Effectiveness and cost-effectiveness of an individualised, progressive walking and education intervention for the prevention of low back pain recurrence in Australia (WalkBack): a randomised controlled trial.

BACKGROUND: Recurrence of low back pain is common and a substantial contributor to the disease and economic burden of low back pain. Exercise is recommended to prevent recurrence, but the effectiveness and cost-effectiveness of an accessible and low-cost intervention, such as walking, is yet to be established. We aimed to investigate the clinical effectiveness and cost-effectiveness of an individualised, progressive walking and education intervention to prevent the recurrence of low back pain. METHODS: WalkBack was a two-armed, randomised controlled trial, which recruited adults (aged 18 years or older) from across Australia who had recently recovered from an episode of non-specific low back pain that was not attributed to a specific diagnosis, and which lasted for at least 24 h. Participants were randomly assigned to an individualised, progressive walking and education intervention facilitated by six sessions with a physiotherapist across 6 months or to a no treatment control group (1:1). The randomisation schedule comprised randomly permuted blocks of 4, 6, and 8 and was stratified by history of more than two previous episodes of low back pain and referral method. Physiotherapists and participants were not masked to allocation. Participants were followed for a minimum of 12 months and a maximum of 36 months, depending on the date of enrolment. The primary outcome was days to the first recurrence of an activity-limiting episode of low back pain, collected in the intention-to-treat population via monthly self-report. Cost-effectiveness was evaluated from the societal perspective and expressed as incremental cost per quality-adjusted life-year (QALY) gained. The trial was prospectively registered (ACTRN12619001134112). FINDINGS: Between Sept 23, 2019, and June 10, 2022, 3206 potential participants were screened for eligibility, 2505 (78%) were excluded, and 701 were randomly assigned (351 to the intervention group and 350 to the no treatment control group). Most participants were female (565 [81%] of 701) and the mean age of participants was 54 years (SD 12). The intervention was effective in preventing an episode of activity-limiting low back pain (hazard ratio 0·72 [95% CI 0·60-0·85], p=0·0002). The median days to a recurrence was 208 days (95% CI 149-295) in the intervention group and 112 days (89-140) in the control group. The incremental cost per QALY gained was AU$7802, giving a 94% probability that the intervention was cost-effective at a willingness-to-pay threshold of $28 000. Although the total number of participants experiencing at least one adverse event over 12 months was similar between the intervention and control groups (183 [52%] of 351 and 190 [54%] of 350, respectively, p=0·60), there was a greater number of adverse events related to the lower extremities in the intervention group than in the control group (100 in the intervention group and 54 in the control group). INTERPRETATION: An individualised, progressive walking and education intervention significantly reduced low back pain recurrence. This accessible, scalable, and safe intervention could affect how low back pain is managed. FUNDING: National Health and Medical Research Council, Australia.

Health professionals' involvement in volunteering their professional skills: a scoping review.

Background: Volunteering positively affects overall health of both volunteers and recipients through social interaction, support and physical activity. Health professionals' volunteering has considerable potential to improve health outcomes in communities. Objectives: This study aimed to summarize published scientific literature regarding volunteering by health professionals. Method: Medine, Embase, Scopus, PsycINFO and CINAHLdatabases were searched to identify eligible studies published between 2010 and 2023. Data on study methods and findings were extracted and synthesized. Results: Of the 144 eligible studies, 80 (56%) used quantitative methods, 46 (32%) used qualitative, 18 (12%) used mixed methods and 8 (6%) were interventional. Doctors (74 studies, 51%) and nurses (n = 40, 28%) were the professions with most reports of volunteering. Half the studies were from USA (n = 77, 53%), followed by UK (n = 19, 13%), Canada (n = 12, 8%), and Australia/New Zealand (n = 11, 8%). International volunteering in low-to-middle-income countries was reported in 64 studies (44%). Providing service and training were the dominant types of activities (n = 90, 62.5%), with health promotion reported in only 4 studies (3%). Studies reported positive impact from volunteering, both professionally and personally. Time and family commitments were the main barriers. Enablers, barriers and impact were summarized in a socio-ecological map. Conclusion: Health professionals volunteer in diverse activities and report multifaceted benefits. Studies of volunteering interventions could enable new, sustainable approaches to health promotion.

Health coaching improves physical activity, disability and pain in adults with chronic non-cancer pain: a systematic review.

QUESTION: What is the effect of health coaching on physical activity, disability, pain and quality of life compared with a non-active control in adults with chronic non-cancer pain? DESIGN: Systematic review and meta-analysis of randomised controlled trials. Evidence was synthesised as standardised mean differences with 95% confidence intervals using random-effects models. Risk of bias was assessed using the revised Cochrane risk of bias tool. Grading of Recommendations Assessment, Development, and Evaluation (GRADE) was used to determine evidence certainty. DATA SOURCES: MEDLINE, Embase, CENTRAL, CINAHL, Scopus and PEDro were searched from inception to November 2023. PARTICIPANTS: Adults with chronic non-cancer pain. INTERVENTION: Health coaching to increase physical activity. OUTCOME MEASURES: Measures of physical activity, disability, pain and quality of life. RESULTS: Twenty-six randomised trials (n = 4,403) were included. Trials had moderate to high risk of bias. Health coaching had a trivial to small effect on improving physical activity compared with control (15 trials; SMD 0.21, 95% CI 0.07 to 0.35; low certainty evidence). Health coaching had a small effect on improving disability (19 trials; SMD 0.25, 95% CI 0.17 to 0.32; moderate certainty evidence) and pain (19 trials; SMD 0.31, 95% CI 0.18 to 0.43; very low certainty evidence) compared with control. The effect of health coaching on quality of life was unclear due to significant imprecision in the effect estimate (five trials; SMD 0.19, 95% CI -0.14 to 0.53; moderate certainty evidence). CONCLUSION: Health coaching promotes a trivial to small improvement in physical activity and small improvements in disability and pain in adults with chronic non-cancer pain. The effect of health coaching on quality of life remains unclear. REGISTRATION: PROSPERO CRD42020182740.

Cultural, Linguistic, and Geographical Diversity of Participants in Australian Physical Activity Research Studies: A Systematic Review.

BACKGROUND: The Australian population is highly diverse in terms of cultural heritage, languages spoken, and geographical dispersion. Health outcomes are often worse among these culturally, linguistically, and geographically diverse populations, and this is reflected in rates of physical activity participation, with people from these groups often engaging in insufficient physical activity for health benefits. This research aimed to investigate if physical activity intervention studies conducted in Australia were (1) designed to recruit culturally, linguistically, and geographically diverse participants and (2) recruiting culturally, linguistically, and geographically diverse participants. METHODS: We conducted a systematic review of physical activity intervention studies conducted in adults in Australia between 2015 and November 2022. Information relevant to inclusivity in study recruitment methods and diversity of recruited participants was extracted. RESULTS: We identified and extracted data from 371 studies, of which 98 were protocol papers for which no follow-up data was available. Only 26 studies (7%) included methods to recruit culturally or linguistically diverse participants. Most studies (189, 51%) recruited participants from major city locations, with few studies recruiting from more remote locations. No studies included recruitment from very remote regions. Information on cultural, linguistic, or geographic diversity of participants recruited to physical activity studies was provided by 109 studies (40% of studies including results) with the majority recruiting White, English-speakers from major cities. CONCLUSIONS: Few Australian physical activity studies are designed to recruit culturally, linguistically, and geographically diverse participants. Due to limited reporting of the diversity of participants, comparisons with population-representative data are unreliable.

Use of behavior change techniques in physical activity programs and services for older adults: findings from a rapid review.

BACKGROUND: Understanding behavior change techniques (BCTs) used in randomized controlled trials (RCTs) of physical activity programs/services for older adults can help us to guide their implementation in real-world settings. PURPOSE: This study aims to: (a) identify the number and type of BCTs used in physical activity programs/services for older adults evaluated in large, good quality RCTs and (b) explore the impact of different BCTs on different outcome domains. METHODS: This is a secondary data analysis of a WHO-commissioned rapid review of physical activity programs/services for older adults. Fifty-six trials testing 70 interventions were coded for the type and number of BCTs present using a published BCT taxonomy. The proportion of positive effects found from physical activity interventions using the most common BCTs was calculated for the outcomes of physical activity, intrinsic capacity, functional ability, social domain, cognitive and emotional functioning, and well-being and quality of life. RESULTS: Thirty-nine of the 93 possible BCTs were identified in the included trials and 529 BCTs in total (mean 7.6, range 2-17). The most common BCTs were "action planning" (68/70 interventions), "instructions on how to perform a behavior" (60/70), "graded tasks" (53/70), "demonstration of behavior" (44/70), and "behavioral practice/rehearsal" (43/70). Interventions that used any of the most common BCTs showed overwhelmingly positive impacts on physical activity and social domain outcomes. CONCLUSION: Consideration of which BCTs are included in interventions and their impact on outcomes can improve the effectiveness and implementation of future interventions. To enable this, providers can design, implement, and evaluate interventions using a BCT taxonomy.

Interventions aimed at modifying health-related behaviors, such as physical activity, are often complex, with numerous components. To better understand interventions' "active ingredients," we conducted a secondary analysis of a World Health Organization (WHO)-commissioned rapid review, using a behavior change technique (BCT) taxonomy. We aimed to classify the number and types of BCTs in physical activity programs for older adults, as identified in randomized controlled trials (RCTs), and examine their impact on outcomes, including physical activity, intrinsic capacity, functional ability, social domain, cognitive and emotional functioning, and well-being. Examining 56 trials testing 70 interventions, we identified 39 out of 93 possible BCTs, totaling 529 instances across interventions. Common BCTs included "action planning," "instructions on how to perform a behavior," "graded tasks," "demonstration of behavior," and "behavioral practice/rehearsal." Interventions using the 10 most common BCTs demonstrated overwhelmingly positive impacts on physical activity and social domain outcomes. However, these BCTs were not consistently present in interventions yielding positive outcomes in other domains, with greater variation in effects. Our study highlights the significance of identifying both BCTs and desired outcomes when designing physical activity interventions. We advocate for the use of a taxonomy in designing and implementing future programs to maximize effectiveness.

Leisure-Time Physical Activity and Falls With and Without Injuries Among Older Adult Women.

Importance: Falls and fall-related injuries are common among older adults. Older adults are recommended to undertake 150 to 300 minutes of physical activity per week for health benefits; however, the association between meeting the recommended level of physical activity and falls is unclear. Objectives: To examine whether associations exist between leisure-time physical activity and noninjurious and injurious falls in older women. Design, Setting, and Participants: This population-based cohort study used a retrospective analysis of the Australian Longitudinal Study on Women's Health (ALSWH). ALSWH participants born from 1946 to 1951 who completed follow-up questionnaires in 2016 (aged 65-70 years) and 2019 (aged 68-73 years) were included. Statistical analysis was performed from September 2022 to February 2023. Exposure: Self-reported weekly amounts (0, 1 to <150, 150 to <300, ≥300 minutes) and types of leisure-time physical activity, including brisk walking and moderate- and vigorous-intensity physical activity, in the 2016 survey. Main outcome and measures: Noninjurious and injurious falls in the previous 12 months reported in the 2019 survey. Associations between leisure-time physical activity and falls were quantified using directed acyclic graph-informed multinomial logistic regression and presented in odds ratios (ORs) and 95% CIs. Results: This study included 7139 women (mean [SD] age, 67.7 [1.5] years). Participation in leisure-time physical activity at or above the level recommended by the World Health Organization (150 to <300 min/wk) was associated with reduced odds of noninjurious falls (150 to <300 min/wk: OR, 0.74 [95% CI, 0.59-0.92]; ≥300 min/wk: OR, 0.66 [95% CI, 0.54-0.80]) and injurious falls (150 to <300 min/wk: OR, 0.70 [95% CI, 0.56-0.88]; ≥300 min/wk: OR, 0.77 [95% CI, 0.63-0.93]). Compared with women who reported no leisure-time physical activity, those who reported brisk walking (OR, 0.83 [95% CI, 0.70-0.97]), moderate leisure-time physical activity (OR, 0.81 [95% CI, 0.70-0.93]), or moderate-vigorous leisure-time physical activity (OR, 0.84 [95% CI, 0.70-0.99]) had reduced odds of noninjurious falls. No statistically significant associations were found between the types of leisure-time physical activity and injurious falls. Conclusions and Relevance: Participation in leisure-time physical activity at the recommended level or above was associated with lower odds of both noninjurious and injurious falls. Brisk walking and both moderate and moderate-vigorous leisure-time physical activity were associated with lower odds of noninjurious falls.

Effect of a coaching intervention to enhance physical activity and prevent falls in community-dwelling people aged 60+ years: a cluster randomised controlled trial.

OBJECTIVES: To evaluate the effect of a coaching intervention compared with control on physical activity and falls rate at 12 months in community-dwelling people aged 60+ years. DESIGN: Cluster randomised controlled trial. SETTING: Community-dwelling older people. PARTICIPANTS: 72 clusters (605 participants): 37 clusters (290 participants) randomised to the intervention and 35 (315 participants) to control. INTERVENTION: Intervention group received written information, fall risk assessment and prevention advice by a physiotherapist, activity tracker and telephone-based coaching from a physiotherapist focused on safe physical activity. Control group received written information and telephone-based dietary coaching. Both groups received up to 19 sessions of telephone coaching over 12 months. OUTCOMES: The co-primary outcomes were device-measured physical activity expressed in counts per minute at 12 months and falls rate over 12 months. Secondary outcomes included the proportion of fallers, device-measured daily steps and moderate-to-vigorous physical activity (MVPA), self-reported hours per week of physical activity, body mass index, eating habits, goal attainment, mobility-related confidence, quality of life, fear of falling, risk-taking behaviour, mood, well-being and disability. RESULTS: The mean age of participants was 74 (SD 8) years, and 70% (n=425) were women. There was no significant effect of the intervention on device-measured physical activity counts per minute (mean difference 5 counts/min/day, 95% CI -21 to 31), or falls at 12 months (0.71 falls/person/year in intervention group and 0.87 falls/person/year in control group; incidence rate ratio 0.86, 95% CI 0.65 to 1.14). The intervention had a positive significant effect on device-measured daily steps and MVPA, and self-reported hours per week of walking, well-being, quality of life, and disability. No significant between-group differences were identified in other secondary outcomes. CONCLUSION: A physical activity and fall prevention programme including fall risk assessment and prevention advice, plus telephone-based health coaching, did not lead to significant differences in physical activity counts per minute or falls rate at 12 months. However, this programme improved other physical activity measures (ie, daily steps, MVPA, hours per week of walking), overall well-being, quality of life and disability. TRIAL REGISTRATION NUMBER: ACTRN12615001190594.

Responsiveness of Patient-Reported and Device-Based Physical Activity Measures: Secondary Analysis of Four Randomized Trials.

PURPOSE: This study aimed to compare the responsiveness of patient-reported and device-based instruments within four physical activity trials. METHODS: This was a secondary analysis of four randomized trials that used both a patient-reported outcome measure (the Incidental and Planned Exercise Questionnaire (IPEQ)) and a device-based instrument (ActiGraph or ActivPAL) to measure physical activity. The four trials included were (i) Activity and MObility UsiNg Technology (AMOUNT), digitally enabled exercises in those undertaking aged care and neurological rehabilitation; (ii) Balance Exercise Strength Training at Home, home-based balance and strength exercises in community-dwelling people 65 yr or older; (iii) Coaching for Healthy Ageing (CHAnGE), physical activity coaching and fall prevention intervention in community-dwelling people 60 yr or older; and (iv) Fitbit trial, fall prevention and physical activity promotion with health coaching and activity monitor in community-dwelling people 60 yr or older. We estimated treatment effects for all variables within each physical activity instrument using regression analyses and expressed results as effect sizes (ES). RESULTS: Overall, device-based instruments were more responsive among healthy older adults (ES range, 0.01 to 0.32), whereas the IPEQ was more responsive among adults requiring rehabilitation (ES range, -0.06 to 0.35). Both the IPEQ and device-based instruments were more responsive in trials that promoted walking via coaching participants to increase their daily steps (AMOUNT (ES range, -0.06 to 0.35), CHAnGE (ES range, -0.24 to 0.22), and Fitbit trial (ES range, -0.23 to 0.32)). Individual variables within the IPEQ and device-based instruments varied in their responsiveness (ES range, -0.13 to 0.20). CONCLUSIONS: Both the IPEQ and device-based instruments are able to detect small changes in physical activity levels. However, responsiveness varies across different interventions and populations. Our findings provide guidance for researchers and clinicians in selecting an appropriate instrument to measure changes in physical activity.

'My words become my hands': Yoga instructors' experiences of adapting teleyoga in the SAGE fall prevention trial-A qualitative analysis.

Objective: This research identifies practical lessons regarding the delivery of teleyoga. Our objectives are to (1) describe challenges and opportunities experienced by yoga instructors when moving the Successful AGEing (SAGE) yoga programme online, and (2) describe how yoga instructors adapted to manage the challenges and leverage opportunities presented by teleyoga. Methods: This study is a secondary analysis of the data from a previous realist process evaluation of the SAGE yoga trial. The SAGE yoga trial is testing the effect of a yoga-based exercise programme on falls among 700 community-dwelling people aged 60+ years. We draw on focus groups and interviews with four SAGE yoga instructors which we analysed using previously developed programme theories combined with inductive coding and an analytical workshop. Results: The concerns of the yoga instructors about teleyoga can be characterised into four broad issues: threats to safety, altered interpersonal dynamics, facilitating mind-body connection and difficulties with technology. The SAGE instructors identified eight modifications they used to manage these challenges: a 1:1 participant interview prior to programme commencement, more descriptive verbal instructions, increased focus on interoception, increased attention and support, slower more structured class flow, simplifying poses, adapting the studio environment and IT support. Conclusions: We have created a typology of strategies for addressing challenges in the delivery of teleyoga for older people. As well as maximising engagement with teleyoga, these manageable strategies could be applied by other instructors to a wide range of telehealth classes, improving the uptake and adherence of beneficial online programmes and services.

Physical activity and injurious falls in older Australian women: adjusted associations and modification by physical function limitation and frailty in the Australian Longitudinal Study on Women's Health.

OBJECTIVES: To investigate associations between leisure-time physical activity (LPA) and injurious falls in older women and explore modification of associations by physical function and frailty. METHODS: Women born during 1946-51 from the Australian Longitudinal Study on Women's Health, injurious falls (self-reported fall with injury and/or medical attention) and self-reported weekly LPA (duration and type). We undertook cross-sectional and prospective analyses using data from 2016 [n = 8,171, mean (SD) age 68 (1)] and 2019 surveys (n = 7,057). Associations were quantified using directed acyclic graph-informed logistic regression and effect modification examined using product terms. RESULTS: Participation in LPA as recommended by World Health Organization (150-300 min/week) was associated with lower odds of injurious falls in cross-sectional (adjusted Odds Ratio (OR) 0.74, 95% CI 0.61-0.90) and prospective analyses (OR 0.75, 95% CI 0.60-0.94). Compared with those who reported no LPA, cross-sectionally, odds of injurious falls were lower in those who reported brisk walking (OR 0.77, 95% CI 0.67-0.89) and vigorous LPA (OR 0.86, 95% CI 0.75-1.00). No significant association was found between different types of LPA and injurious falls prospectively. Only cross-sectionally, physical function limitation and frailty modified the association between LPA and injurious falls, with tendencies for more injurious falls with more activity in those with physical limitation or frailty, and fewer injurious falls with more activity among those without physical function limitation or frailty. CONCLUSION: Participation in recommended levels of LPA was associated with lower odds of injurious falls. Caution is required when promoting general physical activity among people with physical limitation or frailty.

Physiotherapists should apply health coaching techniques and incorporate accountability to foster adherence to a walking program for low back pain: a qualitative study.

QUESTIONS: What motivates individuals to start a walking program for the prevention of low back pain? What strategies optimise short-term and long-term adherence to a walking program? What strategies can physiotherapists incorporate into clinical practice to facilitate commencement of and adherence to a walking program? DESIGN: Qualitative study. PARTICIPANTS: Twenty-two adults recently recovered from an episode of non-specific low back pain who participated in a 6-month, progressive and individualised walking program that was prescribed by a physiotherapist trained in health coaching. METHODS: Semi-structured focus groups conducted online following completion of the walking program. Interview questions explored: primary motivations for starting a walking program, identification of which elements were useful in optimising adherence to the program, and identification of the barriers to and facilitators of engagement with the program. Audio recordings were transcribed and thematic analysis was conducted. RESULTS: Three major themes were identified. Theme one identified that strong motivators to start a walking program were anticipated improvements in low back pain management and the added general health benefits of a more active lifestyle. Theme two identified that fear of high-impact exercises led to avoidance; however, walking was considered a safe exercise option. Theme three identified accountability, enjoyment of exercise and health benefits were critical to adherence. CONCLUSION: Participants recently recovered from low back pain reflected positively on a physiotherapist-prescribed walking program. Participants described what elements of the program were crucial to starting exercise and optimising adherence. These findings have informed a list of practical recommendations for physiotherapists to improve patient commencement and adherence to exercise.

Exercise for fall prevention in community-dwelling people aged 60+: more effective in trials with higher fall rates in control groups.

BACKGROUND AND OBJECTIVES: Exercise is beneficial for fall prevention. Targeting interventions to people who fall more may lead to greater population impacts. As trials have used varying methods to assess participant risk level, prospectively-measured control group fall rates may provide a more accurate and poolable way to understand intervention effects in different subpopulations. We aimed to explore differences in effectiveness of fall prevention exercise according to prospectively-measured fall rate. METHODS: Secondary analysis of a Cochrane review investigating exercise for fall prevention in peopled aged ≥60 years. Meta-analysis assessed the impact of exercise on fall rate. Studies were dichotomized according to the median control group fall rate (0.87, IQR 0.54-1.37 falls/person-year). Meta-regression explored the effects on falls in trials with higher and lower control group fall rates. RESULTS: Exercise reduced the rate of falls in trials with higher (rate ratio 0.68, 95% CI 0.61-0.76, 31 studies) and lower control group fall rates (rate ratio 0.88, 95% CI 0.79-0.97, 31 studies, P = 0.006 for difference in effects). CONCLUSION: Exercise prevents falls, moreso in trials with higher control group fall rates. As past falls strongly predict future falls, targeting interventions to those with more past falls may be more efficient than other falls risk screening methods.

Physical Activity Interventions for Adults Aged 60+ Years in Low- and Middle-Income Countries: A Scoping Review.

BACKGROUND: Most reviews investigating physical activity interventions for older people consider evidence primarily from high-income countries. This review examined physical activity interventions for older people from low- and middle-income countries. METHODS: We searched 9 electronic databases to identify randomized controlled trials or quasi-randomized trials studies investigating physical activity interventions for people aged 60+ in low- and middle-income countries. Following study selection, one reviewer extracted relevant data. A second reviewer double-checked the data extraction of a randomly selected sample of interventions (20%). Data were summarized using descriptive statistics. RESULTS: We included 234 studies from 19 countries, investigating 259 distinct physical activity interventions. Studies were mostly conducted in upper middle-income countries (89%), often assessing physical activity interventions through randomized controlled trials (82%). Most studies investigated a mixed population in terms of sex (68%), with a mean age between 65 and 70 years (36%), not selected on the basis of having a specific health condition (55%). The intervention most commonly investigated was structured exercise (63%) and "no intervention" was the most frequent comparator (47%). The outcomes measured more often were intrinsic capacity (59%) and functional ability (51%), whereas physical activity, falls, and social outcomes were rare. Only 2 studies targeted underserved populations. CONCLUSION: Although we identified a substantial number of randomized controlled trials, most evidence for physical activity interventions for older people in low- and middle-income countries is limited to upper middle-income countries. Gaps identified included interventions targeting populations with underserved backgrounds, using sport as an intervention, and assessing the impact of physical activity interventions on physical activity, falls, and social outcomes.

Cost-effectiveness of physical activity programs and services for older adults: a scoping review.

BACKGROUND: Evidence supporting physical activity for older adults is strongly positive. Implementation and scale-up of these interventions need to consider the value for money. This scoping review aimed to assess the volume of (i) systematic review evidence regarding economic evaluations of physical activity interventions, and (ii) of cost utility analysis (CUA) studies (trial- or model-based) of physical activity interventions for older people. METHODS: We searched five databases (January 2010 to February 2022) for systematic reviews of economic evaluations, and two databases (1976 to February 2022) for CUA studies of physical activity interventions for any population of people aged 60+ years. RESULTS: We found 12 potential reviews, two of which were eligible for inclusion. The remaining 10 reviews included eligible individual studies that were included in this review. All individual studies from the 12 reviews (n = 37) investigated the cost-effectiveness of structured exercise and most showed the intervention was more costly but more effective than no intervention. We identified 27 CUA studies: two investigated a physical activity promotion program and the remainder investigated structured exercise. Most interventions (86%) were more costly but more effective, and the remaining were cost-saving compared to no intervention. CONCLUSIONS: There is a scarcity of reviews investigating the value for money of physical activity interventions for older adults. Most studies investigated structured exercise. Physical activity interventions were generally more effective than no intervention but more costly. As such an intervention could be cost-effective and therefore worthy of wider implementation, but there is a need for more frequent economic evaluation in this field.

Effectiveness and cost-effectiveness of a progressive, individualised walking and education program for prevention of low back pain recurrence in adults: statistical analysis plan for the WalkBack randomised controlled trial.

BACKGROUND: Exercise for the prevention of low back pain recurrences is recommended, but under-researched. The effectiveness and cost-effectiveness of a walking program for preventing low back pain recurrence remains unknown. This a priori statistical analysis plan describes the methods of analysis for the WalkBack trial. METHODS: WalkBack is a prospectively registered, pragmatic, randomised controlled trial. The aim is to investigate the effectiveness and cost-effectiveness of a 6-month progressive and individualised walking and education program (intervention) for the prevention of low back pain recurrences, compared to a no-treatment control group. The primary outcome is days to the first recurrence of an episode of activity-limiting low back pain. Key secondary outcomes include days to any recurrence of low back pain, days to a care-seeking recurrence of low back pain, disability level, health-related quality of life, costs associated with low back pain and adverse events. All participants will be followed for a minimum of 12 months. Analysis will follow the intention-to-treat principle. Cox regression is planned to assess the effects for the outcomes of time to activity-limiting, minimal and care-seeking recurrence. Hazard ratios and median survival times with 95% confidence intervals will be calculated. The effect of the intervention on continuous outcomes will be estimated with repeated-measure linear mixed models. An economic evaluation will be performed from the societal perspective for recurrence prevented (yes/no) and quality-adjusted life years. The proportion of adverse events between groups will be compared using Fisher's exact test. DISCUSSION: The WalkBack trial will provide evidence on the effectiveness and cost-effectiveness of a walking intervention to prevent low back pain recurrences. This statistical analysis plan provides transparency on the analysis of the trial. TRIAL REGISTRATION: WalkBack - Effectiveness and cost-effectiveness of a progressive individualised walking and education program for the prevention of a recurrence of low back pain. ACTRN12619001134112 . Date Registered: 14/08/2019.

The effect of physical activity on health outcomes in people with moderate-to-severe traumatic brain injury: a rapid systematic review with meta-analysis.

BACKGROUND: In 2020, the World Health Organization (WHO) released the first global physical activity and sedentary behaviour guidelines for children and adults living with disability. The evidence informing the guidelines though is not specific to people living with traumatic brain injury (TBI), but rather comes from other disabling conditions such as Parkinson's disease, and stroke. There remains a clear lack of direct evidence of the effects of physical activity for people living with TBI. The objective of this rapid review was to identify direct evidence of the effect of physical activity on health outcomes in people with moderate-to-severe TBI to inform adaptation of the WHO physical activity guidelines into clinical practice guidelines. METHODS: We conducted a rapid systematic review with meta-analysis of randomised controlled trials, including people of any age with moderate-to-severe TBI, investigating physical activity interventions compared to either usual care, a physical activity intervention with different parameters, or a non-physical activity intervention. Four databases (CENTRAL, SPORTDiscus, PEDro, Ovid MEDLINE) were searched from inception to October 8, 2021. The primary outcomes were physical function, cognition, and quality of life. RESULTS: Twenty-three studies were included incorporating 812 participants (36% females, majority working-age adults, time post-TBI in studies ranged from 56 days (median) to 16.6 years (mean)). A range of physical activity interventions were evaluated in rehabilitation (n = 12 studies), community (n = 8) and home (n = 3) settings. We pooled data from the end of the intervention for eight outcomes. Participation in a virtual reality physical activity intervention improved mobility, assessed by the Community Balance and Mobility Scale (range 0 to 96; higher score indicates better mobility) more than standard balance training (two studies, 80 participants, Mean Difference = 2.78, 95% CI 1.40 to 4.16; low certainty evidence). There was uncertainty of effect for the remaining outcomes, limited by small sample sizes, diverse comparators and a wide range of outcome measures. CONCLUSION: This review consolidates the current evidence base for the prescription of physical activity for people with moderate-to-severe TBI. There remains a pressing need for further rigorous research in order to develop practice guidelines to support clinical decision-making when prescribing physical activity in this population.

Exploring Older Adults' Experiences of a Home-Based, Technology-Driven Balance Training Exercise Program Designed to Reduce Fall Risk: A Qualitative Research Study Within a Randomized Controlled Trial.

BACKGROUND AND PURPOSE: With an aging population, falls have become an increasing public health concern. While face-to-face exercise programs have demonstrated efficacy in reducing falls, their effectiveness is hampered by low participation and adherence. Digital technologies are a novel and potentially effective method for delivering tailored fall prevention exercise programs to older adults. In addition, they may increase the reach, uptake, and sustainability of fall prevention programs. Therefore, understanding older adults' experiences of using technology-driven methods is essential. This study explored the user experience of StandingTall , a home-based fall prevention program delivered through a tablet computer. METHODS: Fifty participants were recruited using purposive sampling, from a larger randomized controlled trial. Participants were selected to ensure maximum variability with respect to age, gender, experience with technology, and adherence to the program. Participants undertook a one-on-one structured interview. We followed an iterative approach to develop themes. RESULTS AND DISCUSSION: Eight themes were identified. These fall under 2 categories: user experience and program design. Participants found StandingTall enjoyable, and while its flexible delivery facilitated exercise, some participants found the technology challenging. Some participants expressed frustration with technological literacy, but most demonstrated an ability to overcome these challenges, and learn a new skill. Older adults who engaged in a technology-driven fall prevention program found it enjoyable, with the flexibility provided by the online delivery central to this experience. While the overall experience was positive, participants expressed mixed feelings about key design features. The embedded behavior change strategies were not considered motivating by most participants. Furthermore, some older adults associated the illustrated characters with gender-based stereotypes and negative views of aging, which can impact on motivation and preventive behavior. CONCLUSION: This study found digital technologies are an effective and enjoyable method for delivering a fall prevention program. This study highlights that older adults are interested in learning how to engage successfully with novel technologies.