) were examined most frequently. Aerobic (27.6%) and strength (21.4%) physical activity types were most commonly studied. Static quantitative sensory testing measures of pressure pain threshold (84%) were used most frequently. The findings of this scoping review demonstrate available evidence for quantitative sensory testing as a measurement tool of neuromodulation related to physical activity in adult populations. A systematic review is warranted to examine outcomes and recommendations.
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Affiliation(s)
- Laura A Baehr
- From the Physical Therapy and Rehabilitation Sciences Department, Drexel University, Philadelphia, Pennsylvania (LAB, MF); and Physical Therapy and Rehabilitation Science, University of Iowa, Iowa City, Iowa (LAF-L)
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Peterson JA, Bemben MG, Larson RD, Pereira H, Crowson HM, Black CD. Symptomatic but not Asymptomatic COVID-19 Impairs Conditioned Pain Modulation in Young Adults. THE JOURNAL OF PAIN 2022; 23:1923-1932. [PMID: 35872293 PMCID: PMC9303070 DOI: 10.1016/j.jpain.2022.06.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 06/07/2022] [Accepted: 06/15/2022] [Indexed: 01/08/2023]
Abstract
Pain is a common symptom reported in COVID-19 patients. Impaired endogenous pain-modulatory mechanisms such as conditioned pain modulation (CPM), and exercise-induced hypoalgesia (EIH) have been found in chronic pain conditions but is often overlooked in acute conditions that evoke painful symptoms, such as COVID-19. The purpose was to compare pressure-pain sensitivity, CPM, and EIH function among individuals who previously had COVID-19, both symptomatically and asymptomatically, and a healthy control group. Pressure pain thresholds of 59 participants were assessed in the forearm and leg using a pressure algometer before and after 1) submersion of their dominant foot in cold water (2°C) for 1min; and 2) isometric knee extension performed to task-failure at 25% of their maximal contraction. The CPM response was attenuated in individuals who were infected with symptomatic COVID-19 (N = 26) compared to asymptomatic COVID-19 (N = 13) in arm (-1.0% ± 20.3 vs 33.3% ± 26.2; P < .001) and leg (12.8% ± 22.0 vs 33.8% ± 28.2; P = .014) and compared to controls (N = 20) in arm only (-1.0% ± 26.2 vs 23.4% ± 28.2; P = .004). The EIH response was not different between groups. CPM was impaired in individuals who had symptomatic COVID-19, which may have long-term implications on pain modulation. Perspective This study reveals that CPM was impaired in individuals who had symptomatic COVID-19 during the first wave of COVID-19, pre vaccine. These findings present a preliminary motive to study the long-term implications of COVID-19 and its effects on pain modulation.
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Impaired conditioned pain modulation was restored after a single exercise session in individuals with and without fibromyalgia. Pain Rep 2022; 7:e996. [PMID: 35399187 PMCID: PMC8984585 DOI: 10.1097/pr9.0000000000000996] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 01/11/2022] [Accepted: 02/03/2022] [Indexed: 11/26/2022] Open
Abstract
Supplemental Digital Content is Available in the Text. Submaximal isometric exercise improved impaired conditioned pain modulation acutely in individuals with and without fibromyalgia, regardless of health status. Introduction: Exercise is an effective nonpharmacological intervention for individuals with fibromyalgia syndrome (FMS); however, considerable variability is observed in their pain response after a single exercise session that could be due to differences in baseline central pain inhibition (ie, conditioned pain modulation [CPM]). Objectives: This study examined the effect of isometric exercise on CPM in people with FMS and control participants. A subaim was to identify whether pain inhibition after exercise was due to differences in baseline CPM. Methods: Twenty-one individuals with FMS (50.5 ± 14.9 years) and 22 age-matched and sex-matched controls (49.2 ± 13.3 years) participated in a familiarization session and 2 randomized experimental sessions: (1) low-intensity isometric exercise and (2) quiet rest control. Conditioned pain modulation was measured before and after each experimental session. In addition, body composition and physical activity levels were collected to determine potential group differences. Results: Both groups had comparable body composition and physical activity levels and reported similar exercise-induced hypoalgesia (increase in pressure pain thresholds) at the exercising muscle (quadriceps muscle) and systemically (deltoid muscle). Both groups had a decrease in CPM after exercise and quiet rest; however, in both FMS and control participants with impaired baseline CPM, there was an increase in CPM at the deltoid muscle after exercise. Conclusion: In persons with low CPM, irrespective of health status, isometric exercise enhanced CPM at a site distal from the exercising muscle. Our results support the use of isometric exercise when initiating an exercise program especially for individuals with impaired CPM.
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The effect-modification of physical activity on the association of pain with impaired physical function in aging adults. Exp Gerontol 2022; 163:111791. [PMID: 35367593 DOI: 10.1016/j.exger.2022.111791] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 03/22/2022] [Accepted: 03/28/2022] [Indexed: 11/20/2022]
Abstract
OBJECTIVES Pain is prevalent among older adults and may result in impairment in physical function. However, little is known about the effect-modification of this relationship by physical activity (PA) participation. This large and representative study sought to estimate the effect of pain on physical function among older adults in Ghana and evaluate whether PA modifies this association. METHODS Data came from 1201 adults aged ≥50 years participating in the AgeHeaPsyWel-HeaSeeB Study in Ghana. Pain constructs were defined using the Medical Outcomes Study Short Form-36 (MOS SF-36). PA was assessed using the International Physical Activity Questionnaire short form (IPAQ-SF) and physical function impairment was measured by seven-item domains based on the activities of daily living (ADL) and instrumental ADL (IADL). Adjusted hierarchical OLS regressions were fitted to estimate the direct and moderating relationships between pain facets, PA, and impaired physical function. RESULTS The relationships of pain severity (β = 0.348, p < .001), and pain interference (β = 0.424, p < .001) with impaired physical function were robust after full adjustment for confounding variables. Persons with pain experiences had significantly increased impaired physical function risks. PA significantly modified the association between pain severity (β = -0.232, p < .001) and pain interference (β = -0.143, p < .001) with impaired physical function. CONCLUSIONS Our data indicate that the relationships of pain with physical function impairment are modified by PA intensity. Future studies are warranted to understand the indirect effect of pain on functional limitations and how PA promotion could manage pain and improve functional ability in aging adults.
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Associations between pain and physical activity among older adults. PLoS One 2022; 17:e0263356. [PMID: 35089966 PMCID: PMC8797193 DOI: 10.1371/journal.pone.0263356] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Accepted: 01/17/2022] [Indexed: 11/30/2022] Open
Abstract
Objectives Chronic pain is a significant societal problem and pain complaints are one of the main causes of work absenteeism and emergency room visits. Physical activity has been associated with reduced risk of suffering from musculoskeletal pain complaints, but the exact relationship in an older adult sample is not known. Methods Participants self-reported their physical activity level and whether they were often troubled by bone, joint, or muscle pain. Logistic regression analyses revealed the nature of the relationship between musculoskeletal pain and physical activity cross-sectionally and longitudinally over the course of 10 years. Data were taken from the English Longitudinal Study of Ageing, comprising of 5802 individuals residing in England aged 50 or older. Results Only high levels of physical activity were associated with a reduced risk of suffering from musculoskeletal pain compared to a sedentary lifestyle longitudinally. In addition, having low wealth, being female, and being overweight or obese were found to be risk factors for suffering from musculoskeletal pain. Conclusions The development of interventions aimed at alleviating and preventing musculoskeletal pain complaints might benefit from incorporating physical activity programs, weight loss, and aspects addressing wealth inequality to maximise their efficacy.
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Wang Y, Wu Z, Wang D, Huang C, Xu J, Liu C, Yang C. Muscle-brain communication in pain: The key role of myokines. Brain Res Bull 2021; 179:25-35. [PMID: 34871710 DOI: 10.1016/j.brainresbull.2021.11.017] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2021] [Revised: 11/24/2021] [Accepted: 11/28/2021] [Indexed: 12/24/2022]
Abstract
Pain is the most common reason for a physician visit, which accounts for a considerable proportion of the global burden of disease and greatly affects patients' quality of life. Therefore, there is an urgent need to identify new therapeutic targets involved in pain. Exercise-induced hypoalgesia (EIH) is a well known phenomenon observed worldwide. However, the available evidence demonstrates that the mechanisms of EIH remain unclear. One of the most accepted hypotheses has been the activation of several endogenous systems in the brain. Recently, the concept that the muscle acts as a secretory organ has attracted increasing attention. Proteins secreted by the muscle are called myokines, playing a critical role in communicating with other organs, such as the brain. This review will focus on several myokines and discuss their roles in EIH.
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Affiliation(s)
- Yuanyuan Wang
- Department of Anesthesiology and Perioperative Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Zifeng Wu
- Department of Anesthesiology and Perioperative Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Di Wang
- Department of Anesthesiology and Perioperative Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Chaoli Huang
- Department of Anesthesiology and Perioperative Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China; State Key Laboratory of Pharmaceutical Biotechnology, Model Animal Research Center, Nanjing University, Nanjing 210061, China
| | - Jiali Xu
- Department of Anesthesiology and Perioperative Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Cunming Liu
- Department of Anesthesiology and Perioperative Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China.
| | - Chun Yang
- Department of Anesthesiology and Perioperative Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China.
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Naugle KM, Corrona S, Smith JA, Nguyen T, Saxe J, White FA. Physical activity behavior in the first month after mild traumatic brain injury is associated with physiological and psychological risk factors for chronic pain. Pain Rep 2021; 6:e969. [PMID: 34765852 PMCID: PMC8575415 DOI: 10.1097/pr9.0000000000000969] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 08/04/2021] [Accepted: 09/11/2021] [Indexed: 02/01/2023] Open
Abstract
OBJECTIVE The purpose of this study was to determine whether self-reported physical activity (PA) in the first month after mild traumatic brain injury (mTBI) predicts endogenous pain modulatory function and pain catastrophizing at 1 to 2 weeks and 1 month after injury in patients with mTBI. METHODS Patients with mild traumatic brain injury completed study sessions at 1 to 2 weeks and 1 month after injury. Assessments included a headache survey, Pain Catastrophizing Scale, International Physical Activity Questionnaire-Short Form, and several quantitative sensory tests to measure endogenous pain modulatory function including conditioned pain modulation (CPM), temporal summation, and pressure pain thresholds of the head. Hierarchical linear regressions determined the relationship between the PA variables (predictors) and pain catastrophizing and pain modulation variables (dependent variables) cross-sectionally and longitudinally, while controlling for potential covariates. RESULTS In separate hierarchical regression models, moderate PA, walking, and total PA at 1 to 2 weeks after injury predicted pain inhibition on the CPM test at 1 month, after controlling for significant covariates. In addition, a separate regression revealed that minutes sitting at 1 month predicted CPM at 1 month. Regarding predicting pain catastrophizing, the regression results showed that sitting at 1 to 2 weeks after injury significantly predicted pain catastrophizing at 1 month after injury. CONCLUSION Greater self-reported PA, especially moderate PA, 1 to 2 weeks after injury longitudinally predicted greater pain inhibitory capacity on the CPM test at 1 month after injury in patients with mTBI. In addition, greater sedentary behavior was associated with worse pain inhibition on the CPM test and greater pain catastrophizing at 1 month after injury.
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Affiliation(s)
- Kelly M. Naugle
- Department of Kinesiology, School of Health and Human Sciences, Indiana University Purdue University Indianapolis, Indianapolis, IN, USA
| | - Sam Corrona
- Department of Kinesiology, School of Health and Human Sciences, Indiana University Purdue University Indianapolis, Indianapolis, IN, USA
| | - Jared A. Smith
- Medical Scientist Training Program, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Tyler Nguyen
- Department of Anesthesia, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Jonathan Saxe
- Trauma Department, Ascension St. Vincent Indianapolis Hospital, Indianapolis, IN, USA
| | - Fletcher A. White
- Department of Anesthesia, Indiana University School of Medicine, Indianapolis, IN, USA
- Richard L. Roudebush Veterans Medical Center, Indianapolis, IN, USA
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Rhudy JL, Kuhn BL, Demuth MJ, Huber FA, Hellman N, Toledo TA, Lannon EW, Palit S, Payne MF, Sturycz CA, Kell PA, Guereca YM, Street EN, Shadlow JO. Are Cardiometabolic Markers of Allostatic Load Associated With Pronociceptive Processes in Native Americans?: A Structural Equation Modeling Analysis From the Oklahoma Study of Native American Pain Risk. THE JOURNAL OF PAIN 2021; 22:1429-1451. [PMID: 34033965 PMCID: PMC8578174 DOI: 10.1016/j.jpain.2021.04.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 04/07/2021] [Accepted: 04/26/2021] [Indexed: 10/21/2022]
Abstract
Native Americans (NAs) experience higher rates of chronic pain than the general U.S. population, but the risk factors for this pain disparity are unknown. NAs also experience high rates of stressors and cardiovascular and metabolic health disparities (eg, diabetes, cardiovascular disease) consistent with allostatic load (stress-related wear-and-tear on homeostatic systems). Given that allostatic load is associated with chronic pain, then allostatic load may contribute to their pain disparity. Data from 302 healthy, pain-free men and women (153 NAs, 149 non-Hispanic Whites [NHW]) were analyzed using structural equation modeling to determine whether cardiometabolic allostatic load (body mass index, blood pressure, heart rate variability) mediated the relationship between NA ethnicity and experimental measures of pronociceptive processes: temporal summation of pain (TS-pain) and the nociceptive flexion reflex (TS-NFR), conditioned pain modulation of pain (CPM-pain) and NFR (CPM-NFR), and pain tolerance. Results indicated that NAs experienced greater cardiometabolic allostatic load that was related to enhanced TS-NFR and impaired CPM-NFR. Cardiometabolic allostatic load was unrelated to measures of pain perception (CPM-pain, TS-pain, pain sensitivity). This suggests cardiometabolic allostatic load may promote spinal sensitization in healthy NAs, that is not concomitant with pain sensitization, perhaps representing a unique pain risk phenotype in NAs. PERSPECTIVE: Healthy, pain-free Native Americans experienced greater cardiometabolic allostatic load that was associated with a pronociceptive pain phenotype indicative of latent spinal sensitization (ie, spinal sensitization not associated with hyperalgesia). This latent spinal sensitization could represent a pain risk phenotype for this population.
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Affiliation(s)
- Jamie L Rhudy
- Department of Psychology, The University of Tulsa, Tulsa, Oklahoma.
| | - Bethany L Kuhn
- Department of Psychology, The University of Tulsa, Tulsa, Oklahoma
| | - Mara J Demuth
- Department of Psychology, The University of Tulsa, Tulsa, Oklahoma
| | | | - Natalie Hellman
- Department of Psychology, The University of Tulsa, Tulsa, Oklahoma
| | - Tyler A Toledo
- Department of Psychology, The University of Tulsa, Tulsa, Oklahoma
| | - Edward W Lannon
- Department of Psychology, The University of Tulsa, Tulsa, Oklahoma
| | - Shreela Palit
- Department of Psychology, The University of Tulsa, Tulsa, Oklahoma; Pain Research and Intervention Center of Excellence, University of Florida, Gainesville, Florida
| | - Michael F Payne
- Department of Psychology, The University of Tulsa, Tulsa, Oklahoma; Cincinnati Children's Hospital Medical Center, Department of Pediatrics, Division of Behavioral Medicine & Clinical Psychology, Cincinnati, Ohio
| | | | - Parker A Kell
- Department of Psychology, The University of Tulsa, Tulsa, Oklahoma
| | - Yvette M Guereca
- Department of Psychology, The University of Tulsa, Tulsa, Oklahoma
| | - Erin N Street
- Department of Psychology, The University of Tulsa, Tulsa, Oklahoma
| | - Joanna O Shadlow
- Department of Psychology, The University of Tulsa, Tulsa, Oklahoma
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Wan R, Wang Y, Feng B, Jiang X, Xu Y, Zhang Z, Liu Y, Wang Y. Effect of High-definition Transcranial Direct Current Stimulation on Conditioned Pain Modulation in Healthy Adults: A Crossover Randomized Controlled Trial. Neuroscience 2021; 479:60-69. [PMID: 34710538 DOI: 10.1016/j.neuroscience.2021.10.019] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 10/16/2021] [Accepted: 10/18/2021] [Indexed: 01/07/2023]
Abstract
The disorder of the conditioned pain modulation (CPM) system is one of the main causes of pain perception in individuals. High-definition transcranial direct current stimulation (HD-tDCS) targeting specific brain areas was indicated to have an analgesic effect possibly by activating the endogenous pain inhibition pathway evident in CPM. However, discrepancies were found in previous limited studies of varied homogeneity and quality. Therefore, the present study applied 2 mA HD-tDCS (20 min) in the left primary motor cortex (M1) among 35 healthy adults with a blinded crossover study design, to investigate its effectiveness on optimizing the analgesic effect in healthy individuals through assessing changes of the CPM. The univariate and multivariate general linear models were used to evaluate the intervention effect between-group on the Δ-value (after-intervention minus before-intervention) during CPM (primary outcome), pressure pain threshold (PPT), and cold pressure threshold (CPT) (secondary outcome), respectively. A significant between-group difference in Δ-CPM was found for active stimulation. HD-tDCS significantly improved the analgesic efficiency of Δ-CPM, compared with the sham control, after adjusting the confounding factors including age, gender, psychological status, as well as the sequence effect. The changes of CPM were positively correlated with the total physical activity volume. In conclusion, our findings provide evidence support to the effectiveness of HD-tDCS on endogenous pain modulation among healthy adults. Further studies are required to explore the analgesic effect of tDCS among patients with chronic pain, thereby facilitating optimal chronic pain management.
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Affiliation(s)
- Ruihan Wan
- Department of Rehabilitation Medicine, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, China; Department of Sport Rehabilitation, Shenyang Sport University, Shenyang, China
| | - Yafei Wang
- Department of Rehabilitation Medicine, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Beibei Feng
- Department of Rehabilitation Medicine, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, China; Department of Orthopedics & Traumatology, The University of Hong Kong, Hong Kong Special Administrative Region
| | - Xue Jiang
- Department of Rehabilitation Medicine, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, China; Department of Sport Rehabilitation, Shanghai University of Sport, Shanghai, China
| | - Yangfan Xu
- Department of Rehabilitation Medicine, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Ziping Zhang
- Department of Rehabilitation Medicine, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Ying Liu
- Department of Kinesiology, California State University, Northridge, United States
| | - Yuling Wang
- Department of Rehabilitation Medicine, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.
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Zheng K, Chen C, Yang S, Wang X. Aerobic Exercise Attenuates Pain Sensitivity: An Event-Related Potential Study. Front Neurosci 2021; 15:735470. [PMID: 34630022 PMCID: PMC8494006 DOI: 10.3389/fnins.2021.735470] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Accepted: 08/27/2021] [Indexed: 11/13/2022] Open
Abstract
In this study, electroencephalography (EEG) was utilized to explore the neurophysiological mechanisms of aerobic exercise-induced hypoalgesia (EIH) and provide a theoretical basis for the application of aerobic exercise in pain assessment and treatment. Forty-five healthy subjects were randomly divided into moderate-intensity aerobic exercise [70% heart rate reserve (HRR)], low-intensity aerobic exercise (50% HRR), or control groups (sitting). Aerobic exercise was performed with cycling. Pressure pain threshold (PPT), heat pain threshold (HPT), event-related potential (ERP) induced by contact heat stimulus and pain scoring were measured before and after the intervention. We found that moderate-intensity aerobic exercise can increase the PPT (rectus femoris: t = -2.71, p = 0.017; tibialis anterior muscle: t = -2.36, p = 0.033) and HPT (tibialis anterior muscle: t = -2.219, p = 0.044) of proximal intervention sites rather than distal sites, and decreased pain scorings of contact heat stimulus. After moderate-intensity aerobic exercise, alpha oscillation power reflecting the central descending inhibitory function was enhanced (t = -2.31, p < 0.05). Low-intensity aerobic exercise mainly reduced the pain unpleasantness rating (Block 1: t = 2.415, p = 0.030; Block 2: t = 3.287, p = 0.005; Block 4: t = 2.646, p = 0.019; Block 5: t = 2.567, p = 0.022). Aerobic exercise had an overall EIH effect. Its hypoalgesic effect was related to exercise intensity and affected by the site and type of pain stimulus. Moderate-intensity aerobic exercise effectively reduced the sensitivity to various painful stimuli, and low-intensity aerobic exercise selectively inhibited the negative emotional pain response. The hypoalgesic mechanism of aerobic exercise involves the enhancement of the central descending inhibitory function.
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Affiliation(s)
- Kangyong Zheng
- Department of Sport Rehabilitation, Shanghai University of Sport, Shanghai, China
| | - Changcheng Chen
- Department of Rehabilitation Medicine, Qingtian People's Hospital, Zhejiang, China
| | - Suyong Yang
- School of Psychology, Shanghai University of Sport, Shanghai, China
| | - Xueqiang Wang
- Department of Sport Rehabilitation, Shanghai University of Sport, Shanghai, China.,Department of Rehabilitation Medicine, Shanghai Shangti Orthopaedic Hospital, Shanghai, China
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The influence of sex and level of physical activity on maximum tolerance to mechanical pain. Braz J Anesthesiol 2021; 72:579-586. [PMID: 34627835 PMCID: PMC9515678 DOI: 10.1016/j.bjane.2021.09.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 08/24/2021] [Accepted: 09/11/2021] [Indexed: 11/26/2022] Open
Abstract
Background A difference in maximum tolerance to mechanical pain (MTMP) between the sexes is widely studied but there is still no consensus on whether the level of physical activity (PA) influences pain. Objectives To compare the MTMP between men and women with different levels of PA. Methods Sixty five individuals were divided in female (n = 35) and male group (n = 30). The main outcome measures were PA level and MTMP by pressure algometry. Pressure was applied three times on both sides at the following points: cervical (5th and 7th) and lumbar (3th and 5th) vertebrae; trapezius, rhomboid, gluteus, gastrocnemius, pectoralis major, tibialis anterior, and deltoid muscles, elbow, hand, knee, and ankle. Results It was observed that the PA level has little influence on the MTMP at all the assessed points and that men have greater MTMP than women. Conclusion Sex, not the PA level, influences the MTMP.
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Allison C, Korey L, John Z S. A novel computational technique for the quantification of temporal summation in healthy individuals. Musculoskelet Sci Pract 2021; 54:102400. [PMID: 34022750 DOI: 10.1016/j.msksp.2021.102400] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 04/12/2021] [Accepted: 05/10/2021] [Indexed: 11/29/2022]
Abstract
BACKGROUND The pathophysiology of chronic musculoskeletal pain is linked to the neurophysiologic condition known as central sensitization. Developing reliable, sensitive and clinically feasible techniques for quantifying central sensitization is a timely priority for advancing the field of chronic pain diagnosis and management. OBJECTIVE To compare the sensitivity of the Windup Ratio, a commonly employed Quantitative Sensory Testing (QST) technique, to a novel approach, the Sumsquare method, for detecting changes in experimentally induced central sensitization. DESIGN Individual, randomized, controlled experimental study. METHODS A total of 37 subjects assigned to experimental (N = 18) and control (N = 19) groups. Central sensitization was experimentally induced in the C5-C6 spinal segments using topical capsaicin (0.075%); controls received a non-sensitizing placebo (Lubriderm). Windup (temporal summation) was assessed using weighted pinpricks (MRC Systems, Heidelberg, Germany) applied within regions of secondary hyperalgesia surrounding the topical capsaicin. A train of 10 stimuli was applied at baseline, 10, 20 and 30 min post-topical application and participants provided numeric pain ratings after each pinprick application. Sumsquare and Windup Ratio outcomes were calculated using the pain rating data. RESULTS Sumsquare outcome was significantly increased at all time points (10, 20, 30 min) post-sensitization (p < 0.05); in contrast, no differences in Windup Ratio from baseline were observed at any time point post-sensitization (p > 0.05). CONCLUSIONS Sumsquare outcome offers greater sensitivity than Windup Ratio for detecting changes in experimentally induced central sensitization. These findings introduce a novel method for assessing changes in central sensitization in patients presenting with chronic musculoskeletal pain hypersensitivity.
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Affiliation(s)
- Clouse Allison
- Human Health and Nutritional Science, University of Guelph, Guelph, Canada
| | - Loi Korey
- Human Health and Nutritional Science, University of Guelph, Guelph, Canada
| | - Srbely John Z
- Human Health and Nutritional Science, University of Guelph, Guelph, Canada.
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