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Jafari N, Izadi F, Ebadi A, Talebian S, Dabirmoghadam P, Jordens K, Bahmani K, Van Lierde K. Comparison of Laryngeal Palpatory Scale (LPS), With Surface Electromyographic Measures in Patients with Muscle Tension Dysphonia. J Voice 2024; 38:245.e37-245.e48. [PMID: 34627703 DOI: 10.1016/j.jvoice.2021.08.021] [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: 06/28/2021] [Revised: 08/08/2021] [Accepted: 08/15/2021] [Indexed: 10/20/2022]
Abstract
OBJECTIVES The aim of this study was to examine the laryngeal palpatory scale (LPS) to ascertain possible correlation with neck surface electromyography (sEMG). METHODS Two otolaryngologists and one certified speech-language pathologist assessed 21 participants (seven women and 14 men; with a mean age of 42.8 years; ranged: 21 to 70 years) with muscle tension dysphonia (MTD) diagnosed with the current version of the LPS rating system. Consequently, relationships between LPS and objective measures of sEMG were evaluated using Spearman's rank correlation coefficient (r). RESULTS The results show that there was a low to moderate between correlations, (statistically positive and significant in 10 correlations among the examined items/states). CONCLUSIONS In conclusion, low-moderate positive correlations between sEMG and LPS ratings were found with particular strength for LPS ratings of tightness and ratings made during dynamic tasks. Further investigations can provide useful evidence for researchers and clinicians to document treatment outcomes by using LPS and sEMG in patients with MTD and leading to the more standardized care and improved information about patient progress.
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Affiliation(s)
- Narges Jafari
- Centre for Speech and Language Sciences (CESLAS), Department of rehabilitation Sciences, University Ghent, Ghent, Belgium.
| | - Farzad Izadi
- ENT and Head and Neck Research Center and Department, Iran University of Medical Science, Tehran, Iran
| | - Abbas Ebadi
- Behavioral Sciences Research Center, Life Style Institute, Faculty of Nursing, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Saeed Talebian
- Department of Physiotherapy, School of Rehabilitation, Tehran University of Medical Sciences, Tehran, Iran
| | - Payman Dabirmoghadam
- Otolaryngology Research Center, Tehran University of Medical Science, Tehran, Iran
| | - Karolien Jordens
- Institute of Cellular Medicine, Faculty of Medical Sciences, Newcastle University Newcastle, United Kingdom
| | - Kamran Bahmani
- Department of Audiology, School of Rehabilitation, Tehran University of Medical Sciences, Tehran, Iran
| | - Kristiane Van Lierde
- Centre for Speech and Language Sciences (CESLAS), Department of rehabilitation Sciences, University Ghent, Ghent, Belgium; Department of Speech-Language Pathology and Audiology, University of Pretoria, Pretoria, South-Africa
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Mendes Fernandes T, Méndez-Sánchez R, Puente-González AS, Martín-Vallejo FJ, Falla D, Vila-Chã C. A randomized controlled trial on the effects of "Global Postural Re-education" versus neck specific exercise on pain, disability, postural control, and neuromuscular features in women with chronic non-specific neck pain. Eur J Phys Rehabil Med 2023; 59:42-53. [PMID: 36598342 PMCID: PMC10035445 DOI: 10.23736/s1973-9087.22.07554-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
BACKGROUND Neck pain is associated with decreased health-related quality of life, decreased work productivity, and increased visits to health care providers. AIM The aim of this study was to assess the effectiveness of "Global Postural Re-education" (GPR) versus a neck specific exercise (SE) program on neck pain, disability, cervical range of movement, postural stability, and activity of the superficial cervical flexor muscles. DESIGN A parallel-group and single-blinded clinical trial. SETTING Community interventions. POPULATION Fifty women with non-specific chronic neck pain (NSCNP). METHODS Participants were randomly assigned to one of the two intervention groups (GPR [N.=25] or SE [N.=25]). Both interventions consisted of eight sessions of ~40 minutes duration, performed twice a week, for four weeks. Outcomes included neck pain intensity and disability, cervical range of motion (CROM), postural sway, and activity of the superficial neck flexor muscles during a cranio-cervical flexion test (CCFT). All outcomes were assessed twice before the intervention and immediately following eight treatment sessions over four weeks. RESULTS Both interventions were equally effective in reducing neck pain (P<0.001, ŋp2=0.770) and disability (P<0.001, ŋp2=0.306), improving neck mobility (P<0.001, 0.385≤ŋp2≤0.623, for all measurements) and decreasing the activity of the superficial cervical flexor muscles (P>0.001). Neither intervention altered postural sway. CONCLUSIONS Our results revealed that GPR and SE induced significant positive results in all measures apart from postural stability but with no difference between the interventions. CLINICAL REHABILITATION IMPACT "Global Postural Re-education" (GPR) and neck SE interventions are equally effective in reducing neck pain and disability, and improving neck mobility in women with NSCNP. Overall, this study indicates that GPR and SE interventions can be used to effectively manage patients with NSCNP.
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Affiliation(s)
- Tânia Mendes Fernandes
- Centro EMA, Guarda, Portugal
- Department of Nursing and Physical Therapy, University of Salamanca, Salamanca, Spain
| | - Roberto Méndez-Sánchez
- Department of Nursing and Physical Therapy, University of Salamanca, Salamanca, Spain
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
| | - Ana S Puente-González
- Department of Nursing and Physical Therapy, University of Salamanca, Salamanca, Spain
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
| | - Francisco J Martín-Vallejo
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
- Department of Statistics, Faculty of Medicine, University of Salamanca, Salamanca, Spain
| | - Deborah Falla
- Center of Precision Rehabilitation for Spinal Pain (CPR Spine), School of Sport, Exercise and Rehabilitation Sciences, University of Birmingham, Edgbaston, Birmingham, UK
| | - Carolina Vila-Chã
- Sports Department, Polytechnic Institute of Guarda, Guarda, Portugal -
- Research Center in Sports Sciences, Health and Human Development (CIDESD), Vila Real, Portugal
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Experimental Analysis of the Use of Cranial Electromyography in Athletes and Clinical Implications. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19137975. [PMID: 35805630 PMCID: PMC9266171 DOI: 10.3390/ijerph19137975] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 06/23/2022] [Accepted: 06/26/2022] [Indexed: 02/04/2023]
Abstract
Background: Cranial surface electromyography is assumed to analyze the correlation between the stomatognathic apparatus and the muscular system and its implications on the physical status of professional athletes. The purpose of this paper is to evaluate surface cranial electromyography as an aid in the diagnosis and treatment of occlusal and muscular disorders in professional athletes. Methods: A sample of 25 athletes (mean age 23 years, 20 men and 5 women) underwent electromyographic recording; among them, 13 had a sports injury condition (symptomatic athletes), while 12 were in perfect physical condition (asymptomatic athletes). At odontostomatological examination, 6 showed cranio-mandibular disorders (dysfunctional athletes), while 19 showed no disorders (functional athletes). The treatment plan to resolve the symptoms of the dysfunctional athletes was chosen based on the electromyographic data. One month after the start of therapy with an occlusal splint, a follow-up was performed, and the results were compared with the initial data. Results: Statistical analysis showed that the chosen therapy following the use of electromyography was effective in 72% of cases, while 28% of patients did not respond to therapy (p = 0.028). Conclusions: The use of cranial electromyography in competitive athletes is a valuable tool in therapeutic choice aimed at balancing occlusal loads and improving the patient’s global tonic postural attitude, resulting in positive feedback in the qualitative assessment of sports performance.
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Mendes-Fernandes T, Puente-González AS, Márquez-Vera MA, Vila-Chã C, Méndez-Sánchez R. Effects of Global Postural Reeducation versus Specific Therapeutic Neck Exercises on Pain, Disability, Postural Control, and Neuromuscular Efficiency in Women with Chronic Nonspecific Neck Pain: Study Protocol for a Randomized, Parallel, Clinical Trial. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph182010704. [PMID: 34682453 PMCID: PMC8535440 DOI: 10.3390/ijerph182010704] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 10/02/2021] [Accepted: 10/08/2021] [Indexed: 12/15/2022]
Abstract
Background: Chronic nonspecific neck pain is the most frequent form of neck pain. It is more prevalent in women, and a costly public health issue. It is commonly associated with biomechanical, functional, proprioceptive, and postural impairments. The aim of this trial is to compare the effects of global postural exercises versus specific therapeutic exercises on neck pain, disability, mobility, pressure pain threshold, kinesiophobia, pain catastrophizing, postural control, and neuromuscular efficiency in women with chronic nonspecific neck pain. Methods and analysis: This study is a randomized, parallel-group and single blinded clinical trial. Sixty-two women with nonspecific chronic neck pain were recruited from the community of Guarda, Portugal, and randomly assigned to one of two intervention groups: (1) global postural reeducation (GPR group), (2) specific therapeutic exercises (STE group). The intervention was carried out over 4 weeks, with two sessions per week (eight sessions), and applied by a physiotherapist and paired with a daily individual at-home-exercise program. Primary outcomes are neck pain intensity and disability (Numerical Pain Rating Scale, Neck Disability Index). Secondary outcomes are cervical mobility and pressure pain threshold (CROM, algometry), attitude to pain (kinesiophobia, pain catastrophizing), standing postural control (Center of Pressure (COP) displacements), and neuromuscular efficiency (electromyography). There are four points of evaluation where the outcomes were assessed twice before the intervention, 1 week apart, and the two post-intervention assessments will be carried out after four and eight sessions. The objective was to increase scientific knowledge of different exercise modalities, such as global postural reeducation, in musculoskeletal disorders. Trial registration: ClínicalTrials.gov (NCT04402463), prospectively registered (data 22 May 2020).
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Affiliation(s)
- Tânia Mendes-Fernandes
- Centro EMA, 6300-537 Guarda, Portugal;
- Doctoral Programme in Health, Disability, Dependency and Welfare, University of Salamanca, 37007 Salamanca, Spain;
| | - Ana Silvia Puente-González
- Department of Nursing and Physical Therapy, University of Salamanca, C/Donante de Sangre s/n, 37007 Salamanca, Spain;
- Institute of Biomedical Research of Salamanca (IBSAL), 37007 Salamanca, Spain
| | - Manuel Antonio Márquez-Vera
- Doctoral Programme in Health, Disability, Dependency and Welfare, University of Salamanca, 37007 Salamanca, Spain;
- Department of Nursing and Physical Therapy, University of Salamanca, C/Donante de Sangre s/n, 37007 Salamanca, Spain;
- Institute of Biomedical Research of Salamanca (IBSAL), 37007 Salamanca, Spain
- Physiotherapy Unit, Universitary Hospital of Salamanca, 37007 Salamanca, Spain
| | - Carolina Vila-Chã
- Polytechnic Institute of Guarda, 6300-559 Guarda, Portugal;
- Research Center in Sports Sciences, Health and Human Development (CIDESD), 5001-801 Vila Real, Portugal
| | - Roberto Méndez-Sánchez
- Department of Nursing and Physical Therapy, University of Salamanca, C/Donante de Sangre s/n, 37007 Salamanca, Spain;
- Institute of Biomedical Research of Salamanca (IBSAL), 37007 Salamanca, Spain
- Correspondence:
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Shousha T, Alayat M, Moustafa I. Effects of low-level laser therapy versus soft occlusive splints on mouth opening and surface electromyography in females with temporomandibular dysfunction: A randomized-controlled study. PLoS One 2021; 16:e0258063. [PMID: 34597318 PMCID: PMC8486092 DOI: 10.1371/journal.pone.0258063] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Accepted: 09/13/2021] [Indexed: 12/25/2022] Open
Abstract
Background Low level lasers have been used as an alternative pain relief therapy for muscle and joint pain, since it induces analgesic, anti-inflammatory, and biomodulation effects of the physiological cell functions. The effectiveness of low-level laser therapy in temporomandibular joint dysfunction (TMD) treatment, however, is not well established. Although Surface electromyography (sEMG) has been suggested as a complementary means in TMD diagnosis, the effect of conservative treatments on muscle activity has not yet been thoroughly correlated with (sEMG) findings. Purpose To assess the efficacy of low-level laser therapy (LLLT) as compared to occlusive splint therapy (OST) on the TMJ opening index (TOI) and sEMG of masticatory muscles. Materials and methods 112 female subjects suffering from unilateral myogenous TMD, aged 21–30 years-old, were recruited and divided into three groups: LLLT; soft occlusive splint therapy OST and a waitlist group as controls. Outcome measures TMJ opening index (TOI), Visual analogue scale (VAS), surface electromyography (sEMG). Results A significant reduction was reported in TOI, VAS and the sEMG within the LLLT and OST groups as well as significant decrease in all outcomes between groups in favor of the LLLT group (P< 0.0001). Meanwhile, there was a weak significant difference within the control group probably attributed to the analgesic. Post-hoc pairwise comparisons between groups [control vs occlusive splints, control vs low-level laser and low-level laser vs occlusive splints] revealed significant differences in the VAS and TOI [P = 0.0001; 95% CI: 0.9–2.2, 1.61–4.01, 0.65–1.96]. Conclusions Findings support an evident short term therapeutic effect of the LLLT on improving VAS, TOI and sEMG in females suffering from myogenous TMD.
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Affiliation(s)
- Tamer Shousha
- Department of Physiotherapy, College of Health Sciences, University of Sharjah, Sharjah, United Arab Emirates
- Faculty of Physical Therapy, Cairo University, Cairo, Egypt
- * E-mail:
| | - Mohamed Alayat
- Faculty of Physical Therapy, Cairo University, Cairo, Egypt
- Physical Therapy Department, Faculty of Applied Medical Sciences, Umm Al-Qura University, Mecca, KSA
| | - Ibrahim Moustafa
- Department of Physiotherapy, College of Health Sciences, University of Sharjah, Sharjah, United Arab Emirates
- Faculty of Physical Therapy, Cairo University, Cairo, Egypt
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The effects of combined sternocleidomastoid muscle stretching and massage on pain, disability, endurance, kinesiophobia, and range of motion in individuals with chronic neck pain: A randomized, single-blind study. Musculoskelet Sci Pract 2021; 55:102417. [PMID: 34147954 DOI: 10.1016/j.msksp.2021.102417] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2020] [Revised: 06/04/2021] [Accepted: 06/08/2021] [Indexed: 11/24/2022]
Abstract
BACKGROUND The effect of interventions to the Sternocleidomastoid (SCM)-muscle, as an important element of neck movement which is overactive in individuals with chronic neck pain (CNP), are unknown. OBJECTIVE The aim of the current study is to investigate the effects of SCM stretching and massage on pain, range of motion (ROM), endurance, disability, and kinesiophobia in individuals with CNP. METHODS In this study, individuals with CNP were randomized 1:1 to parallel SCM-Group (n = 30) or control group (CG) (n = 30). Conventional physiotherapy was applied to CG. In addition to the same interventions applied to the CG, classical massage and stretching exercises were applied to the SCM-muscle in the SCM-Group. Treatment sessions were administered three times each week for a total of 5 weeks. Pain, endurance, ROM, disability, and kinesiophobia were evaluated. Both prior to and immediately following the treatments. Mixed-model repeated measured ANOVAs were then employed to determine if a group*time interaction existed on the effects of the treatment on each outcome variable for each group as the between-subjects variable and time as the within-subjects variables. RESULTS Improvements in pain, disability, ROM(extension, left-lateral flexion, and right/left-rotation), and endurance were found to be greater in the SCM-Group compared to the CG (p < 0.05). Changes in flexion and right-lateral flexion ROM and kinesiophobia did not significantly differ between the groups (p > 0.05). CONCLUSION Stretching exercises and massage applied to the SCM-muscle, together with conventional physiotherapy, can reduce pain and disability, and increase ROM and endurance in individuals with CNP. This treatment may therefore be considered for use as an alternative method in treating CNP. The study was registered in ClinicalTrials.gov (NCT04345042).
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Casolo A, Nuccio S, Bazzucchi I, Felici F, Del Vecchio A. Reproducibility of muscle fibre conduction velocity during linearly increasing force contractions. J Electromyogr Kinesiol 2020; 53:102439. [PMID: 32563844 DOI: 10.1016/j.jelekin.2020.102439] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Revised: 05/14/2020] [Accepted: 06/06/2020] [Indexed: 12/13/2022] Open
Abstract
Muscle fibre conduction velocity (MFCV) is a basic physiological parameter biophysically related to the diameter of muscle fibres and properties of the sarcolemma. The aim of this study was to assess the intersession reproducibility of the relation between voluntary force and estimates of average muscle fibre conduction velocity (MFCV) from multichannel high-density surface electromyographic recordings (HDsEMG). Ten healthy men performed six linearly increasing isometric ankle dorsiflexions on two separate experimental sessions, 4 weeks apart. Each session involved the recordings of voluntary force during maximal isometric (MViF) and submaximal ramp contractions at 35-50-70% of MViF. Concurrently, the HDsEMG activity was detected from the tibialis anterior muscle and MFCV estimates were derived in 250-ms epochs. Absolute and relative reproducibility of MFCV initial value (intercept) and rate of change (regression slope) as a function of force were assessed by within-subject coefficient of correlation (CVw) and with intraclass correlation coefficient (ICC). MFCV was positively correlated with voluntary force (R2 = 0.75 ± 0.12) in all individuals and test conditions (P < 0.001). Average CVw for MFCV intercept and slope were of 2.6 ± 2.0% and 11.9 ± 3.2% and ICC values of 0.96 and 0.94, respectively. Overall, MFCV regression coefficients showed a high degree of intersession reproducibility in both absolute and relative terms. These results may have important practical implications in the tracking of training-induced neuromuscular changes and/or in the monitoring of the progress of neuromuscular disorders when a full sEMG signal decomposition is problematic or not possible.
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Affiliation(s)
- Andrea Casolo
- Department of Movement, Human and Health Sciences, University of Rome 'Foro Italico', Rome, Italy; Department of Bioengineering, Imperial College London, SW7 2AZ London, UK
| | - Stefano Nuccio
- Department of Movement, Human and Health Sciences, University of Rome 'Foro Italico', Rome, Italy; Department of Bioengineering, Imperial College London, SW7 2AZ London, UK
| | - Ilenia Bazzucchi
- Department of Movement, Human and Health Sciences, University of Rome 'Foro Italico', Rome, Italy
| | - Francesco Felici
- Department of Movement, Human and Health Sciences, University of Rome 'Foro Italico', Rome, Italy
| | - Alessandro Del Vecchio
- Department of Movement, Human and Health Sciences, University of Rome 'Foro Italico', Rome, Italy; Department of Bioengineering, Imperial College London, SW7 2AZ London, UK.
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Women and Men Use Different Strategies to Stabilize the Head in Response to Impulsive Loads: Implications for Concussion Injury Risk. J Orthop Sports Phys Ther 2019; 49:779-786. [PMID: 31092121 DOI: 10.2519/jospt.2019.8760] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND Cervical musculoskeletal and neuromuscular attributes, which may vary between men and women, influence an individual's capacity to stabilize the head. OBJECTIVES To examine sex differences in cervical musculoskeletal and neuromuscular attributes and their impact on head stability. The secondary objective was to examine the effects of anticipation and preload on head kinematics. METHODS Thirty-four (20 men, 14 women) recreationally active adult athletes completed a perturbation protocol with anticipation and preloading conditions in this descriptive cross-sectional study. We assessed the neuromuscular response of the sternocleidomastoid to perturbation and head kinematics. We measured neck girth, sternocleidomastoid physiological cross-sectional area, and isometric strength. RESULTS Women had smaller neck girth, smaller sternocleidomastoid physiological cross-sectional area, and lower isometric strength than men. Women had greater baseline electromyography (EMG) amplitude and greater peak EMG response than men. There were no sex differences in sternocleidomastoid onset latency or head kinematics. Women had a greater increase in baseline EMG amplitude after preloading and anticipated conditions. Preloading attenuated sex differences in muscle onset latency. Across the sexes, there was a significant main effect of anticipation on head kinematics. CONCLUSION Men and women used different strategies to stabilize the head, and responded differently to the preloading and anticipation conditions. J Orthop Sports Phys Ther 2019;49(11):779-786. Epub 15 May 2019. doi:10.2519/jospt.2019.8760.
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Lascurain-Aguirrebeña I, Newham DJ, Irazusta J, Seco J, Critchley DJ. Reliability of a Method to Measure Neck Surface Electromyography, Kinematics, and Pain Occurrence in Participants With Neck Pain. J Manipulative Physiol Ther 2019; 41:413-424. [PMID: 30041737 DOI: 10.1016/j.jmpt.2017.10.013] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Revised: 08/11/2017] [Accepted: 10/19/2017] [Indexed: 01/28/2023]
Abstract
OBJECTIVE To investigate the reliability of a novel method to measure neck surface electromyography (SEMG), kinematics, and pain during active movements in participants with neck pain. METHODS This test-retest study evaluated 23 participants with chronic neck pain. Each was measured twice within a single session. Three-dimensional kinematics and SEMG were recorded in 10° increments during forward and side flexion, extension, and rotation of the neck. Neck position during pain occurrence was also measured. RESULTS Intraclass correlation coefficients were >0.80 for 96% and 100% of SEMG and kinematic data, respectively. The percentage of standard error of the measurement (SEM) values were <25% for 91% of all SEMG measures; most were <15%, and some were <10%. For ranges of motion in the primary plane, percentage of SEM values were all <6% (SEM 1°-3°). Intraclass correlation coefficients for neck position during pain occurrence were all >0.60, except for right rotation (0.48) (SEM values 2°-8°). Pain occurred approximately 59% to 75% into the total range of motion and persisted to its end. CONCLUSIONS This methodology showed good reliability. It may be suitable for neck pain subclassification to evaluate the effects of treatment on pain, kinematics, and muscle activity during functional neck movements. The point of pain occurrence suggests increasing mechanical load on tissues may be one of the causative factors for movement-associated neck pain.
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Affiliation(s)
- Ion Lascurain-Aguirrebeña
- School of Population Sciences and Health Services Research, King's College London, London, United Kingdom; Department of Physiology, University of the Basque Country, Leioa, Spain.
| | - Di J Newham
- Centre of Human & Aerospace Physiological Sciences, King's College London, London, United Kingdom
| | - Jon Irazusta
- Department of Physiology, University of the Basque Country, Leioa, Spain
| | - Jesús Seco
- Institute of Biomedicine (IBIOMED), University of León, León, Spain
| | - Duncan J Critchley
- School of Population Sciences and Health Services Research, King's College London, London, United Kingdom
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Reliability of surface electromyography in estimating muscle fiber conduction velocity: A systematic review. J Electromyogr Kinesiol 2019; 48:53-68. [DOI: 10.1016/j.jelekin.2019.06.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Revised: 05/28/2019] [Accepted: 06/12/2019] [Indexed: 11/22/2022] Open
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A Device Improves Signs and Symptoms of TMD. Pain Res Manag 2019; 2019:5646143. [PMID: 31198477 PMCID: PMC6526566 DOI: 10.1155/2019/5646143] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Revised: 03/13/2019] [Accepted: 04/07/2019] [Indexed: 12/18/2022]
Abstract
Background Temporomandibular joint dysfunction (TMD) therapy remains an open challenge for modern dentistry. Herein, we propose a new neuromuscular lingual device able to reduce signs and symptoms of TMD in female patients with chronic orofacial pain. Methods 50 females with myofascial TMD according to RDC/TMD were randomly assigned to study (n = 25) and control groups (n = 25). At T0, both groups received sEMG/KNG and pain evaluation by the VAS scale. The study group received the ELIBA device (lingual elevator by Balercia) constructed under ULF-TENS (ultra-low-frequency transcoutaneous electrical nervous stimulation). Subjects were instructed to use ELIBA at least for 16 h/day. After 6 months (T1), both groups underwent to sEMG/KNG and VAS revaluation. Results T1 study group compared to controls showed a significant reduction in total (p < 0.0001) and mean (p < 0.0001) sEMG values, as well as a significant increase in both maximum vertical mouth opening (p=0.003) and maximum velocity in mouth opening (p=0.003) and closing (p < 0.0001). Interestingly, a significant reduction in pain measured by VAS (p < 0.0001) was reported. Conclusions After 6 months, the ELIBA device is able to significantly reduce TMD-associated myogenous pain and to promote the enhancement of sEMG/KNG values. Practical Implications ELIBA can be considered as a new device, potentially useful for head-neck pain relief in patients suffering from chronic TMD. In addition, its use promotes a muscles relaxation inducing freeway space increase. This characteristic makes it particularly useful for rehabilitation of patients with not enough space for construction of conventional orthotics or neuromuscular bites.
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Washino S, Mankyu H, Kanehisa H, Mayfield DL, Cresswell AG, Yoshitake Y. Effects of inspiratory muscle strength and inspiratory resistance on neck inspiratory muscle activation during controlled inspirations. Exp Physiol 2019; 104:556-567. [PMID: 30714220 DOI: 10.1113/ep087247] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Accepted: 02/01/2019] [Indexed: 11/08/2022]
Abstract
NEW FINDINGS What is the central question of this study? What factors influence the onset and magnitude of activation of the neck inspiratory muscles during inspiration? What is the main finding and its importance? Recruitment of the sternocleidomastoid and scalene muscles during inspiration, measured by means of surface EMG, was strongly correlated with maximal inspiratory pressure. This result indicates that muscle recruitment depends on the capacity of an individual to generate inspiratory pressure. Surface measurements of neck inspiratory muscle EMG activity might complement tests currently used for the screening of respiratory-related disease. ABSTRACT The aims of the present study were as follows: (i) to examine the relationship between the onset of recruitment of the neck inspiratory muscles and inspiratory muscle strength; and (ii) to clarify the effect of inspiratory resistance on neck inspiratory muscle activation during inspiration at specific flow rates and to specific lung volumes. Inspiratory muscle strength, as indicated by maximal inspiratory pressure (MIP), and peak inspiratory flow rate (PFR) were measured in healthy participants. Subsequently, participants inspired at target inspiratory flow rates between 20 and 100% of PFR as closely as possible, with and without artificial inspiratory resistance. Electromyographic activity (EMGRMS ) of the sternocleidomastoid and scalene muscles was measured from surface electrodes at each target flow rate for each 10% increment of forced vital capacity (FVC) between 20 and 50% of FVC. Recruitment onset for each muscle was determined from %PFR-EMGRMS curves at each lung volume (%FVC). Finally, linear regression analyses were performed for MIP and recruitment onset for each muscle at each %FVC. Recruitment onset during inspiration without inspiratory resistance was strongly correlated with MIP (r > 0.60, P < 0.040). Specifically, a lower MIP was associated with earlier muscle recruitment (i.e. recruitment at a lower flow rate), especially for the sternocleidomastoid muscle (r > 0.75, P < 0.005). Recruitment of both neck inspiratory muscles at a given flow rate was also earlier when inspiratory resistance was added (P = 0.002). These results indicate that the recruitment and activation of the neck inspiratory muscles depends on both inspiratory muscle strength and inspiratory resistance.
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Affiliation(s)
- Sohei Washino
- Graduate School of Physical Education, National Institute of Fitness and Sports in Kanoya, Kanoya, Kagoshima, Japan
| | - Hirotoshi Mankyu
- Department of Coaching of Sports and Budo, National Institute of Fitness and Sports in Kanoya, Kanoya, Kagoshima, Japan
| | - Hiroaki Kanehisa
- Department of Sports and Life Sciences, National Institute of Fitness and Sports in Kanoya, Kanoya, Kagoshima, Japan
| | - Dean L Mayfield
- School of Human Movement and Nutrition Sciences, The University of Queensland, Brisbane, Queensland, Australia
| | - Andrew G Cresswell
- School of Human Movement and Nutrition Sciences, The University of Queensland, Brisbane, Queensland, Australia
| | - Yasuhide Yoshitake
- Department of Sports and Life Sciences, National Institute of Fitness and Sports in Kanoya, Kanoya, Kagoshima, Japan.,School of Human Movement and Nutrition Sciences, The University of Queensland, Brisbane, Queensland, Australia.,Graduate School of Science and Technology, Shinshu University, Ueda, Nagano, Japan
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Kok LM, Schrijvers J, Fiocco M, van Royen B, Harlaar J. Differences in violin fixation force and muscle activity among violinists with and without complaints of the neck shoulder region. J Electromyogr Kinesiol 2018; 43:217-225. [PMID: 30447531 DOI: 10.1016/j.jelekin.2018.11.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Revised: 09/03/2018] [Accepted: 11/03/2018] [Indexed: 10/27/2022] Open
Abstract
PURPOSE The aim of this study is to determine the relationship between complaints of the neck and shoulder region, the jaw-shoulder violin fixation force, and the activity of the neck and shoulder muscles in violinists. METHODS In this case-control study twenty professional violinists were included, of which ten with current complaints of the neck shoulder region and ten without these complaints. A questionnaire including the DASH and NDI was used; violin fixation force and activity of the superficial neck muscles were evaluated in five playing conditions. RESULTS Each group consisted of eight female and two male violists with a mean age of 29 years. Violinists with complaints had more muscle activity of all evaluated muscles compared to violinists without complaints; complaints were significantly associated with the muscle activity of all evaluated muscles. Complaints were not significantly associated with the violin fixation force. The playing condition significantly predicted the violin fixation force and the activity of all muscles except the left mTP. CONCLUSIONS Violinists with complaints have more muscle activity of some superficial neck and shoulder muscles. Co-contraction is thought to play a relevant role in violinists with these complaints.
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Affiliation(s)
- Laura M Kok
- Leiden University Medical Center, Department of Orthopedics, the Netherlands.
| | - Jim Schrijvers
- VU University Medical Center, Department of Rehabilitation Medicine, Amsterdam Movement Sciences, the Netherlands
| | - Marta Fiocco
- Department of Medical Statistics and Bioinformatics, Leiden University Medical Center Leiden, the Netherlands; Mathematical Institute, Leiden University, the Netherlands
| | - Barend van Royen
- VU University Medical Center, Department of Orthopedics, Amsterdam Movement Sciences, the Netherlands
| | - Jaap Harlaar
- VU University Medical Center, Department of Rehabilitation Medicine, Amsterdam Movement Sciences, the Netherlands; Delft University of Technology, Delft, the Netherlands
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14
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Lascurain-Aguirrebeña I, Newham DJ, Galarraga-Gallastegui B, Critchley DJ. Differences in neck surface electromyography, kinematics and pain occurrence during physiological neck movements between neck pain and asymptomatic participants. A cross-sectional study. Clin Biomech (Bristol, Avon) 2018; 57:1-9. [PMID: 29864606 DOI: 10.1016/j.clinbiomech.2018.05.010] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Revised: 04/25/2018] [Accepted: 05/21/2018] [Indexed: 02/07/2023]
Abstract
BACKGROUND Neck pain has been associated with altered muscle activity and impaired kinematics. Patients frequently report pain during physiological neck movements. Previously, the average muscle activity during these movements has been measured. However, muscle activity is modulated by the position in the range of movement, hence the study of neck muscle activity in discrete sections of the range of movement is warranted. Evidence is conflicting regarding range of movement restriction in neck pain. No study has assessed the point in the range of movement at which pain occurs. This study aimed to investigate neck kinematics, muscle activity and pain during physiological neck movements in participants with and without neck pain. METHODS Neck kinematics and surface electromyography were recorded continuously and analysed in 10° increments during forward and side flexion, extension and rotation of the neck in 20 neck pain and 20 asymptomatic participants. Point of pain occurrence in the range of movement was recorded. FINDINGS Neck pain participants demonstrated significantly lower activity of scalene during flexion and extension, and a non-significant higher activity in sternocleidomastoids during rotation. No differences in neck kinematics were observed. 65% of neck pain participants reported pain during at least one neck movement. Pain was reported in the last ≈20-40% of the range of movement. INTERPRETATION Exercises used in current practice to minimise scalene activity may not be appropriate for all neck pain patients. Restricted range of movement is not a consistent feature of neck pain. Movement associated neck pain is present at the end of range of movement, which has implications for the study of neck pain and rehabilitation.
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Affiliation(s)
- Ion Lascurain-Aguirrebeña
- School of Population Sciences and Health Services Research, Faculty of Life Sciences & Medicine, King's College London, London SE1 1UL, United Kingdom; Department of Physiology, Faculty of Medicine & Odontology, University of the Basque Country, Leioa 48940, Spain.
| | - Di J Newham
- Centre of Human & Aerospace Physiological Sciences, Faculty of Life Sciences & Medicine, King's College London, London SE1 1UL, United Kingdom.
| | | | - Duncan J Critchley
- School of Population Sciences and Health Services Research, Faculty of Life Sciences & Medicine, King's College London, London SE1 1UL, United Kingdom.
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15
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Relationship between Isometric Muscle Force and Fractal Dimension of Surface Electromyogram. BIOMED RESEARCH INTERNATIONAL 2018; 2018:5373846. [PMID: 29736393 PMCID: PMC5875057 DOI: 10.1155/2018/5373846] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Revised: 02/01/2018] [Accepted: 02/11/2018] [Indexed: 11/17/2022]
Abstract
The relationship between fractal dimension of the surface electromyogram (sEMG) and the intensity of muscle contraction is still controversial in simulated and experimental conditions. To support the use of fractal analysis to investigate myoelectric fatigue, it is crucial to establish the interdependence between fractal dimension and muscle contraction intensity. We analyzed the behavior of fractal dimension, conduction velocity, mean frequency, and average rectified value in twenty-eight volunteers at nine levels of isometric force. sEMG was obtained using bidimensional arrays in the biceps brachii muscle. The values of fractal dimension and mean frequency increased with force unless a plateau was reached at 30% maximal voluntary contraction. Overall, our findings suggest that, above a certain level of force, the use of fractal dimension to evaluate the myoelectric manifestations of fatigue may be considered, regardless of muscle contraction intensity.
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16
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Mousavi-Khatir R, Talebian S, Toosizadeh N, Olyaei GR, Maroufi N. Disturbance of neck proprioception and feed-forward motor control following static neck flexion in healthy young adults. J Electromyogr Kinesiol 2018; 41:160-167. [PMID: 29935422 DOI: 10.1016/j.jelekin.2018.04.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2018] [Revised: 04/22/2018] [Accepted: 04/23/2018] [Indexed: 11/16/2022] Open
Abstract
The highly complex proprioceptive system provides neuromuscular control of the mobile cervical spine. Static neck flexion can induce the elongation of posterior tissues and altered afferent input from the mechanoreceptors. The purpose of this study was to examine the effect of prolonged static neck flexion on neck proprioception and anticipatory postural adjustments. Thirty-eight healthy participants (20 females and 18 males) between the ages of 20-35 years with no history of neck, low back, and shoulder pain enrolled in this study. Neck proprioception and anticipatory muscle activity were tested before and after 10-min static neck flexion. For assessment of neck proprioception, each participant was asked to perform 10 trials of the cervicocephalic relocation test to the neutral head position after active neck rotation to the left and right sides. Anticipatory postural adjustments were evaluated during a rapid arm flexion test. Following the flexion, the absolute and variable errors in head repositioning significantly increased (p < 0.05). The results also showed that there was a significant delay in the onset of myoelectric activity of the cervical erector spinae muscles after flexion (p = 0.001). The results of this study suggested that a 10-min static flexion can lead to changes in the neck proprioception and feed-forward control due to mechanical and neuromuscular changes in the viscoelastic cervical spine structures. These changes in sensory-motor control may be a risk factor for neck pain and injury.
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Affiliation(s)
- Roghayeh Mousavi-Khatir
- Mobility Impairment Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran; Department of Physical Therapy, School of Rehabilitation, Babol University of Medical Sciences, Babol, Iran.
| | - Saeed Talebian
- Department of Physical Therapy, School of Rehabilitation, Tehran University of Medical Sciences: Pich Shemiran, Tehran, Iran.
| | - Nima Toosizadeh
- Arizona Center on Aging, Department of Medicine, University of Arizona, Tucson, AZ, United States; Department of Biomedical Engineering, University of Arizona, Tucson, AZ, United States.
| | - Gholam Reaza Olyaei
- Department of Physical Therapy, School of Rehabilitation, Tehran University of Medical Sciences: Pich Shemiran, Tehran, Iran.
| | - Nader Maroufi
- Department of Physical Therapy, School of Rehabilitation, Iran University of Medical Sciences, Tehran, Iran
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Johal J, Iwanaga J, Tubbs K, Loukas M, Oskouian RJ, Tubbs RS. The Accessory Nerve: A Comprehensive Review of its Anatomy, Development, Variations, Landmarks and Clinical Considerations. Anat Rec (Hoboken) 2018; 302:620-629. [DOI: 10.1002/ar.23823] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Revised: 04/11/2017] [Accepted: 05/14/2017] [Indexed: 12/16/2022]
Affiliation(s)
- Jaspreet Johal
- Department of Anatomical SciencesSt. George's UniversitySt. George's Grenada
- Seattle Science FoundationSeattle Washington
| | - Joe Iwanaga
- Seattle Science FoundationSeattle Washington
| | - Kevin Tubbs
- Seattle Science FoundationSeattle Washington
| | - Marios Loukas
- Department of Anatomical SciencesSt. George's UniversitySt. George's Grenada
| | | | - R. Shane Tubbs
- Department of Anatomical SciencesSt. George's UniversitySt. George's Grenada
- Seattle Science FoundationSeattle Washington
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18
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Alsalaheen B, Bean R, Almeida A, Eckner J, Lorincz M. Characterization of cervical neuromuscular response to head-neck perturbation in active young adults. J Electromyogr Kinesiol 2018; 39:70-76. [DOI: 10.1016/j.jelekin.2018.01.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Revised: 01/22/2018] [Accepted: 01/31/2018] [Indexed: 01/17/2023] Open
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Chaikumarn M, Nakphet N, Janwantanakul P. Repeatability of electromyography normalization of the neck and shoulder muscles in symptomatic office workers. INTERNATIONAL JOURNAL OF OCCUPATIONAL SAFETY AND ERGONOMICS 2017; 24:422-430. [DOI: 10.1080/10803548.2017.1314120] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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20
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Cibulka MT, Herren J, Kilian A, Smith S, Mahmutovic F, Dolles C. The reliability of assessing sternocleidomastoid muscle length and strength in adults with and without mild neck pain. Physiother Theory Pract 2017; 33:323-330. [DOI: 10.1080/09593985.2017.1302539] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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21
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Beretta-Piccoli M, D’Antona G, Zampella C, Barbero M, Clijsen R, Cescon C. Test-retest reliability of muscle fiber conduction velocity and fractal dimension of surface EMG during isometric contractions. Physiol Meas 2017; 38:616-630. [DOI: 10.1088/1361-6579/aa614c] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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22
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Green LA, McGuire J, Gabriel DA. Flexor carpi radialis surface electromyography electrode placement for evoked and voluntary measures. Muscle Nerve 2015; 52:818-25. [DOI: 10.1002/mus.24631] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2014] [Revised: 02/19/2015] [Accepted: 02/25/2015] [Indexed: 11/11/2022]
Affiliation(s)
- Lara A. Green
- Electromyographic Kinesiology Laboratory, Faculty of Applied Health Sciences, Brock University; 500 Glenridge Avenue St. Catharines Ontario L2S 3A1 Canada
| | - Jessica McGuire
- Electromyographic Kinesiology Laboratory, Faculty of Applied Health Sciences, Brock University; 500 Glenridge Avenue St. Catharines Ontario L2S 3A1 Canada
| | - David A. Gabriel
- Electromyographic Kinesiology Laboratory, Faculty of Applied Health Sciences, Brock University; 500 Glenridge Avenue St. Catharines Ontario L2S 3A1 Canada
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23
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Jin SW, Park KJ, Park DH, Kang SH. Intracisternal cranial root accessory nerve schwannoma associated with recurrent laryngeal neuropathy. J Korean Neurosurg Soc 2014; 56:152-6. [PMID: 25328655 PMCID: PMC4200365 DOI: 10.3340/jkns.2014.56.2.152] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2014] [Revised: 07/07/2014] [Accepted: 08/16/2014] [Indexed: 11/27/2022] Open
Abstract
Intracisternal accessory nerve schwannomas are very rare; only 18 cases have been reported in the literature. In the majority of cases, the tumor origin was the spinal root of the accessory nerve and the tumors usually presented with symptoms and signs of intracranial hypertension, cerebellar ataxia, and myelopathy. Here, we report a unique case of an intracisternal schwannoma arising from the cranial root of the accessory nerve in a 58-year-old woman. The patient presented with the atypical symptom of hoarseness associated with recurrent laryngeal neuropathy which is noted by needle electromyography, and mild hypesthesia on the left side of her body. The tumor was completely removed with sacrifice of the originating nerve rootlet, but no additional neurological deficits. In this report, we describe the anatomical basis for the patient's unusual clinical symptoms and discuss the feasibility and safety of sacrificing the cranial rootlet of the accessory nerve in an effort to achieve total tumor resection. To our knowledge, this is the first case of schwannoma originating from the cranial root of the accessory nerve that has been associated with the symptoms of recurrent laryngeal neuropathy.
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Affiliation(s)
- Sung-Won Jin
- Department of Neurosurgery, Korea University Medical Center, College of Medicine, Korea University, Seoul, Korea
| | - Kyung-Jae Park
- Department of Neurosurgery, Korea University Medical Center, College of Medicine, Korea University, Seoul, Korea
| | - Dong-Hyuk Park
- Department of Neurosurgery, Korea University Medical Center, College of Medicine, Korea University, Seoul, Korea
| | - Shin-Hyuk Kang
- Department of Neurosurgery, Korea University Medical Center, College of Medicine, Korea University, Seoul, Korea
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24
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Schmidt JD, Guskiewicz KM, Blackburn JT, Mihalik JP, Siegmund GP, Marshall SW. The influence of cervical muscle characteristics on head impact biomechanics in football. Am J Sports Med 2014; 42:2056-66. [PMID: 24928761 DOI: 10.1177/0363546514536685] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND An athlete is thought to reduce head acceleration after impact by contracting the cervical musculature, which increases the effective mass of the head. PURPOSE To compare the odds of sustaining higher magnitude in-season head impacts between athletes with higher and lower preseason performance on cervical muscle characteristics. STUDY DESIGN Cohort study; Level of evidence, 2. METHODS Forty-nine high school and collegiate American football players completed a preseason cervical testing protocol that included measures of cervical isometric strength, muscle size, and response to cervical perturbation. Head impact biomechanics were captured for each player using the Head Impact Telemetry System. A median split was used to categorize players as either high or low performers for each of the following outcome measures: isometric strength (peak torque, rate of torque development), muscle size (cross-sectional area), and response to cervical perturbation (stiffness, angular displacement, muscle onset latency). The odds of sustaining moderate and severe head impacts were computed against the reference odds of sustaining mild head impacts across cervical characteristic categorizations. RESULTS Linemen with stronger lateral flexors and composite cervical strength had about 1.75 times' increased odds of sustaining moderate linear head impacts rather than mild impacts compared with weaker linemen. Players who developed extensor torque more quickly had 2 times the increased odds of sustaining severe linear head impacts (odds ratio [OR], 2.10; 95% CI, 1.08-4.05) rather than mild head impacts. However, players with greater cervical stiffness had reduced odds of sustaining both moderate (OR, 0.77; 95% CI, 0.61-0.96) and severe (OR, 0.64; 95% CI, 0.46-0.89) head impacts compared with players with less cervical stiffness. CONCLUSION The study findings showed that greater cervical stiffness and less angular displacement after perturbation reduced the odds of sustaining higher magnitude head impacts; however, the findings did not show that players with stronger and larger neck muscles mitigate head impact severity.
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Affiliation(s)
| | - Kevin M Guskiewicz
- Matthew A. Gfeller Sport-Related Traumatic Brain Injury Research Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA Department of Exercise and Sport Science, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA Injury Prevention Research Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - J Troy Blackburn
- Department of Exercise and Sport Science, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA Neuromuscular Research Laboratory, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Jason P Mihalik
- Matthew A. Gfeller Sport-Related Traumatic Brain Injury Research Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA Department of Exercise and Sport Science, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA Injury Prevention Research Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Gunter P Siegmund
- MEA Forensic Engineers & Scientists, Richmond, British Columbia, Canada School of Kinesiology, University of British Columbia, Vancouver, British Columbia, Canada
| | - Stephen W Marshall
- Injury Prevention Research Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA Department of Epidemiology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
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25
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Immediate effects of active cranio-cervical flexion exercise versus passive mobilisation of the upper cervical spine on pain and performance on the cranio-cervical flexion test. ACTA ACUST UNITED AC 2014; 19:25-31. [DOI: 10.1016/j.math.2013.05.011] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2013] [Revised: 05/16/2013] [Accepted: 05/21/2013] [Indexed: 11/20/2022]
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26
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Monaco A, Sgolastra F, Pietropaoli D, Giannoni M, Cattaneo R. Comparison between sensory and motor transcutaneous electrical nervous stimulation on electromyographic and kinesiographic activity of patients with temporomandibular disorder: a controlled clinical trial. BMC Musculoskelet Disord 2013; 14:168. [PMID: 23672400 PMCID: PMC3660267 DOI: 10.1186/1471-2474-14-168] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2013] [Accepted: 05/03/2013] [Indexed: 01/31/2023] Open
Abstract
Background The purpose of the present controlled clinical trial was to assess the effect of a single 60 min application of transcutaneous electrical nervous stimulation (TENS) at sensory stimulation threshold (STS), compared to the application of motor stimulation threshold (MTS) as well as to untreatment, on the surface electromyographic (sEMG) and kinesiographic activity of patients with tempormanbibular disorder (TMD). Methods Sixty female subjects, selected according to the inclusion/exclusion criteria, suffering from unilateral TMD in remission were assigned to MTS, STS or untreatment. Pre- and post-treatment differences in the sEMG activity of temporalis anterior (TA), masseter (MM), digastric (DA) and sternocleidomastoid muscles (SCM), as well in the interocclusal distance (ID), within group were tested using the Wilcoxon test, while differences among groups were assessed by Kruskal-Wallis test; the level of significance was set at p ≤ 0.05. Results Significant pre- and post-treatment differences were observed in MTS and STS groups, for TA and MM of both sides; no significant difference was detected between MTS and STS groups. Kinesiographic results showed that the vertical component of ID was significantly increased after TENS in MTS and STS groups. Conclusions STS TENS could be effective, as well as MTS, in reduce the sEMG activity of masticatory muscles and to improve the ID of TMD patients in remission. Future studies are needed to confirm the results of the present study. Clinical relevance. The present study demonstrates that the application of TENS is effective in reduce the sEMG activity, as well as in increasing the ID of patients with TMD; our study did not support superior effectiveness of MTS or STS. Trial registration ClinicalTrials.gov: NCT01832207
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Affiliation(s)
- Annalisa Monaco
- University of L'Aquila Department of Health Sciences, Via Vetoio 1, Italy, L'Aquila 67100, Italy.
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27
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Van Houtte E, Claeys S, D’haeseleer E, Wuyts F, Van Lierde K. An Examination of Surface EMG for the Assessment of Muscle Tension Dysphonia. J Voice 2013; 27:177-86. [DOI: 10.1016/j.jvoice.2011.06.006] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2010] [Accepted: 06/30/2011] [Indexed: 10/17/2022]
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Tubbs RS, Benninger B, Loukas M, Cohen-Gadol AA. Cranial roots of the accessory nerve exist in the majority of adult humans. Clin Anat 2012; 27:102-7. [DOI: 10.1002/ca.22125] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2012] [Revised: 06/08/2012] [Accepted: 06/14/2012] [Indexed: 11/11/2022]
Affiliation(s)
- R. Shane Tubbs
- Pediatric Neurosurgery, Children's Hospital, Birmingham, Alabama
| | - Brion Benninger
- Department of Medical Anatomical Sciences, Western University of Health Sciences, COMP-NW, Lebanon, Oregon
- Orthopedic Department, Samaritan Healthcare, Corvallis, Oregon
- General Surgery Department, Samaritan Healthcare, Corvallis, Oregon
- Department of Surgery, Oregon Health & Science University, Portland, Oregon
- Orthopedics & Rehabilitation, Oregon Health & Science University, Portland, Oregon. Oral Maxillofacial Surgery, Oregon Health & Science University, Portland, Oregon
| | - Marios Loukas
- Department of Anatomical Sciences, St. George's University, Grenada, West Indies
| | - Aaron A. Cohen-Gadol
- Goodman Campbell Brain and Spine, Indiana University Department of Neurological Surgery, Indianapolis, Indiana
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29
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Hellmann D, Giannakopoulos NN, Schmitter M, Lenz J, Schindler HJ. Anterior and posterior neck muscle activation during a variety of biting tasks. Eur J Oral Sci 2012; 120:326-34. [DOI: 10.1111/j.1600-0722.2012.00969.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/01/2012] [Indexed: 11/27/2022]
Affiliation(s)
- Daniel Hellmann
- Department of Prosthodontics; University of Heidelberg; Heidelberg; Germany
| | | | - Marc Schmitter
- Department of Prosthodontics; University of Heidelberg; Heidelberg; Germany
| | - Jürgen Lenz
- Research Group Biomechanics; Institute for Mechanics; Karlsruhe Institute of Technology (KIT); Karlsruhe; Germany
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30
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Monaco A, Sgolastra F, Ciarrocchi I, Cattaneo R. Effects of transcutaneous electrical nervous stimulation on electromyographic and kinesiographic activity of patients with temporomandibular disorders: A placebo-controlled study. J Electromyogr Kinesiol 2012; 22:463-8. [DOI: 10.1016/j.jelekin.2011.12.008] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2011] [Revised: 10/20/2011] [Accepted: 12/12/2011] [Indexed: 11/17/2022] Open
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McIntosh KCD, Gabriel DA. Reliability of a simple method for determining muscle fiber conduction velocity. Muscle Nerve 2012; 45:257-65. [PMID: 22246883 DOI: 10.1002/mus.22268] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Kyle C D McIntosh
- Faculty of Applied Health Sciences, Brock University, 500 Glenridge Avenue, St. Catharines, Ontario L2S 3A1, Canada
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Bexander CSM, Hodges PW. Cervico-ocular coordination during neck rotation is distorted in people with whiplash-associated disorders. Exp Brain Res 2011; 217:67-77. [PMID: 22179527 DOI: 10.1007/s00221-011-2973-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2011] [Accepted: 11/30/2011] [Indexed: 12/20/2022]
Abstract
People with whiplash-associated disorders (WAD) not only suffer from neck/head pain, but commonly report deficits in eye movement control. Recent work has highlighted a strong relationship between eye and neck muscle activation in pain-free subjects. It is possible that WAD may disrupt the intricate coordination between eye and neck movement. Electromyographic activity (EMG) of muscles that rotate the cervical spine to the right (left sternocleidomastoid, right obliquus capitis inferior (OI), right splenius capitis (SC) and right multifidus (MF)) was recorded in nine people with chronic WAD. Cervical rotation was performed with five gaze conditions involving different gaze directions relative to cervical rotation. The relationship between eye position/movement and neck muscle activity was contrasted with previous observations from pain-free controls. Three main differences were observed in WAD. First, the superficial muscle SC was active with both directions of cervical rotation in contrast to activity only with right rotation in pain-free controls. Second, activity of OI and MF varied between directions of cervical rotation, unlike the non-direction-specific activity in controls. Third, the effect of horizontal gaze direction on neck muscle EMG was augmented compared to controls. These observations provide evidence of redistribution of activity between neck muscles during cervical rotation and increased interaction between eye and neck muscle activity in people with WAD. These changes in cervico-ocular coordination may underlie clinical symptoms reported by people with WAD that involve visual deficits and changes in function during cervical rotation such as postural control.
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Affiliation(s)
- Catharina S M Bexander
- NHMRC Centre of Clinical Research Excellence in Spinal Pain, Injury and Health, School of Health and Rehabilitation Sciences, The University of Queensland, Brisbane, QLD, 4072, Australia
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Swinnen E, Baeyens JP, Meeusen R, Kerckhofs E. Methodology of electromyographic analysis of the trunk muscles during walking in healthy subjects: a literature review. J Electromyogr Kinesiol 2011; 22:1-12. [PMID: 21622008 DOI: 10.1016/j.jelekin.2011.04.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2010] [Revised: 03/04/2011] [Accepted: 04/13/2011] [Indexed: 10/18/2022] Open
Abstract
PURPOSE To review and discuss the literature about the use of trunk muscle electromyography - including the use of surface or fine-wire electrodes, site of application and muscle selection - during gait analysis in healthy subjects. METHODS The databases Pubmed, Web of Knowledge and Cochrane Library were searched. Articles were included when EMG activity of at least one trunk muscle was measured in healthy subjects during walking. RESULTS In the 33 selected articles 491 healthy subjects walked with different velocities on a treadmill and/or overground. The activity of the M. erector spinae, M. multifidus, M. obliquus externus and internus, M. rectus abdominus, M. trapezius, M. latissimus dorsi, M. transversus abdominus, M. iliopsoas and M. quadrates lumborum was measured. Twenty-nine studies used surface electrodes, one study fine-wire electrodes, and the other three studies used a combination. There is no consensus on the exact placement site of the electrodes. CONCLUSION Surface electrodes were used more often than fine-wire electrodes and the descriptions of the electrode locations were mostly vague and not consistent among the different studies. There is need for further research to make specific recommendations about the type of electrodes in combination with the optimal locations of application of these electrodes.
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Affiliation(s)
- Eva Swinnen
- Vrije Universiteit Brussel, Faculty of Physical Education and Physiotherapy, Advanced Rehabilitation Technology and Science (ARTS), Belgium.
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Lindstrøm R, Schomacher J, Farina D, Rechter L, Falla D. Association between neck muscle coactivation, pain, and strength in women with neck pain. ACTA ACUST UNITED AC 2011; 16:80-6. [DOI: 10.1016/j.math.2010.07.006] [Citation(s) in RCA: 99] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2010] [Revised: 07/07/2010] [Accepted: 07/12/2010] [Indexed: 01/25/2023]
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Transitional Nerve: A New and Original Classification of a Peripheral Nerve Supported by the Nature of the Accessory Nerve (CN XI). Neurol Res Int 2011; 2010:476018. [PMID: 21318044 PMCID: PMC3026986 DOI: 10.1155/2010/476018] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2010] [Accepted: 11/14/2010] [Indexed: 12/26/2022] Open
Abstract
Classically, the accessory nerve is described as having a cranial and a spinal root. Textbooks are inconsistent with regard to the modality of the spinal root of the accessory nerve. Some authors report the spinal root as general somatic efferent (GSE), while others list a special visceral efferent (SVE) modality. We investigated the comparative, anatomical, embryological, and molecular literature to determine which modality of the accessory nerve was accurate and why a discrepancy exists. We traced the origin of the incongruity to the writings of early comparative anatomists who believed the accessory nerve was either branchial or somatic depending on the origin of its target musculature. Both theories were supported entirely by empirical observations of anatomical and embryological dissections. We find ample evidence including very recent molecular experiments to show the cranial and spinal root are separate entities. Furthermore, we determined the modality of the spinal root is neither GSE or SVE, but a unique peripheral nerve with a distinct modality. We propose a new classification of the accessory nerve as a transitional nerve, which demonstrates characteristics of both spinal and cranial nerves.
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Reduced force steadiness in women with neck pain and the effect of short term vibration. J Electromyogr Kinesiol 2010; 21:283-90. [PMID: 21195628 DOI: 10.1016/j.jelekin.2010.11.011] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2010] [Revised: 11/02/2010] [Accepted: 11/29/2010] [Indexed: 11/21/2022] Open
Abstract
This study compares neck force steadiness in women with neck pain and controls and the way this is influenced by short term vibration of the neck. In the first experiment, 9 women with chronic neck pain and 9 controls performed 10-s isometric cervical flexion at 15N. Intramuscular EMG was recorded from the sternocleidomastoid muscle. In the second experiment, 10 women with neck pain and 10 controls performed 10-s isometric cervical flexion at 25% of their maximal force before and after vibration to the neck (bursts of 50Hz with duration 20, 40, 60 and 120s). Surface EMG was acquired from the sternocleidomastoid and splenius capitis. In both experiments, force steadiness was characterized by the coefficient of variation (CoV) and the relative power in three frequency subbands (low: 0-3Hz; middle: 4-6Hz; high: 8-12Hz) of the force signal. Women with neck pain exhibited decreased force steadiness (Exp 1: patients 3.9±1.3%, controls 2.7±0.9%, P<0.05; Exp 2: patients 3.4±1.2%, controls 1.7±0.6%, P<0.01) which was associated with higher power in the low-frequency band (patients 71.2±9.6%, controls 56.7±9.2%, P<0.01). Following vibration, CoV (2.6±1.1%, P<0.05) and the power in the low-frequency band of the force signal decreased (63.1±13.9%, P<0.05) in the patient group. These effects were not present in controls. Motor unit behavior and surface EMG amplitude were similar between groups. In conclusion, women with neck pain have reduced force steadiness, likely due to alterations in Ia afferent input. Vibration, which modulates Ia afferent input, increases force steadiness in patients with neck pain.
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Strimpakos N. The assessment of the cervical spine. Part 2: strength and endurance/fatigue. J Bodyw Mov Ther 2010; 15:417-30. [PMID: 21943615 DOI: 10.1016/j.jbmt.2010.10.001] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2010] [Revised: 09/23/2010] [Accepted: 10/05/2010] [Indexed: 12/16/2022]
Abstract
Quantitative documentation of physical deficits such as muscle strength and endurance/fatigue in the cervical spine may provide objective information, not only helping the diagnostic procedures, but also monitoring rehabilitation progress and documenting permanent impairments. The reliable and valid evaluation of muscle strength and endurance both in clinical and research environments are a difficult task since there are many factors that could affect the assessment procedure and the obtained values. The aim of the second part of this critical review is to identify the factors influencing the assessment of strength and endurance/fatigue of the muscles in the cervical spine.
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Affiliation(s)
- Nikolaos Strimpakos
- Department of Physiotherapy, TEI Lamias, 3rd Km Old National Road, Lamia-Athens, Lamia 35100, Greece.
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Nimbarte AD, Aghazadeh F, Ikuma LH, Harvey CM. Neck disorders among construction workers: understanding the physical loads on the cervical spine during static lifting tasks. INDUSTRIAL HEALTH 2010; 48:145-153. [PMID: 20424344 DOI: 10.2486/indhealth.48.145] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
In this study a common yet very strenuous construction work activity, was evaluated biomechanically by studying electromyography (EMG) of the major neck muscles. The muscles studied were the sternocleidomastoid and the upper trapezius. Fifteen healthy participants (10 males and 5 females) with no history of musculoskeletal abnormalities participated in this study. The participants lifted 25%, 50%, and 75% of their maximum shoulder height static strength at neutral, maximally flexed, and maximally extended neck postures. The weight lifted as well as the neck posture significantly affected the activities of the neck muscles. Increase in the weight increased the activation of the neck muscles. The sternocleidomastoid muscle was most active at the extended neck posture, while the upper trapezius muscle was most active at the flexed neck posture. The results of this study indicate that the neck muscles play an active role during lifting and holding tasks at shoulder height. Thus, such tasks could be probable risk factors associated with neck disorders prevalent among construction workers.
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Affiliation(s)
- Ashish D Nimbarte
- Industrial and Management Systems Engineering, West Virginia University, Morgantown, WV 26506-6107, USA.
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Kallenberg LA, Preece S, Nester C, Hermens HJ. Reproducibility of MUAP properties in array surface EMG recordings of the upper trapezius and sternocleidomastoid muscle. J Electromyogr Kinesiol 2009; 19:e536-42. [DOI: 10.1016/j.jelekin.2008.11.012] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2008] [Revised: 11/03/2008] [Accepted: 11/03/2008] [Indexed: 12/01/2022] Open
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Almosnino S, Pelland L, Pedlow SV, Stevenson JM. Between-day reliability of electromechanical delay of selected neck muscles during performance of maximal isometric efforts. BMC Sports Sci Med Rehabil 2009; 1:22. [PMID: 19775461 PMCID: PMC2764695 DOI: 10.1186/1758-2555-1-22] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2009] [Accepted: 09/23/2009] [Indexed: 11/26/2022]
Abstract
Background The purpose of this study was to assess the between-day reliability of the electromechanical delay (EMD) of selected neck muscles during the performance of maximal isometric contractions in five different directions. Methods Twenty-one physically active males participated in two testing sessions separated by seven to eight days. Using a custom-made fixed frame dynamometer, cervical force and surface electromyography (EMG) were recorded bilaterally from the splenius capitis, upper trapezius and sternocleidomastoid muscles during the performance of efforts in extension, flexion, left and right lateral bending, and protraction. The EMD was extracted using the Teager-Kaiser Energy Operator. Reliability indices calculated for each muscle in each testing direction were: the difference in scores between the two testing sessions and corresponding 95% confidence intervals, the standard error of measurement (SEM) and intra-class correlation coefficients (ICC). Results EMD values showed no evidence of systematic difference between the two testing sessions across all muscles and testing directions. The SEM for extension, flexion and lateral bending efforts ranged between 2.5 ms to 4.8 ms, indicating a good level of measurement precision. For protraction, SEM values were higher and considered to be imprecise for research and clinical purposes. ICC values for all muscles across all testing directions ranged from 0.23 to 0.79. Conclusion EMD of selected neck muscles can be measured with sufficient precision for the assessment of neck muscle function in an athletic population in the majority of directions tested.
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Affiliation(s)
- Sivan Almosnino
- School of Rehabilitation Therapy, Queen's University, Kingston, ON, Canada.
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41
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Larochelle JL, Laliberté M, Bilodeau M, Dumas JP, Bertrand Arsenault A. Influence of test position on neck muscle fatigue in healthy controls. J Electromyogr Kinesiol 2009; 19:e223-8. [DOI: 10.1016/j.jelekin.2008.04.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2007] [Revised: 04/09/2008] [Accepted: 04/09/2008] [Indexed: 10/22/2022] Open
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Falla D, Jull G, Edwards S, Koh K, Rainoldi A. Neuromuscular efficiency of the sternocleidomastoid and anterior scalene muscles in patients with chronic neck pain. Disabil Rehabil 2009; 26:712-7. [PMID: 15204493 DOI: 10.1080/09638280410001704287] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
PURPOSE This study compared the neuromuscular efficiency (NME) of the sternocleidomastoid (SCM) and anterior scalene (AS) muscles between 20 chronic neck pain patients and 20 asymptomatic controls. METHOD Myoelectric signals were recorded from the sternal head of SCM and the AS muscles as subjects performed sub-maximal isometric cervical flexion contractions at 25 and 50% of the maximum voluntary contraction (MVC). The NME was calculated as the ratio between MVC and the corresponding average rectified value of the EMG signal. Ultrasonography was used to measure subcutaneous tissue thickness over the SCM and AS to ensure that differences did not exist between groups. RESULTS For both the SCM and AS muscles, NME was shown to be significantly reduced in patients with neck pain at 25% MVC (p<0.05). Subcutaneous tissue thickness over the SCM and AS muscles was not different between groups. CONCLUSIONS Reduced NME in the superficial cervical flexor muscles in patients with neck pain may be a measurable altered muscle strategy for dysfunction in other muscles. This aberrant pattern of muscle activation appears to be most evident under conditions of low load. NME, when measured at 25% MVC, may be a useful objective measure for future investigation of muscle dysfunction in patients with neck pain.
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Affiliation(s)
- D Falla
- Division of Physiotherapy, The University of Queensland, Brisbane, Queensland, Australia.
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Balasubramanian V, Jayaraman S. Surface EMG based muscle activity analysis for aerobic cyclist. J Bodyw Mov Ther 2009; 13:34-42. [PMID: 19118791 DOI: 10.1016/j.jbmt.2008.03.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2007] [Revised: 02/08/2008] [Accepted: 03/16/2008] [Indexed: 11/20/2022]
Abstract
In this study, we determined the muscle activity of aerobic cyclist on biceps brachii medial, trapezius medial, latissimus dorsi medial, and erector spinae muscles bilaterally during 30 min of cycling. Thirteen male volunteers were chosen and placed in two groups (with and without low back pain (LBP)). Surface electromyography (sEMG) was recorded bilaterally from selected muscle groups for 30 min of cycling for each subject. Statistical tests were performed to determine the difference in fatigue, using mean power frequency difference. LBP group showed a significantly higher fatigue (p<0.05) in left biceps brachii medial when compared to the control group. High fatigue in the back muscles in the LBP group was not found; however, when linear regression was performed for these individuals, the data showed a possibility of worsening in their condition due to 30 min of cycling.
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Affiliation(s)
- Venkatesh Balasubramanian
- Rehabilitation Bioengineering Group (RBG), Department of Biotechnology, IIT Madras, Chennai 600036, India.
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de Koning CHP, van den Heuvel SP, Staal JB, Smits-Engelsman BCM, Hendriks EJM. Clinimetric evaluation of methods to measure muscle functioning in patients with non-specific neck pain: a systematic review. BMC Musculoskelet Disord 2008; 9:142. [PMID: 18928568 PMCID: PMC2575213 DOI: 10.1186/1471-2474-9-142] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2008] [Accepted: 10/19/2008] [Indexed: 11/16/2022] Open
Abstract
Background Neck pain is a significant health problem in modern society. There is evidence to suggest that neck muscle strength is reduced in patients with neck pain. This article provides a critical analysis of the research literature on the clinimetric properties of tests to measure neck muscle strength or endurance in patients with non-specific neck pain, which can be used in daily practice. Methods A computerised literature search was performed in the Medline, CINAHL and Embase databases from 1980 to January 2007. Two reviewers independently assessed the clinimetric properties of identified measurement methods, using a checklist of generally accepted criteria for reproducibility (inter- and intra-observer reliability and agreement), construct validity, responsiveness and feasibility. Results The search identified a total of 16 studies. The instruments or tests included were: muscle endurance tests for short neck flexors, craniocervical flexion test with an inflatable pressure biofeedback unit, manual muscle testing of neck musculature, dynamometry and functional lifting tests (the cervical progressive iso-inertial lifting evaluation (PILE) test and the timed weighted overhead test). All the articles included report information on the reproducibility of the tests. Acceptable intra- and inter-observer reliability was demonstrated for t enduranctest for short neck flexors and the cervical PILE test. Construct validity and responsiveness have hardly been documented for tests on muscle functioning. Conclusion The endurance test of the short neck flexors and the cervical PILE test can be regarded as appropriate instruments for measuring different aspects of neck muscle function in patients with non-specific neck pain. Common methodological flaws in the studies were their small sample size and an inappropriate description of the study design.
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Dorel S, Couturier A, Hug F. Intra-session repeatability of lower limb muscles activation pattern during pedaling. J Electromyogr Kinesiol 2008; 18:857-65. [PMID: 17449281 DOI: 10.1016/j.jelekin.2007.03.002] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2006] [Revised: 03/06/2007] [Accepted: 03/06/2007] [Indexed: 11/24/2022] Open
Abstract
Assessment of intra-session repeatability of muscle activation pattern is of considerable relevance for research settings, especially when used to determine changes over time. However, the repeatability of lower limb muscles activation pattern during pedaling is not fully established. Thus, we tested the intra-session repeatability of the activation pattern of 10 lower limb muscles during a sub-maximal cycling exercise. Eleven triathletes participated to this study. The experimental session consisted in a reference sub-maximal cycling exercise (i.e. 150 W) performed before and after a 53-min simulated training session (mean power output=200+/-12 W). Repeatability of EMG patterns was assessed in terms of muscle activity level (i.e. RMS of the mean pedaling cycle and burst) and muscle activation timing (i.e. onset and offset of the EMG burst) for the 10 following lower limb muscles: gluteus maximus (GMax), semimembranosus (SM), Biceps femoris (BF), vastus medialis (VM), rectus femoris (RF), vastus lateralis (VL), gastrocnemius medianus (GM) and lateralis (GL), soleus (SOL) and tibialis anterior (TA). No significant differences concerning the muscle activation level were found between test and retest for all the muscles investigated. Only VM, SOL and TA showed significant differences in muscle activation timing parameters. Whereas ICC and SEM values confirmed this weak repeatability, cross-correlation coefficients suggest a good repeatability of the activation timing parameters for all the studied muscles. Overall, the main finding of this work is the good repeatability of the EMG pattern during pedaling both in term of muscle activity level and muscle activation timing.
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Affiliation(s)
- Sylvain Dorel
- National Institute for Sports (INSEP), Laboratory of Biomechanics and Physiology, F-75012 Paris, France
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Fernández-de-las-Peñas C, Falla D, Arendt-Nielsen L, Farina D. Cervical muscle co-activation in isometric contractions is enhanced in chronic tension-type headache patients. Cephalalgia 2008; 28:744-51. [PMID: 18460003 DOI: 10.1111/j.1468-2982.2008.01584.x] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The purpose of the study was to compare the co-activation of cervical agonist and antagonist muscles between people with chronic tension-type headache (CTTH) and healthy controls during brief isometric cervical flexion and extension contractions. Nine women with CTTH and 10 matched controls participated. Surface electromyographic (EMG) signals were detected from the sternocleidomastoid and splenius capitis muscles bilaterally during cervical flexion and extension contractions of linearly increasing force from 0% to 60% of the maximum voluntary contraction (MVC) in 3 s. Sternocleidomastoid and splenius capitis EMG average rectified values (ARV) were estimated at 10% MVC force increments. During cervical extension contraction, sternocleidomastoid (i.e. antagonist muscle) ARV was greater for patients than for controls in the force range 20-60% MVC (P = 0.029). During cervical flexion, the left splenius capitis (i.e. antagonist muscle) ARV was greater for CTTH patients regardless of the force level (P = 0.02). Maximum cervical flexion and extension force was lower for the CTTH patients compared with controls (P = 0.001). In conclusion, women with CTTH demonstrated greater co-activation of antagonist musculature during cervical extension and flexion contractions compared with healthy women. Increased co-activation of antagonist musculature may reflect reorganization of the motor control strategy in CTTH patients, potentially leading to muscle overload and increased nociception.
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Affiliation(s)
- C Fernández-de-las-Peñas
- Centre for Sensory-Motor Interaction, Department of Health Science and Technology, Aalborg University, Aalborg, Denmark.
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Netto KJ, Burnett AF, Green JP, Rodrigues JP. Validation of an EMG-Driven, Graphically Based Isometric Musculoskeletal Model of the Cervical Spine. J Biomech Eng 2008; 130:031014. [DOI: 10.1115/1.2913234] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
EMG-driven musculoskeletal modeling is a method in which loading on the active and passive structures of the cervical spine may be investigated. A model of the cervical spine exists; however, it has yet to be criterion validated. Furthermore, neck muscle morphometry in this model was derived from elderly cadavers, threatening model validity. Therefore, the overall aim of this study was to modify and criterion validate this preexisting graphically based musculoskeletal model of the cervical spine. Five male subjects with no neck pain participated in this study. The study consisted of three parts. First, subject-specific neck muscle morphometry data were derived by using magnetic resonance imaging. Second, EMG drive for the model was generated from both surface (Drive 1: N=5) and surface and deep muscles (Drive 2: N=3). Finally, to criterion validate the modified model, net moments predicted by the model were compared against net moments measured by an isokinetic dynamometer in both maximal and submaximal isometric contractions with the head in the neutral posture, 20deg of flexion, and 35deg of extension. Neck muscle physiological cross sectional area values were greater in this study when compared to previously reported data. Predictions of neck torque by the model were better in flexion (18.2% coefficient of variation (CV)) when compared to extension (28.5% CV) and using indwelling EMG did not enhance model predictions. There were, however, large variations in predictions when all the contractions were compared. It is our belief that further work needs to be done to improve the validity of the modified EMG-driven neck model examined in this study. A number of factors could potentially improve the model with the most promising probably being optimizing various modeling parameters by using methods established by previous researchers investigating other joints of the body.
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Affiliation(s)
- Kevin J. Netto
- School of Exercise and Nutrition Sciences, Deakin University Burwood, Victoria 3125, Australia; School of Exercise, Biomedical and Health Sciences, Edith Cowan University Joondalup, Western Australia 6027, Australia
| | - Angus F. Burnett
- School of Exercise, Biomedical and Health Sciences, Edith Cowan University Joondalup, Western Australia 6027, Australia
| | - Jonathon P. Green
- ICON Technologies Pty Ltd., Victoria Park, Western Australia 6979, Australia
| | - Julian P. Rodrigues
- Centre for Neuromuscular and Neurological Disorders, University of Western Australia, Nedlands, Western Australia 6009, Australia
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Bergamini M, Pierleoni F, Gizdulich A, Bergamini C. Dental occlusion and body posture: a surface EMG study. Cranio 2008; 26:25-32. [PMID: 18290522 DOI: 10.1179/crn.2008.041] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
The influence between dental occlusion and body posture has been discussed in the past ten years by several authors with controversial conclusions. The objective of this study was to access, using surface electromyography (EMG), the rest activity of paired sternocleidomastoids, erectors spinae at L4 level, and soleus muscles in a group of 24 volunteer subjects (12 males, 12 females, aged 23-25 yrs) affected by sub-clinical dental malocclusions in different situations of dental occlusion. The subjects' occlusion was balanced (neuromuscularly) (registered on an acrylic wafer). Rest activity was assessed using the sEMG. The measurements were achieved on subjects while standing barefooted, before (Test 1), and 15 minutes after they wore the acrylic wafer (Test 2). The result was a significant reduction of the mean voltage for each muscle. Paired muscles were registered and the balancing rate between right and left muscles showed improvement for all the paired muscles (Wilcoxon test p < 0.05). No significant difference was noted in the relaxation and balancing rates between the muscles tested. The data confirmed a beneficial effect of balancing the occlusion with an acrylic wafer on the following paired postural muscles: sternocleidomostoid, erector spinae, and soleus.
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Aström C, Lindkvist M, Burström L, Sundelin G, Karlsson JS. Changes in EMG activity in the upper trapezius muscle due to local vibration exposure. J Electromyogr Kinesiol 2007; 19:407-15. [PMID: 18096405 DOI: 10.1016/j.jelekin.2007.11.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2007] [Revised: 11/01/2007] [Accepted: 11/01/2007] [Indexed: 11/25/2022] Open
Abstract
Exposure to vibration is suggested as a risk factor for developing neck and shoulder disorders in working life. Mechanical vibration applied to a muscle belly or a tendon can elicit a reflex muscle contraction, also called tonic vibration reflex, but the mechanisms behind how vibration could cause musculoskeletal disorders has not yet been described. One suggestion has been that the vibration causes muscular fatigue. This study investigates whether vibration exposure changes the development of muscular fatigue in the trapezius muscle. Thirty-seven volunteers (men and women) performed a sub-maximal isometric shoulder elevation for 3 min. This was repeated four times, two times with induced vibration and two times without. Muscle activity was measured before and after each 3-min period to look at changes in the electromyography parameters. The result showed a significantly smaller mean frequency decrease when performing the shoulder elevation with vibration (-2.51 Hz) compared to without vibration (-4.04 Hz). There was also a slightly higher increase in the root mean square when exposed to vibration (5.7% of maximal voluntary contraction) compared to without (3.8% of maximal voluntary contraction); however, this was not statistically significant. The results of the present study indicate that short-time exposure to vibration has no negative acute effects on the fatiguing of upper trapezius muscle.
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Affiliation(s)
- Charlotte Aström
- Department of Community Medicine and Rehabilitation, Physiotherapy, Umeå University, SE-901 87 Umeå, Sweden.
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50
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Burnett A, Green J, Netto K, Rodrigues J. Examination of EMG normalisation methods for the study of the posterior and posterolateral neck muscles in healthy controls. J Electromyogr Kinesiol 2007; 17:635-41. [PMID: 16899375 DOI: 10.1016/j.jelekin.2006.06.003] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2006] [Revised: 05/16/2006] [Accepted: 06/09/2006] [Indexed: 11/19/2022] Open
Abstract
The purpose of this study was to examine the reliability of normalisation methods used in the study of the posterior and posterolateral neck muscles in a group of healthy controls. Six asymptomatic male subjects performed a total of 12 maximum voluntary isometric contractions (MVIC) and 60%-submaximal isometric contractions (60%-MVIC) against the torque arm of an isokinetic dynamometer whilst surface and intramuscular electromyography (EMG) was recorded unilaterally from representative posterior and posterolateral locations. Reliability was calculated using intra-class correlation coefficient (ICC), relative standard error of measurement (%SEM) and relative coefficient of variation (%CV). Maximal torque output was found to be highly reliable in the directions of extension and right lateral bending when the first of three MVIC contractions was excluded. When averaged across contraction direction, high reliability was found for both surface (MVIC: ICC=0.986, %SEM=7.5, %CV=9.2; 60%-MVIC: ICC=0.975, %SEM=10, %CV=13.7) and intramuscular (MVIC: ICC=0.910, %SEM=20, %CV=19.1; 60%-MVIC: ICC=0.952, %SEM=16.5, %CV=13.5) electrodes. Intramuscular electrodes displayed the least reliability in right lateral bending. The use of visual feedback markedly increased the reliability of 60%-MVIC contractions.
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Affiliation(s)
- Angus Burnett
- School of Physiotherapy, Curtin University of Technology, Bentley, GPO U1987, WA, Australia.
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