Do therapeutic exercises impact supraspinatus tendon thickness? Secondary analyses of the combined dataset from two randomised controlled trials in patients with rotator cuff-related shoulder pain.

BACKGROUND: The mechanistic response of rotator cuff tendons to exercises within the context of rotator cuff-related shoulder pain (RCRSP) remains a significant gap in current research. A greater understanding of this response can shed light on why individuals exhibit varying responses to exercise interventions. It can also provide information on the influence of certain types of exercise on tendons. The primary aim of this article is to explore if changes in supraspinatus tendon thickness (SSTT) ratio differ between exercise interventions (high load vs. low load). The secondary aims are to explore if changes in SSTT ratio differ between ultrasonographic tendinopathy subgroups (reactive vs. degenerative) and if there are associations between tendinopathy subgroups, changes in tendon thickness ratio, and clinical outcomes (disability). METHODS: This study comprises secondary analyses of the combined dataset from two randomized controlled trials that compared high and low-load exercises in patients with RCRSP. In those trials, different exercise interventions were compared: 1) progressive high-load strengthening exercises, and 2) low-load strengthening with or without motor control exercises. In one trial, there was also a third group that was not allocated to exercises (education only). Ultrasound-assessed SSTT ratio, derived from comparing symptomatic and asymptomatic sides, served as the primary measure in categorizing participants into tendinopathy subgroups (reactive, normal and degenerative) at baseline. RESULTS: Data from 159 participants were analyzed. Two-way repeated measures ANOVAs revealed significant Group (p<0.001) and Group X Time interaction (p<0.001) effects for the SSTT ratio in different tendinopathy subgroups, but no Time effect (p=0.63). Following the interventions, SSTT ratio increased in the "Degenerative" subgroup (0.14 [95% CI: 0.09 to 0.19]), decreased in the "Reactive" subgroup (-0.11 [95% CI: -0.16 to -0.06]), and remained unchanged in the "Normal" subgroup (-0.01 [95% CI: -0.04 to 0.02]). There was no Time (p=0.21), Group (p=0.61), or Group X Time interaction (p=0.66) effect for the SSTT ratio based on intervention allocation. Results of the linear regression did not highlight any significant association between the tendinopathy subgroup (p=0.25) or change in SSTT ratio (p=0.40) and change in disability score. CONCLUSION: Findings from this study suggest that, over time, SSTT in individuals with RCRSP tends to normalize, compared to the contralateral side, regardless of the exercise intervention. Different subgroups of symptomatic tendons behave differently, emphasizing the need to potentially consider tendinopathy subtypes in RCRSP research. Future adequately powered studies should investigate how those different tendinopathy subgroups may predict long-term clinical outcomes.

Assessing the Impact of COVID-19 on Amateur Runners' Performance: An Analysis through Monitoring Devices.

This retrospective study aimed to analyze the return to running of non-professional runners after experiencing asymptomatic or mild COVID-19. Participants aged 18-55 years who maintained a training load of ≥10 km/week for at least three months prior to diagnosis and utilized Garmin/Polar apps were included. From these devices, parameters such as pace, distance, total running time, cadence, and heart rate were collected at three intervals: pre-COVID, immediately post-COVID, and three months after diagnosis. The Wilcoxon signed rank test was used for analysis (significance was set at ≤0.05). Twenty-one participants (57.1% male; mean age 35.0 ± 9.8 years) were included. The results revealed a significant decrease in running duration and distance two weeks after diagnosis, without significant changes in other parameters. Three months after infection, no differences were observed compared to pre-infection data, indicating a return to the pre-disease training load. These findings underscore the transient impact of COVID-19 on training performance among non-professional runners with mild or asymptomatic symptoms, highlighting the importance of tailored strategies for resuming running after infection.

Relationship between pain and proprioception among individuals with rotator cuff-related shoulder pain.

BACKGROUND: Individuals with rotator cuff-related shoulder pain (RCRSP) have altered proprioception. The relationship between shoulder pain and proprioception is not well understood. PURPOSE: This study aimed to investigate the relationship between shoulder pain and proprioception. STUDY DESIGN: This was a cross-sectional comparative study. METHODS: Twenty-two participants with RCRSP (mean age 27.6 ± 4.8 years) and 22 matched pain-free participants (23.4 ± 2.5 years) performed two upper limb active joint position sense tests: (1) the Upper Limb Proprioception Reaching Test (PRO-Reach; reaching toward seven targets) in centimeters and (2) Biodex System at 90% of maximum internal rotation in degrees. Participants performed three memorization and three reproduction trials blindfolded. The proprioception error (PE) is the difference between the memorized and estimation trials. Pain levels were captured pre- and post-evaluation (11-point Likert Numerical Pain Rating Scale). Relationships between PE and pain were investigated using independent t-tests and Spearman rank correlations. RESULTS: Overall, 22.7% RCRSP participants indicated an increase in pain following the PRO-Reach (X̅ increase of 1.4 ± 1.5 points), while 59% did so with the Biodex (X̅ increase of 2.3 ± 1.8 points), reflecting a clinically important increase in pain. Weak-to-moderate correlations between pain and PEs were found with the Biodex (r = 0.39-0.53) and weak correlations with the PRO-Reach (r = -0.26 to 0.38). Concerning PEs, no significant differences were found between groups with the Biodex (p = 0.32, effect size d = -0.31 [-0.90 to 0.29]). The RCRSP participants demonstrated lower PEs with the PRO-Reach in elevation compared to pain-free participants (global X̅ = 4.6 ± 1.2 cm vs 5.5 ± 1.5 cm; superior 3.8 ± 2.1 cm vs 5.7 ± 2.9 cm; superior-lateral nondominant targets 4.3 ± 2.2 cm vs 6.1 ± 2.8 cm; p = 0.02-0.05, effect size d = 0.72-0.74 [0.12-1.3]). CONCLUSIONS: Individuals with RCRSP demonstrated better upper limb proprioception in elevation, suggesting a change to interoception (sensory reweighting) in the presence of pain.

"I wanted to know what was hurting so much": a qualitative study exploring patients' expectations and experiences with primary care management.

BACKGROUND: The management of shoulder pain is challenging for primary care clinicians considering that 40% of affected individuals remain symptomatic one year after initial consultation. Developing tailored knowledge mobilization interventions founded on evidence-based recommendations while also considering patients' expectations could improve primary care for shoulder pain. The aim of this qualitative study is to explore patients' expectations and experiences of their primary care consultation for shoulder pain. METHODS: In this qualitative study, participants with shoulder pain and having consulted a primary care clinician in the past year were interviewed. All the semi-structured interviews were transcribed verbatim, and inductive thematic analysis was performed to identify themes related to the participants' expectations and experiences of primary care consultations for shoulder pain. RESULTS: Thirteen participants with shoulder pain were interviewed (8 women, 5 men; mean age 50 ± 12 years). Eleven of them initially consulted a family physician or an emergency physician, and two participants initially consulted a physiotherapist. Four overarching themes related to patients' expectations and experiences were identified from our thematic analysis: 1) I can't sleep because of my shoulder; 2) I need to know what is happening with my shoulder; 3) But… we need to really see what is going on to help me!; and 4) Please take some time with me so I can understand what to do!. Several participants waited until they experienced a high level of shoulder pain before making an appointment since they were not confident about what their family physician could do to manage their condition. Although some participants felt that their physician took the time to listen to their concerns, many were dissatisfied with the limited assessment and education provided by the clinician. CONCLUSIONS: Implementing evidence-based recommendations while considering patients' expectations is important as it may improve patients' satisfaction with healthcare. Several participants reported that their expectations were not met, especially when it came to the explanations provided. One unexpected finding that emerged from this study was the waiting period between the onset of shoulder pain and when patients decided to consult their primary care clinician.

Does the addition of motor control or strengthening exercises to education result in better outcomes for rotator cuff-related shoulder pain? A multiarm randomised controlled trial.

OBJECTIVE: To compare the short-term, mid-term and long-term effects between three interventions (education only, education and strengthening exercises, education and motor control exercises) for rotator cuff-related shoulder pain (RCRSP) on symptoms and function. METHODS: 123 adults presenting with RCRSP took part in a 12-week intervention. They were randomly assigned to 1 of 3 intervention groups. Symptoms and function were evaluated at baseline and at 3 weeks, 6 weeks, 12 weeks and 24 weeks using the Disability of Arm, Shoulder and Hand Questionnaire (QuickDASH) (primary outcome) and Western Ontario Rotator Cuff Index (WORC). Linear mixed modelling was used to compare the effects of the three programmes on the outcomes. RESULTS: After 24 weeks, between-group differences were -2.1 (-7.7 to 3.5) (motor control vs education), 1.2 (-4.9 to 7.4) (strengthening vs education) and -3.3 (-9.5 to 2.8) (motor control vs strengthening) for the QuickDASH and 9.3 (1.5 to 17.1) (motor control vs education), 1.3 (-7.6 to 10.2) (strengthening vs education) and 8.0 (-0.5 to 16.5) (motor control vs strengthening) for the WORC. There was a significant group-by-time interaction (p=0.04) with QuickDASH, but follow-up analyses did not reveal any clinically meaningful between-group differences. There was no significant group-by-time interaction (p=0.39) for the WORC. Between-group differences never exceeded the minimal clinically important difference of QuickDASH or WORC. CONCLUSION: In people with RCRSP, the addition of motor control or strengthening exercises to education did not lead to larger improvements in symptoms and function compared with education alone. Further research should investigate the value of providing stepped care by identifying individuals who may only need education and those who would benefit from the addition of motor control or strengthening exercises. TRIAL REGISTRATION NUMBER: NCT03892603.

Reducing Noise, Artifacts and Interference in Single-Channel EMG Signals: A Review.

Electromyography (EMG) is gaining importance in many research and clinical applications, including muscle fatigue detection, control of robotic mechanisms and prostheses, clinical diagnosis of neuromuscular diseases and quantification of force. However, EMG signals can be contaminated by various types of noise, interference and artifacts, leading to potential data misinterpretation. Even assuming best practices, the acquired signal may still contain contaminants. The aim of this paper is to review methods employed to reduce the contamination of single channel EMG signals. Specifically, we focus on methods which enable a full reconstruction of the EMG signal without loss of information. This includes subtraction methods used in the time domain, denoising methods performed after the signal decomposition and hybrid approaches that combine multiple methods. Finally, this paper provides a discussion on the suitability of the individual methods based on the type of contaminant(s) present in the signal and the specific requirements of the application.

Electromyographic Activity of the Pelvic Floor Muscles and Internal Oblique Muscles in Women during Running with Traditional and Minimalist Shoes: A Cross-Over Clinical Trial.

The study aimed to investigate the effects of footwear on the electromyographic (EMG) activity of pelvic floor muscles (PFMs) and internal oblique (IO) muscles during running at different speeds. The study also aimed to explore the correlation between EMG activity of PFMs and IO muscles and participants' morphological characteristics. Ten nulliparous female runners were included in the study. The participants ran for 90 s at speeds of 9, 11, and 13 km/h wearing both traditional and minimalist shoes. EMG outcomes were presented as a percentage of maximum voluntary contraction (%MVC). Comparative analysis was conducted using the Wilcoxon rank test. Correlational analysis was performed using the Rho-Spearman correlation coefficient. The %MVC for the IO muscles was significantly lower when using minimalist shoes compared to traditional shoes (p = 0.04). No statistically significant differences were found for the PFMs (p > 0.05). The study also observed large correlations between age and %MVC of the PFMs and IO muscles (rho = -0.64; p = 0.04). Minimalist shoes decreased the activity of IO muscles in female runners. However, no significant differences in EMG activity of PFMs were found when comparing traditional and minimalist footwear. The long-term effects of minimalist footwear on EMG activity of PFMs and IO muscles, as well as their relationship to morphological characteristics, require further investigation.

French Version of the Musculoskeletal Pain Intensity and Interference Questionnaire for Professional Orchestra Musicians (MPIIQM-F): Cross-Cultural Adaptation and Preliminary Validation.

BACKGROUND: The Musculoskeletal Pain Intensity and Interference Questionnaire for Professional Orchestra Musicians (MPIIQM) is a prominent patient-reported outcome measure (PROM) in the musicians' health literature. It has been published in at least four languages, but not in French. AIMS: To cross-culturally adapt the MPIIQM into French and establish the preliminary psychometric properties (validity, reliability, and responsiveness) of the MPIIQM-F. METHODS: Standardized cross-cultural adaptation methods included forward translations, an expert committee, and verbal field tests in the target population. Psychometric properties were assessed in a population of French-speaking professional orchestra musicians who participated in three evaluation sessions. Evaluated properties include content, face, structural and construct validity, reliability (internal consistency, test-retest reliability, minimal detectable change [MDC], measurement error), and responsiveness (effect size and standardized response means [SRM]). RESULTS: Sixty-one French-speaking orchestra musicians participated in the psychometric validation. Exploratory factor analysis revealed a two-factor solution equivalent to previous versions, confirming the Pain Intensity and Interference subscales. Spearman correlations for construct validity were as hypothesized for four of six hypotheses (minor deviances for the other two hypotheses) using the Brief Pain Inventory, Disability of the Arm, Shoulder and Hand Performing Arts Module, and PROMIS Global Health Scale as comparators. Reliability results demonstrated high internal consistency (Cronbach's a=0.84-0.89), excellent test-retest reliability (intraclass correlation coefficient = 0.91-0.97), and small measurement error with MDC for the overall scale <10%. Responsiveness resulted in moderate to large effect sizes and SRM (0.54-0.87). CONCLUSIONS: Preliminary validation of the MPIIQM-F suggests good validity, reliability, and responsiveness, indicating its suitability for use in French-speaking orchestra musicians.

Patient-reported outcome measures of musculoskeletal symptoms and psychosocial factors in musicians: a systematic review of psychometric properties.

PURPOSE: To systematically review patient-reported outcome measures (PROMs) of musicians' musculoskeletal symptoms (MSS) and psychosocial factors and their psychometric properties. METHODS: Six databases were searched. Studies evaluating at least one psychometric property of a PROM developed for or adapted to adult musicians and measuring MSS or occupational psychosocial factors were included. Study quality was evaluated using mainly the COSMIN checklist. RESULTS: Twenty-eight studies were included, yielding 27 PROMs. Most COSMIN scores are Doubtful or Inadequate. Validity and internal consistency are the most evaluated psychometric properties. Test-retest reliability was evaluated in five studies (all inadequate sample sizes), measurement error in one, and responsiveness in none. The English, German and Polish Musculoskeletal Pain Intensity and Interference Questionnaire for professional orchestra Musicians (MPIIQM), the 40-item English and Peruvian Spanish Kenny Music Performance Anxiety Inventory (KMPAI) and the Psychosocial Risks Questionnaire for Musicians (PRQM, Polish) are the most robust scales for their constructs. Their internal consistency is sufficient (Cronbach's α ≥ 0.70). Test-retest reliability and construct validity are only sufficient for the German MPIIQM (intraclass correlation coefficients ≥ 0.70). However, results are based on one study per PROM; all require further validation before validity, reliability and responsiveness can be confirmed. CONCLUSION: Due to generally poor methodological quality and one study per PROM on average, none can be confirmed valid, reliable and responsive. Yet, preliminary validation recommends prudent use of some PROMs pending further validation. Robust PROM studies are needed to fill the important literature gap regarding musician-specific, validated PROMs.

Does musculoskeletal pain interfere with motor learning in a gait adaptation task? A proof-of-concept study.

BACKGROUND: Experimental pain during gait has been shown to interfere with learning a new locomotor task. However, very few studies have investigated the impact of clinical pain on motor learning due to the challenges associated with clinical populations. OBJECTIVE: The first objective of this proof-of-concept study was to determine the feasibility to obtain two groups of participants with chronic ankle pathology with or without residual pain while walking. The second objective was to evaluate the impact of clinical musculoskeletal pain on motor learning during gait. METHODS: Participants with chronic isolated ankle pathology were recruited and their personal and clinical characteristics were collected (functional performance, dorsiflexion maximal strength, range of motion). To assess motor acquisition (Day 1) and retention (Day 2), participants performed an adaptation task on two consecutive days that consisted of walking while experiencing a perturbing force applied to the ankle. The level of pain during the task was measured, and participants who reported pain were attributed to the Pain group and participants without pain to the No Pain group. Learning performance was assessed by measuring ankle kinematics (Mean plantarflexion absolute error) and learning strategy was assessed by measuring the Relative timing of error and the tibialis anterior (TA) electromyographic activity. RESULTS: Twenty-five participants took part in the experiment. Eight (32%) were excluded because they could not be included in either the Pain or No Pain group due to the intermittent pain, leaving eight participants in the Pain group and nine in the No Pain group. Both groups were similar in terms of baseline characteristics. Musculoskeletal pain had no influence on learning performance, but the learning strategy were different between the two groups. The No Pain group showed a TA activity reduction before perturbation between the days, while the Pain group did not. CONCLUSION: Some barriers were identified in studying musculoskeletal pain including the high rates of participants' exclusion, leading to a small sample size. However, we showed that it is feasible to investigate clinical pain and motor learning. From the results of this study, musculoskeletal pain has no influence on motor learning performance but influences the learning strategy.

"It feels like an endless fight": a qualitative study exploring healthcare utilization of persons with rheumatic conditions waiting for pain clinic admission.

BACKGROUND: Individuals living with a rheumatic pain condition can face delays in accessing pain clinics, which prevents them from receiving timely treatment. Little is known regarding their specific healthcare utilization in order to alleviate pain while waiting to obtain services in pain clinics. Hence, the aim of this study was to explore the perceptions and experiences of persons living with rheumatic conditions regarding healthcare utilization while waiting to access a pain clinic. METHODS: In this qualitative descriptive study, semi-structured interviews were conducted with adults living with a painful rheumatic condition that reported either being waiting for admission in a pain clinic, having been referred but then denied pain clinic services, or having received services during the previous six months, in the province of Quebec, Canada. The interviews were transcribed verbatim, and an inductive thematic analysis was performed. RESULTS: Twenty-six individuals were interviewed (22 women and 4 men; mean age 54 ± 10 years). Three themes were identified: 1) lacking guidance in identifying solutions to their complex and multidimensional needs, 2) struggling to obtain and maintain services due to systemic access barriers, and 3) displaying resilience through a search for accessible and sustainable self-management strategies. CONCLUSIONS: The current approaches and structures of health services fail to adequately answer the service needs of individuals experiencing painful rheumatic conditions. Important shifts are required in pain education, in increasing access to multidisciplinary approaches at the primary care level and in breaking down barriers individuals with chronic pain face to receive appropriate and timely care.

Measuring functional outcome in Dupuytren's disease: A systematic review of patient-reported outcome measures.

BACKGROUND: Functional impairments related to Dupuytren's disease (DD) can be assessed using patient-reported outcome measures (PROMs). A systematic review was published in 2013 on outcome measures for assessing treatment in individuals with DD; however, several articles have since been published on this matter. PURPOSE: To conduct a systematic review to analyze the quality and content of the evidence on the psychometric properties of PROMs used in individuals with DD. STUDY DESIGN: Systematic review. METHODS: CINAHL, EBM reviews, Embase, Medline, and Web of Science were searched to identify studies evaluating the psychometric properties of PROMs used with individuals with DD. All studies retained were appraised by two independent assessors using two validated critical appraisal tools. RESULTS: Fifteen articles on the psychometric properties of 10 PROMs were included. Construct validity and responsiveness were the most studied. Eighty percent of the studies were of good to very good methodological quality according to MacDermid's Critical appraisal checklist for psychometric articles, whereas 67% of the studies comported risks of bias according to the COSMIN checklist. Of the 10 PROMs, three were specifically developed for DD but remain mostly under-studied for their psychometric properties (≤ 2 studies for the SDSS and DIF-CHUM). The QuickDASH, MHQ, BriefMHQ, and URAM present moderate to good convergent validity. Test-retest reliability was found to be good for the MHQ, briefMHQ, URAM, SDSS, SF-36, and the multi-attribute of the HUI-3. The MHQ and BriefMHQ are highly responsive. CONCLUSION: There is a need for more psychometric studies on the PROMs used with individuals with DD. However, to date, the results included in this systematic review support that the MHQ and briefMHQ are the PROMs with the most acceptable psychometric properties.

Pediatric Interfacility Transport Curriculum: Its Impact on the Pediatric Intensive Care and Emergency Medicine Fellows' Performance and Confidence.

OBJECTIVE: Pediatric interfacility transports are frequent. Despite the absence of a formal pediatric transport curriculum in eastern Canada, directly managing patients during transport and medical direction of the referring center and transport team are part of the pediatric critical care medicine (PCCM) and pediatric emergency medicine (PEM) program requirements. The authors developed a pediatric interfacility transport curriculum and measured its impact on fellows' confidence and performance. METHODS: This was a pilot interventional prospective study in Montreal, Canada. Postcurriculum surveys were used to measure confidence, and high-fidelity simulations were used to measure performance. A target threshold for confidence was defined before implementation, and pre- and post values were compared. The simulation scenario and assessment checklist were locally developed. RESULTS: The participants were 11 PCCM and 3 PEM fellows. The content of the curriculum and educational methods were selected based on the literature and a needs assessment survey. All participants rated themselves as confident at the end of the curriculum. Eighty-three percent of the participants were deemed proficient with a perfect interrater agreement. CONCLUSION: The pediatric transport curriculum had a positive impact on PEM and PCCM fellows' confidence and performance in transport. Further studies should look at the impact of such a curriculum on participants' real-life performance and patient care.

Region-specific Exercises vs General Exercises in the Management of Spinal and Peripheral Musculoskeletal Disorders: A Systematic Review With Meta-analyses of Randomized Controlled Trials.

OBJECTIVE: To compare the efficacy of region-specific exercises to general exercises approaches for adults with spinal or peripheral musculoskeletal disorders (MSKDs). DATA SOURCES: Electronic searches were conducted up to April 2020 in Medline, Embase, Cochrane Central Register of Controlled Trials, and Cumulative Index to Nursing and Allied Health. STUDY SELECTION: Randomized control trials (RCTs) on the efficacy of region-specific exercises compared to general exercises approaches for adults with various MSKDs. DATA EXTRACTION: Mean differences and standardized mean differences were calculated using random-effects inverse variance modeling. Eighteen RCTs (n=1719) were included. Cohorts were composed of participants with chronic neck (n=313) or low back disorders (n=1096) and knee osteoarthritis (OA) (n=310). DATA SYNTHESIS: Based on low-quality evidence in the short-term and very low-quality in the mid- and long-term, there were no statistically significant differences between region-specific and general exercises in terms of pain and disability reductions for adults with spinal disorders or knee OA. Secondary analyses for pain reduction in the short-term for neck or low back disorders did not report any statistically significant differences according to very low- to low-quality of evidence. CONCLUSIONS: The difference in treatment effect remains uncertain between region-specific and general exercises approaches. Based on very low- to low-quality evidence, there appear to have no differences between both types of exercise approaches for pain reduction or disability for adults with spinal disorders. Future trials may change the current conclusions. More evidence is needed for region-specific exercises compared to general exercises for other peripheral MSKDs including knee OA.

A qualitative study exploring the implementation determinants of rehabilitation and global wellness programs for orchestral musicians.

OBJECTIVE: To explore the facilitators and barriers to implementation of a pilot workplace rehabilitation and global wellness program for orchestral musicians. DESIGN: Qualitative study comprising focus groups and interviews.Setting: Workplace of conservatory and orchestral musicians and administrators. PARTICIPANTS: Musicians, administrators and a conductor from two professional orchestras; tertiary-level orchestral students and an administrator from a conservatory of music. INTERVENTIONS: We held four focus groups and two interviews to document the perspectives of the participants concerning the implementation determinants of a pilot workplace rehabilitation and wellness program (exercises and health-related education). Meetings consisted of questions based on the Consolidated Framework for Implementation Research. Thematic content analysis was conducted using this same framework, with subcoding according to the Theoretical Domains Framework. RESULTS: Fourteen musicians and five administrators participated. Results suggest that the implementation determinants for the pilot and future programs rely mainly on the Inner Setting, that is, what musicians refer to as 'the music world', specifically cultural elements such as pain beliefs (e.g. no pain no gain) and lack of resources and time (barriers). Characteristics of Individuals such as social influences amongst colleagues and beliefs about the consequences of self-care or lack thereof, and Intervention Characteristics such as complexity can be facilitators or barriers. All emerging themes have an undercurrent that lies in the Inner Setting. CONCLUSION: Musicians' culture, currently a barrier, is a crucial determinant of rehabilitation and wellness program implementation in the orchestral musicians' workplace. A focus on musicians' workplace environment is necessary to optimise implementation and intervention impacts.

The burden of waiting to access pain clinic services: perceptions and experiences of patients with rheumatic conditions.

BACKGROUND: Extensive waiting times before receiving services is a major barrier to adequate pain management. Waiting times may have a detrimental impact on patients' conditions and quality of life. However, there remains a lack of knowledge on the actual experiences of patients waiting to receive services, especially for those with rheumatic conditions. The present study aimed to gain an in-depth understanding of perceptions and experiences of patients with rheumatic conditions regarding access to pain clinic services. The secondary objective was to identify possible solutions to improve this access according to patients' perspectives. METHODS: This qualitative study based on semi-structured interviews was conducted with adults with rheumatic conditions waiting to access pain clinics in the province of Quebec, Canada. Interviews were transcribed verbatim and analyzed using thematic content analysis. RESULTS: Twenty-six participants were interviewed (22 women and 4 men; mean age 54 ± 10 years). Four main themes were identified: 1) the perception that waiting time is unacceptably long; 2) how the lack of information affects patients' experiences of waiting; 3) patients' various expectations towards the pain clinic, from high hopes to disillusionment and 4) carrying an emotional, physical and financial burden resulting from the wait. Participants reported several solutions to improve the experience of waiting, including providing information to patients, increasing resources, improving prioritization processes and care coordination, and providing alternative interventions to patients during the wait. CONCLUSIONS: For patients with rheumatic conditions, access to pain clinic services is challenging due to extensive waiting times. The burden it imposes on them adds to the existing challenge of living with a chronic rheumatic condition. The solutions identified by participants could serve as building blocks to develop and implement measures to improve patients' experience of accessing pain-related services.

Shoulder Rotator Cuff Disorders: A Systematic Review of Clinical Practice Guidelines and Semantic Analyses of Recommendations.

OBJECTIVES: To perform a systematic review of clinical practice guidelines (CPGs) and semantic analysis of specific clinical recommendations for the management of rotator cuff disorders in adults. DATA SOURCES: A systematic bibliographic search was conducted up until May 2018 in Medline, Embase, and Physiotherapy Evidence Database, or PEDro, databases, in addition to 12 clinical guidelines search engines listed on the Appraisal of Guidelines for Research and Evaluation (AGREE) website. STUDY SELECTION: Nine CPGs on the management of rotator cuff disorders in adults or workers, available in English or French, and published from January 2008 onward, were included and screened by 2 independent reviewers. DATA EXTRACTION: CPG methodology was assessed with the AGREE II checklist. A semantic analysis was performed to compare the strength of similar recommendations based on their formulation. The recommendations were categorized in a standardized manner considering the following 4 levels: "essential," "recommended," "may be recommended," and "not recommended." DATA SYNTHESIS: Methodological quality was considered high for 3 CPGs and low for 6. All CPGs recommended active treatment modalities, such as an exercise program in the management of rotator cuff disorders. Acetaminophen or nonsteroidal anti-inflammatory drug prescriptions and corticosteroid injections were presented as modalities that may be recommended to decrease pain. Recommendations related to medical imagery and surgical opinion varied among the guidelines. The most commonly recommended return-to-work strategies included intervening early, use of a multidisciplinary approach, and adaptation of work organization. CONCLUSIONS: Only 3 CPGs were of high quality. The development of more rigorous CPGs is warranted.

Alternative Representation of the Shoulder Orientation Based on the Tilt-and-Torsion Angles.

The International Society of Biomechanics (ISB) has proposed standardized recommendations for recording human joint motion. The Euler angles-the orientation representation currently proposed by the ISB-have two drawbacks, namely, the issue of singularities (gimbal lock) and the difficulty to obtain clinical and interpretable orientation representation for compound movements. The orientation representation of the shoulder joint with the Euler angles is particularly challenging due to its broad range of motion. This paper proposes and evaluates an alternative orientation representation for shoulder movement based on the tilt-and-torsion representation, a method that aims at providing a more clinically interpretable solution for describing joint movements compared to the standard Euler angles. Three studies were performed to compare the different orientation representation methods. The first two studies consist in simulations of arm elevation in different planes. The third study is an experiment using inertial-measurement-units with one test subject performing shoulder elevation movements in different planes. The tilt-and-torsion representation is then compared with different Euler angle conventions. The results show that Euler angles are biased or clinically uninterpretable for compound movements. Conversely, tilt-and-torsion representation does not suffer from these limitations. Although not extensive, the experiments suggest that the tilt-and-torsion representation has the potential to better represent human movements and provide more clinically interpretable results than the Euler angles.

Effect of thermal therapy and exercises on acute low back pain: a protocol for a randomized controlled trial.

BACKGROUND: Low back pain (LBP) is the first cause of years lived with disability worldwide. This is due to the development of chronic pain. Thus, it is necessary to identify the best therapeutic approaches in the acute phase of LBP to limit the transition to chronic pain. Superficial heat presents the highest level of evidence for short-term reduction in pain and disability in acute LBP. Physical activity is also recommended to avoid transition to chronic LBP, but there is a lack of evidence to determine its effect to reduce acute LBP. Also, the long-term effects of these interventions are unknown. This is a protocol for a randomized controlled trial (RCT) to determine the short and long-term effects of wearable continuous low-level thermal therapy, in combination with exercises or not, on disability and pain. METHODS/DESIGN: Sixty-nine participants with acute LBP will be randomly assigned to one of three intervention programs: 1) thermal therapy, 2) thermal therapy + exercises, and 3) control. The interventions will be applied for 7 continuous days. The primary outcome will be disability and secondary outcomes will be pain intensity, pain-related fear, self-efficacy, number of steps walked and perception of change. The evaluators will be blinded to the interventions, and participants will be blinded to other groups' interventions. Primary and secondary outcomes will be compared between intervention groups. DISCUSSION: This study will provide new evidence about acute LBP treatments, to limit transition to chronicity. This will be the first study to measure the long-term effects of wearable continuous low-level thermal therapy, combined or not to exercises. TRIAL REGISTRATION: This RCT has been retrospectively registered on ClinicalTrials.gov ( NCT03986047 ) on June 14th, 2019.

Physiotherapists' ability to diagnose and manage shoulder disorders in an outpatient orthopedic clinic: results from a concordance study.

BACKGROUND: Advanced practice physiotherapy has emerged as a promising solution to improve health care access because access to orthopedic care is limited in several countries. However, evidence supporting advanced practice physiotherapy models for the management of shoulder pain remains scarce. The purpose of this study was to establish diagnostic, surgical triage, and medical imaging agreement between advanced practice physiotherapists (APPs) and orthopedic surgeons (OSs) for the management of patients with shoulder disorders in an outpatient orthopedic clinic. METHODS: Patients referred to an OS for shoulder complaints were recruited and independently assessed by an OS and an APP. Each provider completed a standardized form indicating diagnosis, imaging test requests, and triage of surgical candidates. Patient satisfaction with care was recorded with the 9-item Visit-Specific Satisfaction Questionnaire (VSQ-9). Inter-rater concordance was calculated with the Cohen κ, prevalence-adjusted bias-adjusted κ, and associated 95% confidence interval (CI). We used χ2 tests to compare differences between providers in terms of treatment plan options and Student t tests to compare patient satisfaction between providers. RESULTS: Fifty participants were evaluated. Good diagnostic agreement was observed between providers (κ, 0.80; 95% CI, 0.67-0.93). Agreement for triage of surgical candidates was moderate (κ, 0.46; 95% CI, 0.21-0.71) as APPs tended to refer patients more often to OSs for further evaluation. Imaging test request agreement was moderate as well (κ, 0.42; 95% CI, 0.19-0.66). Patient satisfaction with care was high, with no significant differences found between providers (P = .70). CONCLUSION: APPs could improve access to orthopedic care for shoulder disorders by safely initiating patient care without compromising satisfaction. These results support further development and evaluation of APP care for orthopedic patients presenting with shoulder disorders.