Bridging the chasm between patients' needs and current rehabilitation care: perceptions of adults presenting for primary care in the Eastern Cape.

BACKGROUND: The need for rehabilitation in low-to-middle income countries (LMICs) is rapidly increasing as more people are living longer with chronic diseases. Primary health care (PHC) is ideally placed to provide the spectrum of care required to meet most of the complex and evolving population's health needs locally. This study aimed to describe the patient journeys of adults attending primary care in the Eastern Cape province of South Africa to understand the factors that affected their access to primary care rehabilitation services (or the lack thereof) and obtain suggestions on how rehabilitation may be enhanced at primary care. METHODS: A maximum variation sampling approach was used to purposefully select persons with varied chronic health conditions and demographic characteristics to gain diverse perspectives regarding their rehabilitation needs and ways in which the current rehabilitation services at primary care may be enhanced. Data were collected via face-to-face semi-structured interviews between March and June 2022 which were electronically recorded. Inductive thematic analysis of transcribed data was done and coded in Atlas.ti.22®. RESULTS: Twenty-five adult patients participated in the study. The patients had different experiences at their local PHC facilities that affected their access to rehabilitation at primary care. The study found that most patients were not able to access rehabilitation at primary care. There were several personal and contextual factors that resulted in the patients having a low perceived need to receive rehabilitation that potentially lowered patients' demand for and utilization of rehabilitation at primary care. Patients suggested increasing rehabilitation workforce at primary care, improving availability of assistive devices, increasing their knowledge regarding rehabilitation, and facilitating socio-economic integration into their communities. CONCLUSIONS: Patients attending primary care are not guaranteed access to rehabilitation by virtue of having entered the PHC system. It is important to consider the patient perspectives regarding their health needs and suggestions for enhancing care.

Factors affecting quality of life in adults with HIV: A local cross-sectional study.

Background: Understanding health-related quality of life (HRQOL) among people with HIV (PWH) can inform strategies to maintain or improve health and functioning. Most HRQOL research has focused on resource-rich settings, underrepresenting younger cohorts in low-resource settings. Objectives: To assess HRQOL and associated factors in PWH visiting two primary healthcare clinics in the Western Cape, South Africa. Method: A cross-sectional study included 48 PWH (58.3% women; mean age: 39.2 [10.3]). Health-related QOL was assessed using EQ-5D-5L descriptive domains, visual analogue scale (EQ-VAS), and index score (EQ-index). Mobility was assessed using clinical tests. Tobit regression determined associations. Results: Mean and median EQ-VAS scores were 88.14 (16.35) and 95.00. Mean and median EQ-index scores were 0.84 (0.10) and 0.90. PWH reported problems as pain/discomfort (35.4%), depression/anxiety (25.0%), mobility (22.9%), usual activities (18.7%) and self-care (12.5%) domains. Slow chair rise (p = 0.012), low income (p = 0.030), longer HIV duration (p = 0.009) and polypharmacy (p = 0.034) were associated with lower HRQOL. Antiretroviral therapy (ART) adherence was associated with higher HRQOL (p = 0.020). Conclusion: Despite high overall HRQOL, specific domains presented challenges to PWH. Health-related QOL was associated with chair rise repetitions, income, HIV duration, polypharmacy, and treatment adherence. Comprehensive care and contextualised interventions to address these through rehabilitation, including health promotion, are proposed strategies for future investigation. Clinical implications: Clinicians should be cognisant of potential physical and mental functioning problems, and factors related to drug therapy, socio-economic status and disease duration that may affect HRQOL even in seemingly unimpaired PWH.

Functioning Problems Associated with Health Conditions with Greatest Disease Burden in South Africa: A Scoping Review.

A notable rise in health-related disability for which evidence-based rehabilitation is beneficial is evident in low-to-middle income countries. This scoping review aimed to systematically identify and map the most common functioning problems associated with health conditions that contribute most to disability in South Africa using the International Classification of Functioning, Disability and Health (ICF) framework. Peer-reviewed evidence published from January 2006 to December 2021 was systematically searched from five databases. Some 268 studies reporting on functioning problems (impairments, activity limitations, and participation restrictions) in South African adults (>18 years) related to 10 health conditions were included. A total of 130 different functioning problems were mapped to the ICF. The most prevalent problems (top 20) were related to mobility, pain, and mental health but spanned across several ICF domains and were mostly in patients at primary care. The high prevalence and wide range of functioning problems may be particularly burdensome on an already strained primary health care (PHC) system. This points towards targeted planning of innovative strategies towards strengthening rehabilitation service delivery at primary care to address these complexities where there is an inadequate rehabilitation workforce.

Development of an innovative strategy to determine functioning attributed to health conditions in low-resource settings.

Objectives: Rehabilitation is a health strategy that aims to reduce functioning problems. There is a lack of country-level data on the burden and type of functioning problems to inform service planning and management of patients' rehabilitation needs, particularly at primary care level in low-resource settings. Health researchers need an application that automates synthesis of data extracted from several peer-reviewed publications to determine the most prevalent functioning problems compared across several health states. This article describes the journey leading to the conceptualization and development of the Rehab4all application and compares the application's performance to a standard desktop program. Methods: A descriptive case study approach was used to report on the following steps involved in the development of the web-based Rehab4all application: (i) preliminary literature review to assess the evidence gap of country-level data on functioning problems comparable across several health states; (ii) an initial attempt to perform data extraction and synthesis in Excel; (iii) design and development of Rehab4all; (iv) piloting of the Rehab4all application; and (v) implementation of application with input data from South Africa and Zimbabwe. Results: The Rehab4all application offers a feasible solution for synthesizing data from several peer-reviewed publications to provide information on context-specific, priority functioning problems at country level through the integrated global International Classification of Functioning, Disability and Health Framework (ICF). Conclusion: This bespoke innovation provides impetus for further development, profile comparison and shared information between countries to co-develop strategies which can strengthen rehabilitation service delivery.

Describing the Rehabilitation Workforce Capacity in the Public Sector of Three Rural Provinces in South Africa: A Cross-Sectional Study.

The World Health Organisation emphasises the importance of addressing gaps in health systems where rehabilitation services are poorly integrated. In South Africa, regions with the largest disability rates are usually the areas where rehabilitation is least accessible, due to inadequate workforce capacity. The first step towards addressing workforce capacity is to determine current capacity. This paper presents a cross-sectional study to describe rehabilitation workforce data in the public sector of three rural South African provinces. A web-based therapist survey and a telephonic facility survey was conducted. Data were collected regarding total number of therapists per province, age, years employed, qualifications, salary level, profession type, level of care, and rural/urban distribution. Descriptive statistics were conducted, while Chi-squared tests compared professions regarding highest qualification and salary level. Population-adjusted ratios were calculated using national uninsured population statistics. The web-based survey had 639 responses while the telephonic survey reported on 1166 therapists. Results indicated that the mean age of therapists across the respective provinces was 28, 35 and 31 years of age, and the mean employment years in the respective provinces were three, eight and five years. Most of the workforce (n = 574) had a bachelor's degree as their highest qualification. A total of 27% of the workforce were community service therapists and 61% of therapists earned a production-level salary. Occupational therapy was best (40%) and speech and audiology therapy least (7%) represented. Three percent of therapists worked at primary level, versus eighty percent at secondary level. Forty percent of therapists worked in rural areas. Workforce density per province ranged from 0.71-0.98 per 10,000 population. Overall, results show that the rehabilitation workforce density is low, and that the distribution of therapists between rural and urban settings, and levels of care, is inequitable. Considering the rise in rehabilitation need, prioritisation and strengthening of the rehabilitation workforce capacity is vital to ensure integration across all levels of care and service.

Rehabilitation workforce descriptors: a scoping review.

BACKGROUND: A comprehensive, accurate description of workforce capacity is important for health service planning, to ensure that health services meet local needs. In many low- to middle-income countries, the government's service planning ability is barred by the lack of accurate and/or comprehensively-described workforce data. In these low-resource settings, lack of appropriate planning leads to limited or no access to rehabilitation services. Variability in the definitions and scope of rehabilitation professionals further complicates the understanding of rehabilitation services and how it should be planned and delivered. Another challenge to describing the primary rehabilitation workforce capacity, is the lack of standardised and agreed-upon global metrics. These inconsistencies highlight the need for a comprehensive understanding of current practices, which can offer guidance to countries wishing to describe their rehabilitation workforce. This study aimed to scope the range of descriptors and metrics used to describe the rehabilitation workforce and to compare the workforce across countries that used similar descriptors in published reports. METHODS: A scoping review was conducted according to the five-step framework first developed by Arksey and O'Malley. The review included a broad search of literature regarding the rehabilitation workforce and how countries quantify and describe the rehabilitation workforce. RESULTS: Nineteen studies on rehabilitation workforce capacity were identified. All but one (a cross-sectional study) were database reviews. The main descriptors and indicators used to describe the rehabilitation workforce capacity were profession type, age, gender, distributions between urban/rural, level of care, and private/public sectors, absolute count totals, and population-adjusted ratios. CONCLUSION: This scoping review provided an overview of descriptors and indicators used to describe the rehabilitation workforce capacity internationally. The study is a first step towards developing standardised descriptors and metrics to quantify the rehabilitation workforce capacity, that will allow for comparison between different settings. TRIAL REGISTRATION: This scoping review protocol has been registered with the Open Science Framework (http://osf.10/7h6xz).

Defining and identifying critical elements of, and lessons learned from addressing, 'operational readiness' for public health emergency events, including COVID-19: a scoping review protocol.

INTRODUCTION: Much is known around public health preparedness and response phases. However, between the two phases is operational readiness that comprises the immediate actions needed to respond to a developing risk or hazard. Currently, emergency readiness is embedded in multiple frameworks and policy documents related to the health emergency cycle. However, knowledge about operational readiness' critical readiness components and actions required by countries to respond to public health eminent threat is not well known. Therefore, we aim to define and identify the critical elements of 'operational readiness' for public health emergencies, including COVID-19, and identify lessons learnt from addressing it, to inform the WHO Operational Readiness Framework. METHODS AND ANALYSIS: This is a scoping review following the Joanna Briggs Institute guidance. Reporting will be according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses Extension for Scoping Reviews (PRISMA-ScR) checklist. MEDLINE, Embase and Web of Science databases and grey literature will be searched and exported into an online systematic review software (eg, Rayyan in this case) for review. The review team, which apart from scoping review methodological experts include content experts in health systems and public health and emergency medicine, prepared an a priori study protocol in consultation with WHO representatives. ATLAS.ti V.9 will be used to conduct thematic data analysis as well as store, organise and retrieve data. Data analysis and presentation will be carried out by five reviewers. ETHICS AND DISSEMINATION: This review will reveal new insights, knowledge and lessons learnt that will translate into an operational framework for readiness actions. In consultation with WHO, findings will be disseminated as appropriate (eg, through professional bodies, conferences and research papers). No ethics approvals are required as no humans will be involved in data collection. PROTOCOL REGISTRATION: This rapid scoping review has been registered on Open Science Framework (doi:10.17605/OSF.IO/6SYAH).

Multimorbidity patterns and function among adults in low- and middle-income countries: a scoping review protocol.

BACKGROUND: A fifth of adults in low- and middle-income countries (LMICs) have multimorbid conditions, which are linked to socio-economic deprivation and aging. Multimorbidity is associated with high rates of functional problems and disability, increased healthcare utilization, and lower quality of life. Literature on multimorbidity and associations with function is mostly from high-income countries (HICs) and focused among older adults. Moreover, data regarding disease patterns and their impact on person-centered outcomes are limited. There is a need for research into understanding common patterns of multimorbidity, and their association with functional impairments, particularly in LMICs. Such information may contribute towards evidence-based and context-relevant strategic policy, planning, and delivery models for health and rehabilitation services, which is imperative in attaining Universal Health Coverage (UHC). The planned scoping review aims to provide an overview of the scope and nature of existing literature on multimorbidity patterns and function among adults in LMICs. METHODS: A scoping review will be conducted using a five-step framework and reported according to the PRISMA-ScR guidelines. A comprehensive electronic search of PubMed/MEDLINE, Scopus, EBSCOhost, Scielo, Cochrane and Google Scholar will be conducted and updated from the last pilot search ran in September 2020. Studies of any design will be included if they are reported in English, published (between January 1976 and the last search date) in a peer-reviewed journal, and describe multimorbidity patterns and associations with physical functional impairments, activity limitations or participation restrictions among adults in LMICs. Search results will be independently screened by two reviewers and data extraction will cover study characteristics, participants' characteristics, multimorbidity measures, patterns analysis, and functional measures. Descriptive statistics and narrative synthesis will be used to synthesize and summarize findings. DISCUSSION: Patients with multimorbidity have unique and cross-cutting needs, hence the need for integrated and person-centered approaches to policy, planning, and delivery of medical and rehabilitation services. Considering the shift towards UHC and primary healthcare-led management of chronic diseases, the proposed scoping review is timely. Findings will provide insights into the current extent and scope of multimorbidity research, and guide future inquiry in the field. TRIAL REGISTRATION: Open Science Framework (OSF), https://osf.io/gcy7z/.

Mobility Deviations in Adults With Human Immunodeficiency Virus: A Cross-Sectional Assessment Using Gait Analysis, Functional Performance, and Self-Report.

BACKGROUND: Little is known about how human immunodeficiency virus (HIV) affects walking biomechanics, or about associations between HIV-related gait deviations, functional performance, and self-reported outcomes. This paper reports on (1) gait biomechanics and variability in people with HIV (PWH) and (2) associations with clinical tests, self-reported function, and falls. METHODS: A cross-sectional study tested consecutively sampled PWH (n = 50) and HIV-seronegative participants ([SNP] n = 50). Participants underwent 3-dimensional gait analysis, performed clinical tests (short walk and single leg stance tests with and without dual tasking, chair-rise tests, and a physical performance battery), and completed questionnaires about function and falls. Between-group comparisons were done using analysis of covariance. Linear correlations between gait variability, clinical tests, and patient-reported outcomes were established. RESULTS: People with HIV and SNP had comparable median ages (PWH = 36.6, interquartile range [IQR] = 32.0-45.6]; SNP = 31.1, IQR = 23.2-45.1). Compared with SNP, PWH walked slower (adjusted mean difference [MD] = -0.2 meters per second [m/s], 95% confidence interval [CI] = -0.3 to -0.1) with greater variability (adjusted MD = 14.7 variability score points, 95% CI = 9.9-19.5). Moreover, PWH were slower in five-times sit-to-stand (5STS) performance (adjusted MD = 1.9 seconds, 95% CI = 1.00-2.9). Significant deviations in hip kinematics (increased flexion; adjusted MDs = 2.4°-2.8°, P = .012-.016) and knee kinematics (reduced flexion; adjusted MDs = 2.3°-3.7°, P = .007-.027) were found in PWH during dual-task (DT) walking. The PWH's 5STS moderately correlated with larger gait variability (usual pace r = -0.5; dual task r = -0.6), poorer self-reported mobility (r = 0.4) and self-care function (r = 0.5), and fear of falling (P = .003). CONCLUSIONS: People with HIV presented with biomechanical deviations suggestive of a slowed and variable gait, especially under cognitive challenges. Five-times STS may be useful to screen for gait deviations in PWH.

Health system challenges affecting falls prevention in persons living with HIV: perspectives from physiotherapists in four sub-Saharan regions.

AIM: The aim of this study was to explore the perspectives of physiotherapists in four selected regions of sub-Saharan Africa regarding health system challenges impacting the integration of physiotherapy-led falls prevention services in the primary care of persons living with HIV (PLWH). BACKGROUND: Falls may pose a significant problem among younger PLWH in low- and middle-income countries. Physiotherapists' role in optimising function and quality of life can do much in the prevention of falls in PLWH and reducing the harm that results. However, falls prevention strategies have not been implemented effectively especially in primary health care settings in sub-Saharan Africa. Physiotherapists' account of the health system challenges they encounter may provide insights into potential strategies that may be considered in optimising fall prevention for PLWH in poorly resourced settings. METHODS: A descriptive qualitative study was conducted in selected urban districts in the capital cities of four sub-Saharan African countries. In-depth interviews were conducted with 21 purposively selected physiotherapists involved in the primary care of PLWH. Audio recordings of interviews were transcribed verbatim and analysed using deductive thematic content analysis. FINDINGS: The main results are presented in the theme 'Health care system challenges' and in nine categories informed by the WHO health system framework: lack of policies and clinical practice guidelines, shortage/Inaccessible falls prevention services, inadequate human resource, physiotherapists not adequately equipped in falls prevention, inaccessible/No facilities for BMD measurement, inefficient data capturing systems, lack of evidence regarding falls among PLWH, unclear physiotherapy role descriptions, inefficient referral system. Physiotherapists highlighted the need for more information and research regarding fall prevention for PLWH, promote their role in the primary care of PLWH and adopt a patient-centred approach to fall prevention.

Physiotherapists' awareness of risk of bone demineralisation and falls in people living with HIV: a qualitative study.

BACKGROUND: Recent research has indicated a seemingly increased propensity for both falls and accelerated bone loss in people living with HIV (PLWH). Physiotherapists play a crucial role in optimising function and quality of life of PLWH through prevention of falls and reducing the harm that results. AIM: This study aimed to explore physiotherapists' awareness of falls risk and accelerated bone demineralisation in PLWH and their perceptions of current falls prevention strategies in the care of PLWH in selected regions of sub-Saharan Africa. METHOD: An exploratory descriptive qualitative research method was employed to explore physiotherapists' perceptions and experiences regarding bone health and falls in PLWH. In-depth semi-structured telephonic interviews were used to collect data from 21 physiotherapists working in primary HIV care. Transcribed interview data were coded in Atlas.ti.8® and analysed using inductive thematic analysis. RESULTS: The primary study revealed a lack of awareness by physiotherapists of falls risk and bone demineralisation in PLWH. As such, physiotherapists did not link falls or fractures to HIV or antiretroviral therapy (ART) when they did observe such events during their general patient assessments. However, in retrospect, some physiotherapists were able to recognise risk factors linked to falls in those with HIV. Current services for falls prevention, as perceived by the physiotherapists, were sub-optimal. CONCLUSION: Physiotherapists may need to be more aware of the potential risk of falls and bone demineralisation in PLWH and routinely assess for these phenomena in both older and younger PLWH.

Demographic transformation of the physiotherapy profession in South Africa: A retrospective analysis of HPCSA registrations from 1938 to 2018.

RATIONALE, AIM AND OBJECTIVE: The physiotherapy profession did not escape the effects of racially based segregatory practises. While numerous strategies and initiatives have been employed to redress the inequities of the past, the extent of demographic transformation within the physiotherapy profession in South Africa remains uncertain. Transformation is defined in this article as an intentional change aimed at addressing inequalities and the ultimate goal is for population group and gender profiles of higher education graduates to be representative of the national epidemiological profile. This paper describes the demographic patterns of Health Professions Council of South Africa (HPCSA) registered physiotherapists from 1938 to 2018. METHOD: A retrospective record review of the HPCSA database from 1938 until 2018 was performed. De-identified data were extracted, coded and analyzed for descriptive purposes. Z-tests were used for analysis of proportion differences, along with P-values and 95% confidence intervals for interpretation. RESULTS: In 2018, 7663 physiotherapists (6350 women and 1313 men) were registered with the HPCSA. Most registered physiotherapists (55.6%) were classified as white, followed by black (17.3%), coloured (10.3%) and Indian (9.8%). A progressive increase was found in the number of new registrations over time (1949-2018) by black (0.00%-24.38% of total new registrations), coloured (0.00%-15.47%) and Indian individuals (0.00%-10.03%), with a statistically significant increase in newly registered black therapists in the decade prior to 2018 (P = .005). Gender transformation appears to be occurring at a slower pace as the profession remains female-dominated (82.9% of registered physiotherapists in 2018). CONCLUSION: There has been a steady transformation of the South African physiotherapy graduates composition regarding population categories and gender. However, it is clear that much more than selection criteria is needed to transform the profession in a way that is nationally representative, remain actively accountable for transformation and apt for local context.

Falls in people living with HIV: a scoping review.

OBJECTIVES: Recent research has indicated seemingly increased propensity for falls and accelerated bone demineralisation in people living with HIV (PLWH). We aim to map out the extent and nature of existing research relating to falls in PLWH and describe the relationship between bone demineralisation and falls in PLWH. METHODS: A scoping review was done following Arksey & O'Malley's methodological framework and recommendations from Joanna Briggs Institute. Four databases were searched until October 2019 for peer-reviewed studies available in English reporting on the definition, prevalence, assessment, risk factors and interventions for falls in PLWH as well as information on bone demineralisation linked to falls in PLWH. Narrative reviews were excluded. Two reviewers independently performed the extraction using a predesigned Excel sheet. A descriptive analysis of extracted information was done. RESULTS: Fourteen studies on falls in older PLWH were identified, with all but one study conducted in high-income countries. Prevalence of falls in PLWH ranged from 12% to 41%. Variable assessment tools/tests were used to assess potential risk factors, but it remains to be determined which are more predictive and appropriate for use among PLWH. Considerable agreement existed for risk factors regarding use of medications while evidence regarding functional and cognitive impairments were variable. Few studies compared risk factors for falls in PLWH with those in age-matched and sex-matched seronegative population. There is currently no evidence for interventions to prevent or reduce falls risk in PLWH. CONCLUSION: More research is needed on falls in younger cohorts of PLWH and in sub-Saharan Africa where HIV is most prevalent and more robust clades exist. More studies need to report on data in seronegative controls to determine risk factors unique to PLWH. More intervention studies targeted at falls prevention and promotion of bone health are required. Quality clinical practice guidelines highlighting validated assessment tools and outcome measures need to be developed.

Concurrent validity and within-session reliability of gait kinematics measured using an inertial motion capture system with repeated calibration.

INTRODUCTION: Wearable inertial measurement units (IMUs) enable gait analysis in the clinic, but require calibrations that may affect subsequent gait measurements. This study assessed concurrent validity and within-session reliability of gait kinematics measured by a frequently calibrated IMU-based system. Calibration pose accuracy and intra-rater repeatability, and IMU orientation tracking accuracy, were additionally quantified. METHODS: Calibration poses and gait were recorded in 15 women using IMUs and optical motion capture (OMC) (reference standard) simultaneously. Participants performed six consecutive trials: each comprising a calibration pose and a walk. IMU tracking was assessed separately (once-off) using technical static and dynamic tests. Differences of > 5° constituted clinical significance. RESULTS: Concurrent validity for gait revealed clinically significant between-system differences for sagittal angles (root-mean-square error [RMSE] 6.7°-15.0°; bias -9.3°-3.0°) and hip rotation (RMSE 7.9°; bias -4.2°). After removing modelling offsets, differences for all angles (except hip rotation) were < 5°. Gait curves correlated highly between systems (r > 0.8), except hip rotation, pelvic tilt and -obliquity. Within-session reliability of IMU-measured gait angles was clinically acceptable (standard error of measurement [SEM] < 5°). Calibration poses were repeatable (SEM 0.3°-2.2°). Pose accuracy revealed mean absolute differences (MAD) < 5° for all angles except sagittal ankle, hip and pelvis. IMU tracking accuracy demonstrated RMSE ≤ 2.0°. CONCLUSION: A frequently calibrated IMU system provides reliable gait measurements; comparing highly to OMC after removing modelling differences. Calibration poses can be implemented accurately for most angles and consistently. IMU-measured gait data are clinically useful and comparable within participants, but should not be compared to OMC-measured data.

The effectiveness of combined lower limb strengthening and whole-body vibration, compared to strengthening alone, for improving patient-centred outcomes in adults with COPD: A systematic review.

BACKGROUND: People with chronic obstructive pulmonary disease (COPD) experience various impairments, reducing quality of life (QoL). Rehabilitation that does not elicit dyspnoea, such as strength training, is recommended to improve patient outcomes. OBJECTIVES: To systematically review evidence for the effectiveness of lower limb strengthening combined with whole-body vibration training (WBVT), versus lower limb strengthening alone, in adults with COPD for improving lower limb muscle strength, functional exercise capacity (FEC), pulmonary function and QoL. METHOD: Eight databases were searched (inception-May 2019). Only randomised controlled trials (RCTs) with PEDro scores ≥ 5/10 were included. Heterogeneity rendered meta-analyses inappropriate; thus data were synthesised narratively. RESULTS: Five RCTs (mean PEDro score: 5.8/10) were included. Only one RCT showed a significant difference for leg press peak force (kg) at 12 weeks (p = 0.001), favouring WBVT. FEC improved significantly (p < 0.05) in favour of WBVT at 3 and 12 weeks. Combined training was not more effective for short-term (≤ 12 weeks) improvements in pulmonary function or QoL. CONCLUSION: Level II evidence suggests that combining strengthening with WBVT has significant beneficial short-term effects on FEC in adults with COPD. Results are limited by the small number of studies and small sample sizes. Combined WBVT and strengthening was not more effective than strengthening alone for improving lower limb muscle strength, pulmonary function and QoL. CLINICAL IMPLICATIONS: Combining low (6-10 Hz) to moderate (24-26 Hz) frequency WBVT with strengthening may be a more effective modality to improve FEC than strengthening alone, should resources allow.

Kinematics and temporospatial parameters during gait from inertial motion capture in adults with and without HIV: a validity and reliability study.

BACKGROUND: Inertial measurement unit (IMU)-based motion capture systems are gaining popularity for gait analysis outside laboratories. It is important to determine the performance of such systems in specific patient populations. We aimed to validate and determine within-day reliability of an IMU system for measuring lower limb gait kinematics and temporal-spatial parameters (TSP) in people with and without HIV. METHODS: Gait was recorded in eight adults with HIV (PLHIV) and eight HIV-seronegative participants (SNP), using IMUs and optical motion capture (OMC) simultaneously. Participants performed six gait trials. Fifteen TSP and 28 kinematic angles were extracted. Intraclass correlations (ICC), root-mean-square error (RMSE), mean absolute percentage error and Bland-Altman analyses were used to assess concurrent validity of the IMU system (relative to OMC) separately in PLHIV and SNP. IMU reliability was assessed during within-session retest of trials. ICCs were used to assess relative reliability. Standard error of measurement (SEM) and percentage SEM were used to assess absolute reliability. RESULTS: Between-system TSP differences demonstrated acceptable-to-excellent ICCs (0.71-0.99), except for double support time and temporophasic parameters (< 0.60). All TSP demonstrated good mean absolute percentage errors (≤7.40%). For kinematics, ICCs were acceptable to excellent (0.75-1.00) for all but three range of motion (ROM) and four discrete angles. RMSE and bias were 0.0°-4.7° for all but two ROM and 10 discrete angles. In both groups, TSP reliability was acceptable to excellent for relative (ICC 0.75-0.99) (except for one temporal and two temporophasic parameters) and absolute (%SEM 1.58-15.23) values. Reliability trends of IMU-measured kinematics were similar between groups and demonstrated acceptable-to-excellent relative reliability (ICC 0.76-0.99) and clinically acceptable absolute reliability (SEM 0.7°-4.4°) for all but two and three discrete angles, respectively. Both systems demonstrated similar magnitude and directional trends for differences when comparing the gait of PLHIV with that of SNP. CONCLUSIONS: IMU-based gait analysis is valid and reliable when applied in PLHIV; demonstrating a sufficiently low precision error to be used for clinical interpretation (< 5° for most kinematics; < 20% for TSP). IMU-based gait analysis is sensitive to subtle gait deviations that may occur in PLHIV.

Fall History and Associated Factors Among Adults Living With HIV-1 in the Cape Winelands, South Africa: An Exploratory Investigation.

BACKGROUND: People with HIV-1 (PWH) exhibit a high fall incidence and increased fracture risk. As little is known about fall frequency and associated factors in PWH residing in lower-middle-income countries (LMIC), we investigated fall frequency, bone quality, and factors associated with fall history in a South African cohort. METHODS: Fifty PWH without obvious predisposing factors for mobility impairments attending 2 public primary care clinics in the Western Cape region participated. Demographic, clinical, and physical performance data were collected. Falls were assessed retrospectively over 12 months. Mobility and balance were evaluated using a physical performance battery. Bone mineral density was screened using quantitative ultrasound (QUS). Associations between variables and falls grouping were analyzed using chi-square tests, t tests, and Mann-Whitney U tests, and effect sizes (ES) were calculated. RESULTS: Thirty-four percent of PWH (median age, 36.6 years) reported falling during the past year, and 41.2% of fallers reported multiple falls. Fallers had more mobility problems (P = .013), higher fear of falling (P = .007), higher fracture history (P = .003), worse balance performance (P < .001), higher proportions of detectable viral loads (P = .021), and poorer bone quality (P = .040). Differences were of medium to large ES. CONCLUSIONS: This exploratory study is the first to show that relatively young South African PWH without obvious predisposing factors for gait and balance impairments experience falls. The observed fall-associated factors warrant further research using larger samples and longitudinal designs to ascertain fall predictors within this population.

Objective impairments of gait and balance in adults living with HIV-1 infection: a systematic review and meta-analysis of observational studies.

BACKGROUND: Gait and balance deficits are reported in adults with HIV infection and are associated with reduced quality of life. Current research suggests an increased fall-incidence in this population, with fall rates among middle-aged adults with HIV approximating that in seronegative elderly populations. Gait and postural balance rely on a complex interaction of the motor system, sensory control, and cognitive function. However, due to disease progression and complications related to ongoing inflammation, these systems may be compromised in people with HIV. Consequently, locomotor impairments may result that can contribute to higher-than-expected fall rates. The aim of this review was to synthesize the evidence regarding objective gait and balance impairments in adults with HIV, and to emphasize those which could contribute to increased fall risk. METHODS: This review followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. An electronic search of published observational studies was conducted in March 2016. Methodological quality was assessed using the NIH Quality Assessment Tool for Observational Cohort and Cross-Sectional Studies. Narrative synthesis of gait and balance outcomes was performed, and meta-analyses where possible. RESULTS: Seventeen studies were included, with fair to low methodological quality. All studies used clinical tests for gait-assessment. Gait outcomes assessed were speed, initiation-time and cadence. No studies assessed kinetics or kinematics. Balance was assessed using both instrumented and clinical tests. Outcomes were mainly related to center of pressure, postural reflex latencies, and timed clinical tests. There is some agreement that adults with HIV walk slower and have increased center of pressure excursions and -long loop postural reflex latencies, particularly under challenging conditions. CONCLUSIONS: Gait and balance impairments exist in people with HIV, resembling fall-associated parameters in the elderly. Impairments are more pronounced during challenging conditions, might be associated with disease severity, are not influenced by antiretroviral therapy, and might not be associated with peripheral neuropathy. Results should be interpreted cautiously due to overall poor methodological quality and heterogeneity. Locomotor impairments in adults with HIV are currently insufficiently quantified. Future research involving more methodological uniformity is warranted to better understand such impairments and to inform clinical decision-making, including fall-prevention strategies, in this population.