Locally applied heat stress during exercise training may promote adaptations to mitochondrial enzyme activities in skeletal muscle

There is some evidence for temperature-dependent stimulation of mitochondrial biogenesis; however, the role of elevated muscle temperature during exercise in mitochondrial adaptation to training has not been studied in humans in vivo. The purpose of this study was to determine the role of elevating muscle temperature during exercise in temperate conditions through the application of mild, local heat stress on mitochondrial adaptations to endurance training. Eight endurance-trained males undertook 3 weeks of supervised cycling training, during which mild (~ 40 °C) heat stress was applied locally to the upper-leg musculature of one leg during all training sessions (HEAT), with the contralateral leg serving as the non-heated, exercising control (CON). Vastus lateralis microbiopsies were obtained from both legs before and after the training period. Training-induced increases in complex I (fold-change, 1.24 ± 0.33 vs. 1.01 ± 0.49, P = 0.029) and II (fold-change, 1.24 ± 0.33 vs. 1.01 ± 0.49, P = 0.029) activities were significantly larger in HEAT than CON. No significant effects of training, or interactions between local heat stress application and training, were observed for complex I-V or HSP70 protein expressions. Our data provides partial evidence to support the hypothesis that elevating local muscle temperature during exercise augments training-induced adaptations to mitochondrial enzyme activity.

Do Dynamic Plantar Pressures Differ Based on Sonographic Evidence of Metatarsophalangeal Joint Synovitis in People With Rheumatoid Arthritis?

OBJECTIVE

The metatarsophalangeal joints (MTPJs) are the most common location for synovitis in people with rheumatoid arthritis (RA), yet their association with plantar foot pressures has received very little attention. This study aimed to determine whether plantar pressures differed based on sonographic evidence of MTPJ synovitis in people with RA.

METHOD

Ultrasound was used to assess synovitis (grey scale synovial hypertrophy and power Doppler signal) in MTPJs 1 to 5 using the combined EULAR/Outcome Measures in Rheumatology scoring system. Peak pressure (PP) and pressure time integrals (PTIs) were assessed during barefoot walking for seven plantar foot regions (heel, midfoot, first metatarsal, second metatarsal, third to fifth metatarsals, hallux, lesser toes). Mixed-effects linear regression was used to determine the difference in PP and PTI between MTPJs with none/minimal synovitis and MTPJs with moderate/severe synovitis.

RESULTS

Thirty-five participants with RA were included. Mean age was 66.3 years and mean disease duration was 22.2 years. Participants with sonographic evidence of moderate/severe synovitis at the first MTPJ had reduced PTI at the hallux compared with those with none/minimal synovitis at this joint (P = 0.039). Participants with moderate/severe synovitis at the second MTPJ and fourth MTPJ had reduced PP and reduced PTI at lesser toes compared with those with none/minimal synovitis in these joints (all P ≤ 0.048). No significant differences were observed for synovitis in other joints.

CONCLUSION

These findings may be suggestive of an inverse relationship between plantar pressure and soft tissue pathology, which is consistent with an offloading strategy and reduced use of the toes during propulsion.

Barriers to and Recommendations for Equitable Access to Healthcare for Migrants and Refugees in Aotearoa, New Zealand: An Integrative Review

The health system in Aotearoa New Zealand is predicated on equity in access to health services as a fundamental objective yet barriers to equitable access for migrant and refugees continue to exist. There is a paucity of studies that synthesise the experiences and realities of migrants, refugees and healthcare providers that hinder access to healthcare and provide recommendations to improve services. This review synthesised these barriers and recommendations, with an aim to improve equitable access to healthcare to migrants and refugees. An integrative review of 13 peer-reviewed research studies from EBSCOhost research databases published between January 2016 and September 2022. Studies included: (i) related to Aotearoa; (ii) had a focus on equitable delivery of healthcare to migrants and refugees; and (iii) had a full English text available. The PRISMA framework guided the reporting of the review. The findings were thematically analysed and presented using a narrative empirical synthesis. The findings were organised into three broad themes: attitudinal barriers, structural barriers, and recommendations. Attitudinal barriers included the lack of culturally competent healthcare providers, discrimination by healthcare providers, and personal, social, and cultural attributes. Structural barriers referred to policies and frameworks that regulated the accessibility of health services such as the cost of healthcare, accessibility and acceptability of interpreter services, length of allocated appointments and long waiting times for an appointment, difficulties navigating the health system, and logistical barriers. Recommendations focused on promoting a sense of belonging, enabling a whole-of-society approach that brings together all sectors involved in providing health care for collective impact, and advocating for government policies to create a system that addresses the core health service access needs. This review provides rich context-specific findings on the barriers to equitable access to healthcare and proposed interventions to enhance equitable health outcomes for migrants and refugees in Aotearoa. The review contributes to relevant policy decisions and has practical implications to build responsive health systems which are inclusive, equitable and best address the health needs of populations from diverse cultural backgrounds.

Health and illness beliefs regarding pain and pain management of New Zealand resident Sāmoan community leaders: A qualitative interpretive study based on Pasifika paradigms

ISSUE ADDRESSED

Ethnic disparities in chronic pain exist in Aotearoa New Zealand, including a greater impact of pain, less access to chronic pain services and less benefit from treatment for Pasifika people. This study investigated Sāmoan health perceptions and beliefs in relation to pain and how it is managed.

METHODS

An interpretive descriptive study was undertaken involving interviews with nine Sāmoan key informants from Aotearoa New Zealand. Interviews explored their beliefs in relation to interpretations of pain and experiences of and preferences for pain management. Interviews were recorded and transcribed. Data were analysed using thematic analysis.

RESULTS

Four main themes were constructed from the data. Pain is interpreted holistically described the attribution of pain to many causes, without limitation to physiological explanations. Stoicism is a character virtue described the predominant belief that pain should be endured without display or complaint. Strength in connectivity described the inherent pain coping strategies that are present within Sāmoan communities. To improve healthcare is to nurture vā described the disconnect Sāmoan people feel from healthcare services and the need to foster relationships to improve health delivery.

CONCLUSIONS

Sāmoan people have beliefs and perceptions about pain and its management that extend beyond traditional Western interpretations. While pain is often endured using traditional strengths within the 'āīga (family) and community, the Sāmoan community faces challenges in receiving healthcare from mainstream pain services. SO WHAT?: Clinicians need to foster stronger relationships with Sāmoan individuals and their 'āīga and appreciate the wider psychosocial context of pain, including spirituality.

Chinese and Indian interpretations of pain: A qualitative evidence synthesis to facilitate chronic pain management

OBJECTIVE

People from minority ethnicities often have a greater impact of chronic pain, are underrepresented at pain services, and may not benefit from treatment to the same extent as dominant cultures. The aim of this study was to review Indian and Chinese cultural views of pain and pain management, as a basis for improving management of chronic pain in migrant populations from these ethnicities.

METHODS

A systematic review of qualitative studies addressing pain beliefs and experiences involving Indian and Chinese participants was conducted. Thematic synthesis was used to identify themes across the studies, and the quality of the articles was appraised.

RESULTS

Twenty-six articles were included, most of which were appraised as high quality. Five themes were identified: Making meaning of pain described the holistic interpretation of the meaning of pain; Pain is disabling and distressing described the marked physical, psychological, and spiritual impact of pain; Pain should be endured described the cultural expectation to suppress responses to pain and not be a burden; Pain brings strength and spiritual growth described the enrichment and empowerment some people experienced through living with pain, and Management of pain goes beyond a traditional or Western approach described the factors that guided people in their use of healthcare.

DISCUSSION

The review identified a holistic interpretation and impact of pain in Indian and Chinese populations, with pain management guided by multiple factors that transcended a single cultural framework. Several strength-based management strategies are recommended based on preferences for traditional treatments and respect for Western healthcare.

A year of pandemic: Levels, changes and validity of well-being data from Twitter. Evidence from ten countries

We use daily happiness scores (Gross National Happiness (GNH)) to illustrate how happiness changed throughout 2020 in ten countries across Europe and the Southern hemisphere. More frequently and regularly available than survey data, the GNH reveals how happiness sharply declined at the onset of the pandemic and lockdown, quickly recovered, and then trended downward throughout much of the year in Europe. GNH is derived by applying sentiment and emotion analysis-based on Natural Language Processing using machine learning algorithms-to Twitter posts (tweets). Using a similar approach, we generate another 11 variables: eight emotions and three new context-specific variables, in particular: trust in national institutions, sadness in relation to loneliness, and fear concerning the economy. Given the novelty of the dataset, we use multiple methods to assess validity. We also assess the correlates of GNH. The results indicate that GNH is negatively correlated with new COVID-19 cases, containment policies, and disgust and positively correlated with staying at home, surprise, and generalised trust. Altogether the analyses indicate tools based on Big Data, such as the GNH, offer relevant data that often fill information gaps and can valuably supplement traditional tools. In this case, the GNH results suggest that both the severity of the pandemic and containment policies negatively correlated with happiness.

Development of a self-guided web-based exercise intervention (SPIN) to treat shoulder pain in people living with spinal cord injury: protocol of a mixed methods study

INTRODUCTION

Chronic shoulder pain is common after spinal cord injury (SCI) and limits community mobility. This leads to loss of independence and reduced quality of life. Evidence suggests that exercises can help reduce shoulder pain. However, cost, expertise and transport barriers frequently limit access to treatment services. The objective of this study is to develop an evidence-based, acceptable, usable and persuasive self-guided web-based exercise intervention to treat shoulder pain in people living with SCI.

METHODS AND ANALYSIS

An iterative and phased person-based approach (PBA) will capture users' perspectives on usability and acceptability to develop guiding principles that will shape the design of the intervention. The intervention will be based on key elements identified through participant input and from evidence identified through systematic and narrative reviews, to ensure the intervention addresses participants' needs and increase the likelihood of uptake. The prototype will be iteratively refined through focus groups and think-aloud sessions. Review data will be synthesised drawing on systematic and narrative review conventions. Qualitative data will be analysed using conventional content analysis (planning phase) and directed content analysis (development phase) to inform intervention design and refinement.

ETHICS AND DISSEMINATION

Ethical approval has been granted by the Auckland University of Technology Ethics Committee (AUTEC) in Auckland, New Zealand. The results of the study will be published in a peer-reviewed journal and presented at relevant national and international conferences. A summary of findings will be presented to key stakeholder groups. We will progress to a definitive trial should the findings from this intervention development study indicate the intervention is acceptable and usable.

Working-age adults' perspectives on living with persistent postural-perceptual dizziness: a qualitative exploratory study

OBJECTIVES

To (a) explore the experiences of persistent postural-perceptual dizziness (PPPD), formerly chronic subjective dizziness on the personal, work and social lives of working-age adults; (b) enhance current understandings of the condition and its impact on the lives of working-age adults and (c) highlight points for consideration and importance to clinical practice.

METHODS

This qualitative exploratory study drew on interpretive descriptive methodology. Working-age adults (n=8) diagnosed with PPPD were recruited from a single New Zealand community-based specialist clinic. Data from interviews (n=8) and postinterview reflections (n=2) were analysed using thematic analysis.

RESULTS

Three themes were constructed: (1) It sounds like I'm crazy-referring to the lack of medical, social and self-validation associated with PPPD; (2) I'm a shadow of my former self-representing the impact of the condition on sense of self and life trajectory and (3) How will I survive?- highlighting individual coping processes.

CONCLUSION

This study contributed to the existing body of knowledge by highlighting the complexity and fluidity of experiencing PPPD. It also drew attention to the tension between the acute illness framework that forms the basis of many therapeutic interactions and the enduring psychosocial support needs of the person experiencing PPPD. The findings highlighted that contextual factors need to be taken into account and that a person-centred and biopsychosocial approach, rather than a condition-specific biomedical approach, is needed for care to be perceived as meaningful and satisfactory.

Factors associated with preoperative attrition in bariatric surgery: a protocol for a systematic review

BACKGROUND

Bariatric surgery results in substantial medical and economic benefits; however, independent studies typically report high patient preoperative attrition rates. Studies have identified individual characteristics and sociodemographic variables of those who complete the surgery compared to those who do not. The aim of the present protocol is to outline a systematic review focussed on identifying the sociodemographic, medical, cultural, psychological, and patient-led factors affecting preoperative attrition in clients who were enrolled in bariatric surgery programmes.

METHODS/DESIGN

The databases Scopus, CINAHL, PsycINFO, Web of Science, and MEDLINE will be searched for retrospective, prospective, and cross-sectional observational studies that have identified any sociodemographic, medical, cultural, psychological, and patient-led factors affecting preoperative attrition in clients who are enrolled in a bariatric surgery programme. English-language articles published between 1997 to 2020, inclusive of adults 18 years or older, will be included in the review. This protocol has been registered in PROSPERO, registration number; CRD42017068557.

DISCUSSION

Presently, there are studies and reviews investigating population-based utilisation and access to bariatric surgery; however, there is a need to review the reasons behind preoperative bariatric surgery patient attrition once selected for bariatric surgery. The results of the review will highlight potential systematic disparities in patient attrition, where gaps in knowledge remain for further investigation, and suggest areas where countermeasures may be focussed for decreasing attrition rates.

SYSTEMATIC REVIEW REGISTRATION

PROSPERO CRD42017068557.

Patterns of foot complaints in systemic lupus erythematosus: a cross sectional survey

BACKGROUND

Foot complaints are common in inflammatory arthropathies such as rheumatoid arthritis and cause considerable disability. However, little is published about the nature and extent of foot complaints in systemic lupus erythematosus (SLE). We aimed to explore foot complaints among people with (SLE) and to evaluate the associations between foot pain and self-reported activities of daily living and well-being.

METHODS

We developed and tested a new 40-item item self-administered questionnaire, using a five-stage development process utilising patient involvement throughout to ensure face and content validity. The self-administered instrument was posted to 406 people with SLE attending adult rheumatology clinics across three health boards in Auckland, New Zealand. The questionnaire enquired about symptoms of foot pain, extra-articular features, anatomical distribution of symptoms according to validated foot-mannequins and the impact of foot symptoms on activities of daily living and well-being.

RESULTS

In total, 406 questionnaires were posted, with 131 responses (response rate 32 %). We found 89 % were women, mean (SD) age 51 (15) years, mean (SD) diagnosis 12.5 (11.1) years. Overall, 77 % of those responding to the questionnaire reported foot pain during their SLE, with 45 % reporting current foot pain. All regions of the feet were affected, with the hindfoot (32 %) and ankles (30 %) most troublesome. The most common self-reported extra-articular foot complaints were cold feet, swelling and numbness. Almost two-thirds (61 %) reported foot pain adversely affected their lives; foot pain prevented sleeping in 36 % and had a negative effect on emotions for 33 %. Only 33 % of participants had seen a podiatrist. Significant association was found between foot pain and standing longer than 15 min (p < 0.001), walking (p < 0.001), climbing stairs (p < 0.001) and going shopping (p < 0.001). Pain was the primary symptom to affect quality of life (47/100).

CONCLUSION

Foot complaints in SLE are heterogeneous in nature, and may have a substantial negative impact on patient well-being. Foot complaints need to be addressed to reduce the burden of SLE and our findings support the need for wider access to specific foot care services.