Comparison of patient-reported outcomes of physical activity and accelerometry in people with multiple sclerosis and ambulatory impairment: A cross-sectional study

BACKGROUND

Accelerometers and patient-reported outcomes (PRO) are used to assess physical activity (PA) in people with multiple sclerosis (pwMS). So far it is unknown, however, whether these assessments represent mobility limitations in pwMS with mild and moderate to severe disability alike. The primary aim of the study was to assess the correlation between accelerometry and International Physical Activity Questionnaire (IPAQ) scores in pwMS with different degrees of ambulatory impairment. Taken its frequent use into account, the Godin Leisure Time Exercise Questionnaire (GLTEQ) was investigated as additional PRO.

METHODS

In a prospective cohort of pwMS, correlational analyses were performed between the number of daily steps, time spent in light, moderate to vigorous PA (MVPA) and time spent sitting as assessed using accelerometry (ActiGraph®-GT3X), and the respective IPAQ and GLTEQ scores. Additionally, associations of PA with disease-specific characteristics, aerobic capacity (VO2peak), walking assessments (Timed 25-Foot Walk, T25FW; 2-Minute Walk Test, 2MWT) and walking perception (Multiple Sclerosis Walking Scale-12; MSWS-12) were explored. Patient subgroups with mild (Expanded Disability Status Scale; EDSS score <4.0) and moderate to severe disability (EDSS ≥4.0) were analysed for the impact of ambulatory impairment on PA. Multiple linear regression was used to determine predictors of PA.

RESULTS

A total of 56 pwMS completed the study, with a mean (standard deviation, SD) age of 48.4 (10.3) years, disease duration of 14.8 (9.6) years and median (interquartile range) EDSS score of 3.5 (2.0 - 4.4). Moderate to weak correlations were found between daily step count and IPAQ total metabolic equivalent (MET) minutes/week (p < 0.001; r = 0.506), MVPA MET-minutes/week (p < 0.01; r = 0.479) and walking MET-minutes/week (p < 0.05; r = 0.372) in the total cohort. Time spent sitting was inversely correlated with total MET-minutes/week and MVPA MET-minutes/week (p < 0.05; r = -0.358 and r = -0.365). Subgroup analysis revealed, that daily step count was significantly correlated with total MET-minutes/week, MVPA MET-minutes/week and walking MET-minutes/week (p < 0.01, r = 0.569; p < 0.01, r = 0.531 and p < 0.05, r = 0.480, respectively) in the "mild disability" subgroup only, whereas time spent sitting was inversely correlated with total MET-minutes/week (p < 0.05; r = -0.582) in the "moderate to severe disability" subgroup. There was no association between objectively assessed PA and GLTEQ scores in any group. In the total cohort, moderate to weak correlations were found between daily step count and walking assessments (T25FW: p < 0.01, ρ = -0.508; 2MWT: p < 0.01, ρ=0.463) and MSWS-12 (p < 0.001; ρ = -0.609). Moderate to weak correlations were also observed between VO2peak and walking assessments (T25FW: p < 0.01; ρ = -0.516; 2MWT: p < 0.01, ρ=0.480). Multiple linear regression analysis identified disability and VO2peak as predictors of PA (p = 0.045; β=0.25 and p < 0.001; β=0.49).

CONCLUSION

Significant associations of objective PA measurements using accelerometry with IPAQ were found only in pwMS with "mild disability". In pwMS with "moderate to severe disability", IPAQ did not reflect the objectively assessed amount of PA. In our cohort, GLTEQ showed no association with objectively assessed PA. Thus, an MS-specific self-reported questionnaire for assessing PA is warranted.

Study protocol: exercise training for treating major depressive disorder in multiple sclerosis

BACKGROUND

Major depressive disorder (MDD) is prevalent, yet sub-optimally treated among persons with multiple sclerosis (MS). We propose that exercise training may be a promising approach for treating depression in persons with MS who have MDD. Our primary hypothesis predicts a reduction in depression severity immediately after an exercise training intervention compared with minimal change in an attention control condition, and the reduction will be maintained during a follow-up period.

METHODS

This study involves a parallel-group, assessor-blinded RCT that examines the effect of a 4-month home-based exercise training intervention on depression severity in a sample of persons with MS who have MDD based on the MINI International Neuropsychiatric Interview. The primary outcomes of depression severity are the Patient Health Questionnaire-9 and Hamilton Depression Rating Scale. Participants (N = 146) will be recruited from within 200 miles of the University of Illinois at Chicago and randomized (1:1) into either a home-based exercise training condition or control condition with concealed allocation. The exercise training and social-contact, attention control (i.e., stretching) conditions will be delivered remotely over a 4-month period and supported through eight, 1:1 Zoom-based behavioral coaching sessions guided by social-cognitive theory and conducted by persons who are uninvolved in screening, recruitment, random assignment, and outcome assessment. We will collect outcome data at 0, 4 and 8 months using treatment-blinded assessors, and data analyses will involve intent-to-treat principles.

DISCUSSION

If successful, the proposed study will provide the first Class I evidence supporting a home-based exercise training program for treating MDD in persons with MS. This is critical as exercise training would likely have positive secondary effects on symptoms, cognition, and quality of life, and provide a powerful, behavioral approach for managing the many negative outcomes of MDD in MS. The program in the proposed research is accessible and scalable for broad treatment of depression in MS, and provides the potential for integration in the clinical management of MS.

TRIAL REGISTRATION

The trial was registered on September 10, 2021 at clinicaltrials.gov with the identifier NCT05051618. The registration occurred before we initiated recruitment on June 2, 2023.

Internet-delivered lifestyle physical activity intervention for cognitive processing speed in multiple sclerosis

BACKGROUND

We propose a randomized controlled trial(RCT) of a Social Cognitive Theory-based(SCT), Internet-delivered behavioral intervention targeting lifestyle physical activity(LPA) for yielding improvements in cognitive processing speed(CPS), learning and memory(L/M), symptoms, and quality of life(QOL) among persons with mild multiple sclerosis(MS)-related ambulatory impairment who have impaired CPS.

METHODS/DESIGN

The study involves a Phase-II, parallel group, RCT design. Participants with MS(N = 300) will be randomly assigned on an equal basis(1:1) into behavioral intervention(n = 150) or attention and social contact control(n = 150) conditions. The conditions will be administered over 6-months by trained behavior coaches who will be uninvolved in screening, recruitment, random assignment, and outcome assessment. We will collect outcome data remotely every 6-months over the 12-month period(baseline, immediate follow-up, and 6-month follow-up) using a treatment blinded assessor. The primary outcome is the raw, oral Symbol Digit Modalities Test as a neuropsychological measure of CPS. The secondary outcomes include the California Verbal Learning Test-II as an objective measure of L/M, and patient-reported outcomes of fatigue, depressive symptoms, anxiety, pain, and QOL. The tertiary outcome is accelerometry as an objective, device-based measure of steps/day for generating a minimal clinically important difference(MCID) value that guides the prescription of LPA for improving CPS in clinical practice. The primary data analyses will involve intent-to-treat principles, and mixed-effects models and logistic regression.

DISCUSSION

If successful, the proposed study will provide Class I evidence for the efficacy of a theory-based, Internet-delivered behavioral intervention focusing on LPA for improving CPS and mitigating its negative impact on other outcomes in persons with MS.

CLINICALTRIALS

gov: NCT04518657.

Feasibility of a theory-based physical activity intervention for persons newly diagnosed with multiple sclerosis

BACKGROUND

Physical activity (PA) is beneficial for rehabilitation and symptom management in multiple sclerosis (MS), yet persons newly diagnosed with MS are insufficiently active and have not been the focus of PA research. This is important as early initiation of lifestyle PA, alongside other disease modifying therapies, might maximize the lasting benefits of this behavior on health outcomes and health-related quality of life (HRQOL) in MS.

PURPOSE

This single group, pre-post study examined the feasibility and initial efficacy of a 12-week remotely delivered COM-B-based behavior change intervention targeting lifestyle PA in persons newly diagnosed with MS.

METHODS

Persons newly diagnosed with MS (diagnosis of 2 years or less) were recruited for the study. The intervention was designed based on COM-B and formative research, and included a program manual, newsletters, video coaching calls, pedometer, logbook, and calendar. Feasibility was assessed in four domains: process (e.g., recruitment, retention), resource (e.g., time and costs), management (e.g., data management), and scientific evidence (e.g., safety, treatment effects).

RESULTS

Thirty-two persons newly diagnosed with MS underwent screening, 17 were eligible, and 14 started the intervention. Twelve participants completed the study (86 % retention rate). All participants in the intervention engaged in 100 % of video coaching calls and participants provided 73 % of online step count entries. Eighty-three percent of participants fully complied with reviewing the newsletters. No relapses were reported during the intervention. There were moderate-to-large increases in PA outcomes, as measured by the Godin Leisure-Time Exercise Questionnaire, International Physical Activity Questionnaire, and accelerometry (light PA) (d ≥ 0.5). There were no significant changes in other accelerometry outcomes, including step counts and moderate-to-vigorous PA (d = 0.2). There were large, positive effects of the intervention on physical and mental health-related quality of life with (d ≥ 1), but the change in fatigue severity was small and not statistically significant among the study participants (d = 0.3).

CONCLUSIONS

This study provides evidence for feasibility and initial efficacy of a COM-B-based PA intervention for persons newly diagnosed with MS. The results indicate that this intervention was feasible, safe, acceptable, and promising for promoting lifestyle PA in persons newly diagnosed with MS.

Randomized Controlled Trial of the Behavioral Intervention for Physical Activity in Multiple Sclerosis Project: Response Heterogeneity and Predictors of Change

BACKGROUND

We reported that a social cognitive theory-based (SCT), Internet-delivered behavioral intervention increased device-measured minutes/day of moderate-to-vigorous physical activity (MVPA) over a 6-month period among persons with multiple sclerosis (MS). This paper examined the pattern and predictors of heterogeneity in change for MVPA. Based on previous research, we hypothesized that mild MS disability, fewer MS symptoms, lower baseline MVPA, and positive SCT characteristics (e.g., high exercise self-efficacy) would be associated with greater change in MVPA.

METHOD

Persons with MS (N = 318) were randomized into behavioral intervention (n = 159) or attention/social contact control (n = 159) conditions that were administered via Internet websites and supported with behavioral coaching. Demographic, clinical, symptom, behavioral, and SCT data were from before the 6-month period of delivering the conditions, and MVPA data were from before and after the 6-month period. We examined heterogeneity based on waterfall plots, box plots, and the Levene statistic. We identified predictors of MVPA change using bivariate correlation and multiple, linear regression analyses per condition.

RESULTS

The Levene statistic indicated statistically significant heterogeneity of variances for MVPA change between conditions (p = .003), and the waterfall plots and box plots indicated greater heterogeneity in MVPA change for the behavioral intervention. MVPA change score was correlated with baseline MVPA (r =  - .33 and r =  - .34, p = .0004 and p = .0001) in both conditions and walking impairment (r =  - .188, p = .047) and race (r = .233, p = .014) in the behavioral intervention condition. The regression analysis indicated that baseline MVPA (Standardized B =  - .449, p = .000002), self-reported walking impairment (Standardized B =  - .310, p = .0008), and race (Standardized B = .215, p = .012) explained 25.6% of variance in MVPA change for the behavioral intervention condition.

CONCLUSION

We provide evidence for walking impairment, baseline MVPA, and race as predictors of the heterogeneity in the pattern of MVPA change with a behavioral intervention.

Widespread Pain With Nociplastic Features is an Independent Predictor of Low Physical Activity in People with Multiple Sclerosis

Exploring the relationship between underlying pain mechanisms and physical activity could inform interventions to optimize physical activity in persons with multiple sclerosis (PwMS). This cross-sectional nationwide survey examined whether pain phenotype is a significant predictor of self-reported physical activity in PwMS. The study included 938 persons with a self-reported diagnosis of MS (93% reported neurologist-diagnosed MS) who completed surveys of demographic, clinical information, pain intensity, indicators of underlying pain mechanisms (Fibromyalgia Survey Criteria and painDETECT), and physical activity (Godin Leisure-Time Exercise Questionnaire). Responses were used to categorize pain phenotypes as widespread pain with nociplastic features (WPNF), neuropathic, nociceptive, or mixed (neuropathic/WPNF). Following current physical activity guidelines, self-reported physical activity was categorized as active or insufficiently active/sedentary. Applying multivariable logistic regression, participants with no chronic pain had 2.30 higher odds of being physically active when compared to participants with chronic mixed pain. Similarly, participants with neuropathic and nociceptive pain had, respectively, 1.90 and 1.66 higher odds of being physically active compared to individuals with mixed pain. Higher scores on the fibromyalgia survey criteria (operationalized in this study as an indicator of WPNF) were a significant independent predictor of insufficient physical activity (OR = .93, P < .01). Findings indicate that experience and phenotype of chronic pain, in particular WPNF, are associated with physical inactivity in PwMS. This suggests that assessing pain phenotype may be important to identify individuals at risk of inadequate physical activity and may guide the tailoring of behavioral therapeutic approaches to help PwMS achieve the recommended level of physical activity. PERSPECTIVE: This study examines the association between pain mechanism and physical activity in multiple sclerosis. These findings highlight the possibility that a basic screening for pain mechanism could offer clinically useful information without requiring extensive neurobiological phenotyping and may inform the development of behavioral interventions to enhance physical activity in multiple sclerosis.

Social Cognitive Theory Variables as Correlates of Physical Activity Behavior Among Hispanics With Multiple Sclerosis

OBJECTIVE

To examine the association between social cognitive theory (SCT) variables and physical activity (PA) behavior in Hispanic adults with multiple sclerosis (MS).

DESIGN

Observational, survey study.

SETTING

General community.

PARTICIPANTS

Inclusion criteria: (a) age 18 years or older, (b) self-identify as Hispanic or Latino, (c) diagnosis of MS, and (d) English or Spanish as primary language. Two hundred forty-three individuals opened the survey, 24 individuals did not meet inclusion criteria, and 66 individuals were excluded due to not completing any of the SCT variable measures (N=153).

INTERVENTIONS

Not applicable.

MAIN OUTCOME MEASURE(S)

PA was measured using the Godin Leisure Time Exercise Questionnaire (GLTEQ) total and Health Contribution Scores (HCS). SCT variables included standard measures of exercise self-efficacy, planning, goal setting, outcome expectations, social support, and functional impairment.

RESULTS

The final sample included 153 participants with a mean (SD) age of 43 (11) years, 78% identified as women, 57% were employed, and 63% had a college degree or higher. The mean (SD) MS disease duration was 11 (9) years, 74% of participants reported relapsing remitting MS, and median (interquartile range) Patient Determined Disease Steps (PDDS) score was 3.0 (3.0). Significant correlations were observed between all SCT variables and both GLTEQ total and GLTEQ HCS scores (P<.001). Forward stepwise regression with Akaike's Information Criterion (AICC) identified PDDS, age, exercise planning, exercise self-efficacy, and exercise goal setting as the most appropriate covariates and SCT variables to include in a multivariable model examining independent contributions on GLTEQ HCS scores. The multivariable, linear regression analysis indicated that PDDS (Standardized B=-.280, P<.001), exercise planning (Standardized B=.214, P<.05), and exercise self-efficacy (Standardized B=.183, P<.05) explained 42.4% of variance in GLTEQ HCS scores.

CONCLUSIONS

This study provides a contribution to the literature by identifying SCT variables that correlate with PA behavior among Hispanics with MS that may guide the creation of culturally appropriate PA programs.

Sedentary behaviour and related factors in people with multiple sclerosis

BACKGROUND

Sedentary behaviour is a major problem in persons with multiple sclerosis (pwMS). However, little is known about the related factors of sedentary behaviour in MS. Our study aimed to examine the association between sedentary behaviour and physical activity level, fear of falling, and fatigue.

METHOD

Demographic and clinical data have been recorded. Sedentary behaviour was assessed with the Marshall Sitting Questionnaire, physical activity level was evaluated with the Godin Leisure Time Exercise Questionnaire, fear of falling was evaluated with the Fall Efficacy Scale International, and fatigue was evaluated with the modified fatigue impact scale (MFIS). The Timed 25-Foot Walk, 6-Minute Walk Test, Timed Up and Go Test, and 12-Item Multiple Sclerosis Walking Scale were also used to assess walking and perceived walking disability.

RESULTS

We recruited 71 pwMS [49 were female (69 %), mean age:38.08 years, median EDSS:1.5]. The mean daily sitting time was 593.54 min (∼10 h). No significant correlation was found between sitting times and demographics, leisure time physical activity, fear of falling, walking, perceived walking disability, and neurological disability level (p > 0.05). Logistic regression analysis indicated that being male increased the risk of sedentary behaviour by 3.08 times, being employed increased the risk of sitting by 4.65 times, and each point increase in MFIS scores resulted in a 1.03-fold elevation in the odds of prolonged sitting.

CONCLUSION

The fact that pwMS, even with a mild disability spend almost 10 h sitting highlights the significance of sedentary behaviour in this population. Developing strategies to address modifiable factors, such as fatigue, may be effective in reducing sedentary behaviour.

Progression events defined by home-based assessment of motor function in multiple sclerosis: protocol of a prospective study

Background

This study relates to emerging concepts of appropriate trial designs to evaluate effects of intervention on the accumulation of irreversible disability in multiple sclerosis (MS). Major starting points of our study are the known limitations of current definitions of disability progression by rater-based clinical assessment and the high relevance of gait and balance dysfunctions in MS. The study aims to explore a novel definition of disease progression using repeated instrumental assessment of relevant motor functions performed by patients in their home setting.

Methods

The study is a prospective single-center observational cohort study with the primary outcome acquired by participants themselves, a home-based assessment of motor functions based on an RGB-Depth (RGB-D) camera, a camera that provides both depth (D) and color (RGB) data. Participants are instructed to perform and record a set of simple motor tasks twice a day over a one-week period every 6 months. Assessments are complemented by a set of questionnaires. Annual research grade assessments are acquired at dedicated study visits and include clinical ratings as well as structural imaging (MRI and optical coherence tomography). In addition, clinical data from routine visits is provided semiannually by treating neurologists. The observation period is 24 months for the primary endpoint with an additional clinical assessment at 27 month to confirm progression defined by the Expanded Disability Status Scale (EDSS). Secondary analyses aim to explore the time course of changes in motor parameters and performance of the novel definition against different alternative definitions of progression in MS. The study was registered at Deutsches Register für Klinische Studien (DRKS00027042).

Discussion

The study design presented here investigates disease progression defined by marker-less home-based assessment of motor functions against 3-month confirmed disease progression (3 m-CDP) defined by the EDSS. The technical approach was chosen due to previous experience in lab-based settings. The observation time per participant of 24, respectively, 27 months is commonly conceived as the lower limit needed to study disability progression. Defining a valid digital motor outcome for disease progression in MS may help to reduce observation times in clinical trials and add confidence to the detection of progression events in MS.

Results of the MOVE MS Program: A Feasibility Study on Group Exercise for Individuals with Multiple Sclerosis

Exercise improves a wide range of symptoms experienced by those living with multiple sclerosis (MS) and may foster community and a positive sense of disability identity. However, exercise rates remain low. Sustained exercise participation has the greatest likelihood of improving symptoms and requires a theory-based approach accounting for the barriers faced by people with MS that impede exercise participation long-term. MOVE MS is a once weekly group exercise program based on Social Cognitive Theory supporting long-term exercise participation through peer instruction, behavior change education, multiple exercise modalities, and seated instruction. This feasibility study evaluated MOVE MS with a 7-month trial. The primary scientific outcome was exercise participation and the secondary outcomes were MS symptoms/impact, self-efficacy, depression, anxiety, disability identity, and quality of life, among others. We further conducted semi-structured formative interviews post-intervention. Thirty-three participants began the program. The onset of COVID-19 necessitated a shift toward online delivery. Seventeen participants completed the program. There were non-significant improvements in exercise participation (Godin Leisure-Time Exercise Questionnaire, baseline mean = 14.2 (SD = 11.8), post-intervention mean = 16.6 (SD = 11.2), F-value = 0.53 (Partial Eta2 = 0.08), and several secondary outcomes (including the MS Impact Scale, MS Walking Scale, and the Leeds MS Quality of Life Scale). Sixteen participants were interviewed, and analysis yielded five themes on program components and feedback. MOVE MS-delivered in-person or online-may be a feasible option for long-term exercise programming for people with MS.

Physical activity is related to disease severity and fatigue, but not to relapse rate in persons with relapsing remitting multiple sclerosis - a self-reported questionnaire based study

Introduction

Based on theoretical models, physical activity has been introduced as a promoting method to mitigate the disease severity, fatigue and relapse rate in multiple sclerosis. The primary objective of the study was to investigate the relation between self-reported physical activity level and disease severity, fatigue and relapse rate in persons with relapsing remitting multiple sclerosis (RRMS).

Methods

A survey was offered to persons with RRMS from March 2019 to August 2021 (n = 253). Physical activity level, fatigue and disease severity were determined using the Godin Leisure-Time Questionnaire (GLTEQ), the Patient Determined Disease Steps (PDDS) scale and the Fatigue Scale for Motor and Cognitive Functions (FSMC). Additionally, participants' relapse rate was recorded.

Results

Bivariate correlations revealed an inverse relation between physical activity level and PDDS (ρ = -0.279; p < 0.001) as well as between physical activity and FSMC (r = -0.213, p < 0.001), but not between physical activity and relapse rate (r = 0.033, p > 0.05). Multiple linear regression analyses explained 12.6% and 5.2% of the variance of PDDS and FSMC.

Conclusion

Our findings confirm a relation between self-reported physical activity, disease severity and fatigue in persons with RRMS. However, self-reported physical activity level does not seem to affect the annualised relapse rate.

Wearable Sensor Technologies to Assess Motor Functions in People With Multiple Sclerosis: Systematic Scoping Review and Perspective

BACKGROUND

Wearable sensor technologies have the potential to improve monitoring in people with multiple sclerosis (MS) and inform timely disease management decisions. Evidence of the utility of wearable sensor technologies in people with MS is accumulating but is generally limited to specific subgroups of patients, clinical or laboratory settings, and functional domains.

OBJECTIVE

This review aims to provide a comprehensive overview of all studies that have used wearable sensors to assess, monitor, and quantify motor function in people with MS during daily activities or in a controlled laboratory setting and to shed light on the technological advances over the past decades.

METHODS

We systematically reviewed studies on wearable sensors to assess the motor performance of people with MS. We scanned PubMed, Scopus, Embase, and Web of Science databases until December 31, 2022, considering search terms "multiple sclerosis" and those associated with wearable technologies and included all studies assessing motor functions. The types of results from relevant studies were systematically mapped into 9 predefined categories (association with clinical scores or other measures; test-retest reliability; group differences, 3 types; responsiveness to change or intervention; and acceptability to study participants), and the reporting quality was determined through 9 questions. We followed the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) reporting guidelines.

RESULTS

Of the 1251 identified publications, 308 were included: 176 (57.1%) in a real-world context, 107 (34.7%) in a laboratory context, and 25 (8.1%) in a mixed context. Most publications studied physical activity (196/308, 63.6%), followed by gait (81/308, 26.3%), dexterity or tremor (38/308, 12.3%), and balance (34/308, 11%). In the laboratory setting, outcome measures included (in addition to clinical severity scores) 2- and 6-minute walking tests, timed 25-foot walking test, timed up and go, stair climbing, balance tests, and finger-to-nose test, among others. The most popular anatomical landmarks for wearable placement were the waist, wrist, and lower back. Triaxial accelerometers were most commonly used (229/308, 74.4%). A surge in the number of sensors embedded in smartphones and smartwatches has been observed. Overall, the reporting quality was good.

CONCLUSIONS

Continuous monitoring with wearable sensors could optimize the management of people with MS, but some hurdles still exist to full clinical adoption of digital monitoring. Despite a possible publication bias and vast heterogeneity in the outcomes reported, our review provides an overview of the current literature on wearable sensor technologies used for people with MS and highlights shortcomings, such as the lack of harmonization, transparency in reporting methods and results, and limited data availability for the research community. These limitations need to be addressed for the growing implementation of wearable sensor technologies in clinical routine and clinical trials, which is of utmost importance for further progress in clinical research and daily management of people with MS.

TRIAL REGISTRATION

PROSPERO CRD42021243249; https://www.crd.york.ac.uk/prospero/display_record.php?RecordID=243249.

Feasibility of remotely delivered and supported aerobic walking exercise training for cognitive processing speed impairment in fully-ambulatory persons with multiple sclerosis

PURPOSE

The current pilot, single-blind, randomized controlled trial (RCT) examined the feasibility of remotely-delivered and supported aerobic walking exercise training compared with an active control condition on cognitive processing speed (CPS) in 19 fully-ambulatory persons with multiple sclerosis (pwMS) who were pre-screened for impaired CPS.

METHODS

Feasibility was assessed in the domains of process (e.g., recruitment), resource (e.g., monetary costs), management (e.g., time requirements), and scientific outcomes (i.e., treatment effect). Fully-ambulatory, but CPS-impaired pwMS were randomly assigned into either 16-weeks of home-based aerobic walking exercise or home-based stretching and range-of-motion activities. Both conditions involved delivery of informational newsletters and one-on-one, online video chats with a behavior coach. Participants across both conditions tracked their activity using highly accurate wearable motion sensors. Treatment-blinded assessors administered the Symbol Digit Modalities Test (SDMT) remotely before and after the 16-week study period.

RESULTS

The study was cost-effective, accessible, and acceptable. The intervention further was safe. Adherence and compliance rates across both conditions exceeded 80%. There was an overall moderate effect for change in SDMT score between the conditions (d = 0.42). The intervention was associated with a 4.8-point improvement in SDMT scores (d = 0.70; 10% increase) compared with a 1-point improvement for the control condition (d = 0.09; 2% increase).

CONCLUSIONS

This remotely-delivered and supported aerobic walking exercise training intervention was safe and feasible for fully-ambulatory, CPS-impaired pwMS. The pattern of results, including the promising effects on CPS, support the design and implementation of an appropriately-powered RCT on this approach for managing CPS impairment in a large MS sample.

Diet, Physical Activity, and Stress Among Wheelchair Users With Multiple Sclerosis: Examining Individual and Co-Occurring Behavioral Risk Factors

OBJECTIVE

This study examined individual and co-occurring behavioral risk factors (diet, exercise, and stress) in wheelchair users with multiple sclerosis (MS) and potential association with MS symptoms (ie, fatigue, depression, anxiety, pain, sleep, and health-related quality of life [HRQOL]).

DESIGN

Survey.

SETTING

General Community.

PARTICIPANTS

One hundred twenty-three wheelchair users with MS completed this study (N=123).

INTERVENTIONS

Not applicable.

MAIN OUTCOME MEASURES

Participants were mailed instructions for accessing online questionnaires (demographic and clinical characteristics, Godin Leisure-Time Exercise Questionnaire, Perceived Stress Scale, Automated Self-Administered 24-Hour Dietary Assessment Tool, and MS symptoms).

RESULTS

Standard cut-points were used to categorize behavioral risk factors and then identify the extent and distribution of these behaviors both individually and co-occurring. We then analyzed the associations between behavioral risk factors and MS symptoms using bivariate correlation analyses and Mann-Whitney U tests. The mean age of participants was 60.6±10.0 years, 76% identified as women, 82% had a progressive disease course, and the mean MS duration was 23.0±9.7 years. Seven participants were classified as having 0 negative health behaviors, 41 participants had 1 negative health behavior, 49 participants had 2 negative health behaviors, and 26 participants had 3 negative health behaviors. The number of negative health behaviors was significantly correlated with HRQOL (physical, r=.30; psychological, r=.47), sleep (r=.25), depressive symptoms (r=.36), and anxiety (r=.43). Mann-Whitney U tests indicated greater fatigue, depression, and anxiety as well as lower sleep quality and HRQOL among participants who reported 2 or 3 behavioral risk factors compared with 0 or 1 behavioral risk factor.

CONCLUSIONS

Future research should examine the design and implementation of multiple health behavior change interventions targeting co-occurring behavioral risk factors among wheelchair users with MS.

Abnormal thalamic functional connectivity correlates with cardiorespiratory fitness and physical activity in progressive multiple sclerosis

BACKGROUND

Altered thalamic volumes and resting state (RS) functional connectivity (FC) might be associated with physical activity (PA) and cardiorespiratory fitness (CRF) in people with progressive multiple sclerosis (PMS).

OBJECTIVES

To assess thalamic structural and functional alterations and investigate their correlations with PA/CRF levels in people with PMS.

METHODS

Seven-day accelerometry and cardiopulmonary exercise testing were used to assess PA/CRF levels in 91 persons with PMS. They underwent 3.0 T structural and RS fMRI acquisition with 37 age/sex-matched healthy controls (HC). Between-group comparisons of MRI measures and their correlations with PA/CRF variables were assessed.

RESULTS

PMS people had lower volumes compared to HC (all p < 0.001). At corrected threshold, PMS showed decreased intra- and inter-thalamic RS FC, and increased RS FC between the thalamus and the hippocampus, bilaterally. At uncorrected threshold, decreased thalamic RS FC with caudate nucleus, cerebellum and anterior cingulate cortex (ACC), as well as increased thalamic RS FC with occipital regions, were also detected. Lower CRF, measured as peak oxygen consumption (VO_2peak), correlated with lower white matter volume (r = 0.31, p = 0.03). Moreover, lower levels of light PA correlated with increased thalamic RS FC with the right hippocampus (r = - 0.3, p = 0.05).

DISCUSSION

People with PMS showed widespread brain atrophy, as well as pronounced intra-thalamic and thalamo-hippocampal RS FC abnormalities. White matter atrophy correlated with CRF, while increased thalamo-hippocampal RS FC was associated to worse PA levels. Thalamic RS FC might be used to monitor physical impairment and efficacy of rehabilitative and disease-modifying treatments in future studies.

Targeted exercise for African-Americans with multiple sclerosis: Project TEAAMS

BACKGROUND

We propose a randomized controlled trial (RCT) that examines the effects of a remotely-delivered, cultrally-tailored exercise training program for immediate and sustained improvements in patient-reported outcomes (PROs) of walking dysfunction, symptoms, and health-related quality of life (HRQOL) among African-Americans with multiple sclerosis (MS).

METHODS/DESIGN

The study will be conducted using a parallel group RCT design. The RCT examines the effects of a remotely-delivered, culturally-tailored exercise training program compared with an active control condition among 100 African-Americans with MS. The primary PROs focus on walking dysfunction. The secondary PROs include symptoms of fatigue, depression, anxiety, and HRQOL. The tertiary PROs include exercise behavior and mediator variables based on social cognitive theory. Participants will be randomly assigned into one of two conditions, intervention (Aerobic and Resistance Exercise Training) or active control (Stretching and Flexibility), using a random numbers sequence with concealed allocation. The conditions will be administered over four months by a trained behavioral coach who will be uninvolved in recruitment, screening, random assignment, and outcome assessment. We will monitor the outcomes of interest before and after the 4-month intervention period, and then again 4 months after intervention cessation for capturing stability of intervention effects. The data analysis will follow intent-to-treat principles with a linear mixed model.

DISCUSSION

If successful, this RCT will provide initial evidence for the uptake and implementation of the program in clinics/environments providing healthcare for African-Americans with MS.

Primary results of a phase-III, randomized controlled trial of the Behavioral Intervention for increasing Physical Activity in Multiple Sclerosis project

BACKGROUND

We undertook a phase-III, randomized controlled trial (RCT) that examined the effectiveness of a behavioral intervention based on social cognitive theory (SCT) and delivered through the Internet using e-learning approaches for immediate and sustained increases in physical activity among persons with multiple sclerosis (MS).

METHOD

The study followed a parallel group RCT design. Persons with MS (N = 318) were randomized into either behavioral intervention (n = 159) or attention/social contact control (n = 159) conditions. The conditions were administered over a 6-month period by persons who were uninvolved in screening, recruitment, random assignment, and outcome assessment. There was a 6-month follow-up period without access of conditions. We collected outcome data every 6 months over the 12-month period. The primary outcome was device-measured minutes/day of moderate-to-vigorous physical activity (MVPA). The data analysis involved a modified intent-to-treat approach (i.e. those who received the allocated conditions) using a linear mixed model.

RESULTS

There was a significant group by time interaction on the primary outcome of device-measured minutes/day of MVPA (p < 0.005). MVPA was increased immediately after the 6-month period in the behavioral intervention compared with control, and this difference was sustained over the 6-month follow-up.

CONCLUSION

This study provides evidence for the effectiveness of a widely scalable approach for increasing MVPA in persons with MS.

Effect of exergaming in people with restless legs syndrome with multiple sclerosis: A single-blind randomized controlled trial

BACKGROUND

Restless legs syndrome (RLS) is a sensory-motor disorder characterized by an uncomfortable sensation in the lower extremity, triggered by sitting and lying positions and release with motion. There is strong evidence that RLS prevalence is higher in persons with multiple sclerosis (MS, pwMS) than in the general population. Current literature has shown that exergaming as non-pharmacological therapy may be an effective method for symptoms such as balance, walking, fatigue, cognitive functions in pwMS, but the effects on RLS are not known. Therefore, the study's main aim is to investigate the effects of exergaming in pwMS with RLS.

METHODS

Thirty-one pwMS with RLS and 34 pwMS without RLS were randomly divided as exergaming group and control group. The outcome measures were International RLS Study Group Rating Scale, Modified Fatigue Impact Scale, MS Walking Scale, Timed 25-Foot Walk Test, Hospital Anxiety and Depression Scale, Godin-Shephard Leisure-Time Physical Activity Questionnaire, Pittsburgh Sleep Quality Index, Epworth Sleepiness Scale, 6 min Walk Test, Timed and Up Go, MS International Quality of Life questionnaire, MS-Related Symptom Checklist.

RESULTS

26 pwMS with RLS (11 exergaming group, 15 control group) and 27 pwMS without RLS (12 exergaming group, 15 control group) were included in 8-week post-treatment analyses. After an 8-week long-term follow-up, 16 pwMS with and without RLS completed the protocol. The RLS severity (p = 0.004), anxiety level (p = 0.024), sleep quality (0.005), walking (0.004), and balance functions (0.041) were improved in pwMS with RLS exergaming group, while RLS severity increased in control group (p = 0.004). At 8-week follow-up, the effect of exergaming on RLS severity, quality of life, sleep quality, and walking capacity was preserved. There was significant improvement in gait and balance functions in pwMS without RLS exergaming group, there was no significant differences control group. In 8-week follow-up, improvement obtained in pwMS without RLS exergaming group was not preserved.

CONCLUSIONS

This study suggests that exergaming training could be an effective method for managing RLS severity, anxiety, sleep quality, gait, balance, and quality of life in pwMS with RLS.

Depression, Anxiety, and Physical Activity in Older Adults With Multiple Sclerosis

This study examined levels of depression and anxiety symptoms (Hospital Anxiety and Depression Scale scores), and self-reported (Godin Leisure-Time Exercise Questionnaire), and accelerometer-measured physical activity in older adults with multiple sclerosis (n = 40) compared with age- and sex-matched healthy controls (n = 40). We observed differences in depression, anxiety, and physical activity between groups and further observed that minutes/day of moderate to vigorous physical activity partially accounted for group differences in depression scores. We provide preliminary support for research examining approaches for increasing moderate to vigorous physical activity and possibly reducing depression symptoms in older adults with multiple sclerosis.

Mediterranean diet is linked to less objective disability in multiple sclerosis

BACKGROUND

The multiple sclerosis (MS) community is highly interested in diet as a potential protective factor against disability, but empirical evidence remains limited.

OBJECTIVE

Evaluate associations between patient-reported Mediterranean diet alignment and objective disability in a real-world MS cohort.

METHODS

Data were analyzed from persons with MS, aged 18-65, who completed the Mediterranean Diet Adherence Screener (MEDAS), MS Functional Composite (MSFC; primary disability metric), and patient-reported outcomes (PROs; disability, gait disturbance, fatigue, anxiety, and depression) as part of our Comprehensive Annual Assessment Program. Multiple regression predicted MSFC (and PROs) with MEDAS after adjusting for demographic (age, sex, race, ethnicity, and socioeconomic status) and health-related (body mass index (BMI), exercise, sleep disturbance, hypertension, diabetes, hyperlipidemia, and smoking) covariates.

RESULTS

Higher MEDAS independently predicted better outcomes across MSFC (z-score, B = 0.10 (95% confidence interval (CI): 0.06, 0.13), β = 0.18, p < 0.001), MSFC components, and PROs in 563 consecutive patients. Each MEDAS point was associated with 15.0% lower risk for MSFC impairment (⩽ 5th percentile on ⩾ 2 tasks; odds ratio (OR) = 0.850; 95% CI: 0.779, 0.928). Higher MEDAS attenuated effects of progressive disease and longer disease duration on disability.

CONCLUSION

With robust control for potential confounds, higher Mediterranean diet alignment predicted lower objective and patient-reported disability. Findings lay the necessary groundwork for longitudinal and interventional studies to guide clinical recommendations in MS.

Health-Related Quality of Life and Physical Activity in Older Adults With Multiple Sclerosis

BACKGROUND

People with multiple sclerosis (MS) are living longer but not necessarily better lives, and this portends reduced health-related quality of life (HRQOL). Physical activity (PA) may be a correlate of HRQOL for people with MS. We examined differences in HRQOL and PA between older adults with and without MS to determine whether PA is associated with HRQOL and whether it accounts for group differences in HRQOL.

METHODS

Thirty-one older adults with MS and 30 age- and sex-matched controls without MS completed the 36-Item Short Form Health Survey (SF-36) and the Godin Leisure-Time Exercise Questionnaire (GLTEQ). Data were analyzed using the Baron and Kenny approach for examining PA via the GLTEQ as a mediator of group differences in HRQOL.

RESULTS

The MS group had significantly lower component scores on the SF-36 and the GLTEQ than the control group. The GLTEQ scores were correlated with SF-36 physical component scores (r = 0.52), whereas the correlation with mental component scores (r = 0.23) was small and nonsignificant. Group assignment initially explained 31% of the variance in physical component scores (β = 0.55) and adding GLTEQ to the model accounted for an additional 12% of the variance in physical component scores. Thus, group (β = 0.42) and GLTEQ (β = 0.37) were both significant correlates of physical component scores. The group effect was modestly attenuated with the addition of GLTEQ in step 2 (step 1 β = 0.55; step 2 β = 0.42) and indicated partial rather than full mediation.

CONCLUSIONS

These results provide cross-sectional support for future research examining approaches to increase PA to possibly improve the physical component of HRQOL in older adults with MS.

Physical activity behavior in persons newly diagnosed with multiple sclerosis: Applying the Capability - Opportunity - Motivation - Behavior (COM-B) model

BACKGROUND

Physical activity (PA) research in multiple sclerosis (MS) typically has not focused on persons newly diagnosed with the disease. This is noteworthy as PA might be most amenable for change in the early stages of MS and further yield long-term benefits over the disease course.

PURPOSE

This study examined correlates of PA based on the Capability-Opportunity-Motivation-Behavior (COM-B) model in persons newly diagnosed with MS.

METHODS

Participants newly diagnosed with MS (i.e., ≤ 2 years; n = 152) completed an online Qualtrics survey that assessed PA levels and COM-B constructs. Multivariate Analysis of Variance and Discriminant Function Analysis identified the constructs that differentiated PA groups.

RESULTS

The results indicated that 39.5% and 34.2% of the sample were classified as Insufficiently Active and Not Regularly Active, respectively. The results further identified Intention, Action Control, Action Self-efficacy, Action Planning, Outcome Expectation, Goal Setting, and Recovery Self-efficacy, and Fatigue as the primary correlates of PA in persons newly diagnosed with MS.

CONCLUSIONS

Our results identified COM-B constructs in the Capability and Motivation domains as the primary correlates of physical activity in persons newly diagnosed with MS. Such research might inform interventions for changing physical activity in this MS subpopulation.

Methodological heterogeneity biases physical activity metrics derived from the Actigraph GT3X in multiple sclerosis: A rapid review and comparative study

BACKGROUND

Physical activity (PA) is reduced in persons with multiple sclerosis (MS), though it is known to aid in symptom and fatigue management. Methods for measuring PA are diverse and the impact of this heterogeneity on study outcomes is unclear. We aimed to clarify this impact by comparing common methods for deriving PA metrics in MS populations.

METHODS

First, a rapid review of existing literature identified methods for calculating PA in studies which used the Actigraph GT3X in populations with MS. We then compared methods in a prospective study on 42 persons with MS [EDSS 4.5 (3.5-6)] during a voluntary course of inpatient neurorehabilitation. Mixed-effects linear regression identified methodological factors which influenced PA measurements. Non-parametric hypothesis tests, correlations, and agreement statistics assessed overall and pairwise differences between methods.

RESULTS

In the rapid review, searches identified 421 unique records. Sixty-nine records representing 51 eligible studies exhibited substantial heterogeneity in methodology and reporting practices. In a subsequent comparative study, multiple methods for deriving six PA metrics (step count, activity counts, total time in PA, sedentary time, time in light PA, time in moderate to vigorous PA), were identified and directly compared. All metrics were sensitive to methodological factors such as the selected preprocessing filter, data source (vertical vs. vector magnitude counts), and cutpoint. Additionally, sedentary time was sensitive to wear time definitions. Pairwise correlation and agreement between methods varied from weak (minimum correlation: 0.15, minimum agreement: 0.03) to perfect (maximum correlation: 1.00, maximum agreement: 1.00). Methodological factors biased both point estimates of PA and correlations between PA and clinical assessments.

CONCLUSIONS

Methodological heterogeneity of existing literature is high, and this heterogeneity may confound studies which use the Actigraph GT3X. Step counts were highly sensitive to the filter used to process raw accelerometer data. Sedentary time was particularly sensitive to methodology, and we recommend using total time in PA instead. Several, though not all, methods for deriving light PA and moderate to vigorous PA yielded nearly identical results. PA metrics based on vertical axis counts tended to outperform those based on vector magnitude counts. Additional research is needed to establish the relative validity of existing methods.

Characterizing Relationships Between Cognitive, Mental, and Physical Health and Physical Activity Levels in Persons With Multiple Sclerosis

BACKGROUND

Although persons with multiple sclerosis (MS) are encouraged to engage in physical activity, they are less active than the general population and experience poorer emotional/cognitive health, underscoring the need for increased understanding of the factors independently associated with exercise in MS.

METHODS

Six hundred forty people with MS completed a detailed demographic survey, the Godin Leisure-Time Exercise Questionnaire, and Quality of Life in Neurological Disorders short forms. The average number of weekly sessions of exercise was examined as a count, as a binary variable (a weekly minimum of 4 sessions of physical activity), and as an ordinal variable of being active using multivariable zero-inflated negative binomial, logistic, and ordered logistic regression models, respectively. Primary predictors of interest included depression, cognitive function, positive affect, and lower extremity functioning as measured by the Quality of Life in Neurological Disorders short forms.

RESULTS

The study sample was 91% White race, 83% female, 65% with a relapsing-remitting MS diagnosis. The mean participant age was 52 years. Across analyses, body mass index and disability were inversely associated with exercising. Greater lower extremity impairment was associated with decreased odds of exercising and being active. A greater burden of depression symptoms was correlated with lower odds of engaging in physical activity. People with MS with higher self-reported cognitive functioning were less likely to engage in any exercise, but it was not associated with frequency of activities.

CONCLUSIONS

These results demonstrate associations between exercise and cognitive and emotional health in people with MS, underscoring the need to consider these factors when designing MS-targeted physical activity recommendations.

Prevalence of fatigue and its explicative variables among people with multiple sclerosis

BACKGROUND: Fatigue is the most prevalent symptom among people with multiple sclerosis (PwMS). Although exercise effectively reduces fatigue, the relationship between daily physical activity and fatigue has only recently been demonstrated. OBJECTIVE: The aim of this study was to evaluate the prevalence of fatigue and to understand the relationship with several variables in French PwMS. METHODS: Data were collected from 191 PwMS using Modified Fatigue Impact Scale (MFIS) and Fatigue Severity Scale (FSS) for fatigue, and the Godin Leisure-Time Exercise Questionnaire (GLTEQ) for physical activity. RESULTS: 110 PwMS (57%), 35 PwMS (18%) and 46 PwMS (24%) were considered as fatigued, non-fatigued and in the grey zone, respectively. Greater physical activity was observed in non-fatigued PwMS (20.2±19.8) compared to fatigued PwMS (12.5±14.1). FSS and MFIS scores were associated with physical activity (r = –0.28 and r = –0.25, respectively, p <  0.05). Using multivariate analysis, disability, physical activity and being unemployed explained 21% of the variance of the MFIS. CONCLUSIONS: The present study confirms that physical activity and fatigue are associated. Disability and unemployment status should also to be consider when assessing fatigue. Activity-oriented health policies should be redesigned to improve fatigue among PwMS.

Effect of Exercise and Rehabilitation Therapy on Risk of Hospitalization in Parkinson's Disease

Background

Exercise and physical therapy (PT) can improve motor function and quality of life in individuals with Parkinson's disease (PD), but their role in hospitalization avoidance is not well-studied.

Objectives

To determine the longitudinal and temporal association of exercise and PT use with hospital encounter.

Methods

Longitudinal regression and χ2 analyses were performed on Parkinson's Foundation Parkinson's Outcome Project exercise and PT use data from 4674 and 9259 persons with PD, respectively.

Results

Greater exercise duration and intensity were associated with reduced odds of hospital encounter, whereas both PT and occupational therapy use were associated with increased odds. In the 2 years before a hospital encounter, there was an increased frequency of PT use, but not reductions in exercise.

Conclusions

Consistent exercise may reduce hospitalization risk whereas PT referral may identify at-risk individuals without preventing this outcome. Further work to incentivize consistent exercise in PD may reduce healthcare use.

Prospective Associations Between Fathers' Engagement in Infant Caregiving and Their Weight-Related Behaviors and Mental Health

Fathers’ engagement in infant caregiving is linked with positive social, emotional, and developmental outcomes in children; however, its relationship with fathers’ own health is largely unknown. This longitudinal study examined associations between fathers’ caregiving engagement with their 6-month-old infants and their physical activity, sugar-sweetened beverage (SSB) consumption, nighttime sleep duration, and depressive symptoms 6 months later when infants were 12 months old. Participants were 143 fathers of infants (62.7% non-Hispanic White, 82.3% with a bachelor’s degree). Fathers reported their frequency of engagement in seven caregiving activities when infants were 6 months old. Fathers’ physical activity, SSB consumption, nighttime sleep duration, and depressive symptoms were assessed when infants were 6 and 12 months old. Multivariate logistic regression analysis was used to assess if fathers who reported higher infant caregiving at 6 months had more positive health outcomes at 12 months, controlling for fathers’ age, race/ethnicity, education, employment, household income, and the outcome at 6 months. Fathers who reported higher caregiving engagement when infants were 6 months old had increased odds of being sufficiently physically active 6 months later (unadjusted odds ratio [OR] = 1.19, 95% confidence interval [CI] = [1.00, 1.41]; adjusted OR = 1.47, 95% CI = [1.11, 1.96]). No links were identified between fathers’ caregiving engagement and their SSB consumption, nighttime sleep duration, or depressive symptoms. In summary, fathers’ engagement in infant caregiving may be beneficial to their physical activity in the first year after birth. There was insufficient evidence in this study that the benefits of caregiving engagement were experienced broadly across multiple health outcomes.

Social Cognitive Theory variables as correlates of physical activity in fatigued persons with multiple sclerosis

BACKGROUND

There is interest in the application of behavioral interventions based on theory for increasing physical activity among adults with multiple sclerosis (MS). To date, researchers have applied theory such as Social Cognitive Theory (SCT) for identifying correlates of physical activity that can then inform the design and delivery of behavioral interventions. Such research often has been conducted in heterogeneous samples of persons with MS without a focus on those with a specific symptom, such as fatigue, that may be targeted by physical activity behavioral interventions. To that end, this study examined SCT variables (i.e., self-efficacy, barriers, outcome expectations, goal-setting, planning, social support, and functional limitations) as correlates of physical activity in persons with MS who self-reported elevated fatigue.

METHODS

Persons with MS (N=210; aged 49.6[13.2] years) who ambulated with or without assistance participated in the study. Participants completed self-report measures of fatigue, physical activity, and SCT variables and wore an ActiGraph GT3X+ accelerometer on a belt around the waist for 7 days. The accelerometer data were processed and delineated into time spent in light and moderate-to-vigorous physical activity (MVPA) based on MS-specific cut-points. We generated groups of fatigued (n=134) and non-fatigued (n=76) persons with MS based on the cut-off score of 4 for the Fatigue Severity Scale.

RESULTS

There were differences in physical activity and SCT variables between fatigued and non-fatigued persons with MS. Among those with fatigue, functional limitations (ρ=0.52), self-efficacy (ρ=0.31), and goal-setting (ρ=0.25) were associated with device-measured MVPA, and all SCT variables except outcome expectations were associated with self-reported physical activity. The regression analyses indicated self-efficacy, functional limitations, and goal-setting as significant correlates of MVPA in those with fatigue.

CONCLUSION

Self-efficacy, goal-setting, and social support may be important targets of SCT-based behavioral interventions for increasing physical activity among persons with MS who have fatigue.

Fatigue is associated with physical inactivity in people with multiple sclerosis despite different environmental backgrounds: Merging and comparing cohorts from Turkey and Israel

BACKGROUND

Examining leisure-time physical activity in people with multiple sclerosis (PwMS) from different environmental backgrounds might increase understanding and awareness of inactivity in PwMS. Therefore, the study objective was twofold; to compare the level of physical activity in PwMS in Israel and Turkey and to examine the relationship between the level of physical activity with common disease-related symptoms and demographical characteristics of PwMS.

METHODS

Cross-sectional data collected by two centers were combined. The physical activity level was determined by the Godin Leisure-Time Exercise Questionnaire, and subsequently, classified into one of three subgroups: "active", "moderately active" and "insufficiently active". Logistic regressions determined the risks of insufficiently active PwMS, according to age, gender, body mass index, disability, impact of walking impairment, disease duration, type of MS and perceived fatigue. The analysis of variance test determined the differences between countries in terms of outcome variables.

RESULTS

The study comprised 458 patients from Israel and 575 from Turkey; 68.2% Turkish PwMS were classified as insufficiently active compared with 52.0% of Israeli PwMS. The percentage of insufficiently active PwMS was significantly higher in those categorized as fatigued compared to non-fatigued in the total cohort (72.4% vs. 51.9%, p<0.001) and in each country separately. Based on the regression analysis, fatigue was the main factor associated with the insufficiently physically active group; odds ratio=1.968.

CONCLUSION

PwMS with increased fatigue tend to participate in less leisure-time physical activities compared with the non-fatigued. This observation is supported by the merged data collected from two countries, Turkey and Israel, representing PwMS from different environmental backgrounds.

The movement-to-music (M2M) study: study protocol for a randomized controlled efficacy trial examining a rhythmic teleexercise intervention for people with physical disabilities

BACKGROUND

People with physical disabilities need exercise routines that are enjoyable, readily available in the home, adapted to their functional level, and eliminate common barriers to exercise participation related to transportation and time commitment. The purpose of the movement-to-music (M2M) study is to address these issues by establishing a remotely delivered, rhythmic exercise program for people with physical disabilities.

METHODS

The study is a two-arm randomized controlled efficacy trial examining a 12-week remotely delivered M2M intervention (eM2M) in 108 people with physical disabilities. The primary outcomes are changes in cardiorespiratory fitness and muscle strength at post 12-week intervention.

DISCUSSION

The eM2M study will enhance our understanding of an alternative intervention design and delivery mode that removes common barriers to exercise participation experienced by people with physical disabilities. The eM2M intervention may be an alternative option for people with physical disabilities to obtain regular exercise, especially during a pandemic when exercising in indoor facilities may be problematic.

TRIAL REGISTRATION

ClinicalTrials.gov NCT03797378. Registered on January 9, 2019, with the trial name "Movement-to-Music: Lakeshore Examination of Activity, Disability, and Exercise Response Study (M2M LEADERS)".

Translation and validation of the Persian version of Godin Leisure-Time Exercise Questionnaire in patients with multiple sclerosis

Study Design

Psychometric study.

Objective

The purpose of this study is to translate, culturally adapt and evaluate the validity and reliability of the Persian (Farsi) version of GLTEQ in patients with multiple sclerosis.

Methods

This study had three phases, including translation of the questionnaire into Persian and making cultural adaptation, evaluation of pre-final version of questionnaire’s comprehensibility in a pilot study, and investigation of reliability and validity of the final version of the translated questionnaire. Content validity, and convergent validity (correlations among the Persian version of GLTEQ and Global physical activity questionnaire (GPAQ), and international physical activity questionnaire (IPAQ)) and after all test-retest reliability were studied.

Results

The subjects were 87 MS patients. The Persian version demonstrated moderate to good convergent validity; the correlation coefficient between the Persian version and GPAQ was r=0.64 (p<0.001), and between the Persian version and IPAQ was r=0.59 (p<0.001). The test-retest reliability was strong (Intra-class Correlation (ICC) value ranged between 0.908 and 0.992). Besides, its face validity and content validity were acceptable.

Conclusions

The Persian version of GLTEQ is a valid and reliable instrument to assess physical activity in patients with MS. This questionnaire can be a step toward standardization of physical activity measurement in patients with MS. Also, in research, it provides the possibilities to carry on a comparative study across cultures using the same outcome measure.

Supplementary Information

The online version contains supplementary material available at 10.1186/s12883-021-02465-5.

Cardiorespiratory fitness and free-living physical activity are not associated with cognition in persons with progressive multiple sclerosis: Baseline analyses from the CogEx study

BACKGROUND

Aerobic exercise training (physical activity for improving cardiorespiratory fitness) represents a promising approach for managing cognitive impairment in multiple sclerosis (MS). However, there is limited evidence that levels of physical activity and fitness are associated with cognition in progressive MS.

OBJECTIVE

We examined associations among cardiorespiratory fitness, moderate-to-vigorous physical activity (MVPA), and cognitive performance in a large, international progressive MS sample.

METHODS

Two hundred forty European and North American persons with progressive MS underwent cardiorespiratory fitness measurement on a recumbent stepper, wore an ActiGraph GT3X + accelerometer for 7 days for measuring MVPA, and underwent the Brief International Cognitive Assessment in MS.

RESULTS

Cardiorespiratory fitness was not significantly correlated with Symbol Digit Modalities Test (SDMT; r = -0.01; r = -0.04), California Verbal Learning Test-II (CVLT-II; r = 0.05; r = 0.05), or Brief Visuospatial Memory Test-Revised (BVMT-R; r = -0.14; r = -0.14) z-scores controlling for age, sex, and education. MVPA and SDMT (r = 0.05), CVLT-II (r = -0.07), and BVMT-R (r = 0.01) z-scores were not significantly correlated.

CONCLUSION

Cardiorespiratory fitness and MVPA were not associated with cognition in this large progressive MS sample, yet these outcomes represent critical manipulation checks for documenting the success of the CogEx trial. This highlights the importance of examining other exercise-related mechanisms-of-action for improving cognition in progressive MS.

Do physical activity and social cognitive theory variable scores differ across symptom cluster severity groups in multiple sclerosis?

BACKGROUND

Persons with multiple sclerosis (MS) experience co-occurring symptoms termed "symptom clusters" that can be distinguished based on mild, moderate, or severe symptom severity termed "symptom cluster severity." Physical activity (PA) may be an approach for improving co-occurring symptoms.

OBJECTIVE

To examined if PA and social cognitive theory (SCT) variables differed by symptom cluster groups, and if associations between SCT variables and PA were moderated by symptom cluster groups.

METHODS

Secondary analysis of participants with MS (N = 205) enrolled in a cross-sectional study. Trend analyses were conducted to determine if device-measured and self-reported PA and SCT variables (i.e., social support, self-efficacy, outcome expectations, goal setting, planning, and impediments) decreased with increased symptom cluster severity. Spearman rho rank-order correlations were conducted between PA measures and SCT variables within each symptom cluster group.

RESULTS

Linear trend analyses indicated that self-reported PA declined with increased symptom cluster severity groups (F = 4.90,p = 0.03). Linear trend analyses indicated significant differences among symptom cluster severity groups in social support (F = 31.43,p = 0.001), exercise self-efficacy (F = 22.55,p = 0.001), barrier self-efficacy (F = 11.48,p = 0.001), outcome expectations (F = 6.98,p = 0.009), and impediments (F = 34.41,p = 0.001). There were differential associations of moderate magnitude in correlations, such that three SCT variables were associated with PA in the mild group (i.e., self-efficacy, goal setting and planning), two in the moderate group (i.e., social support and goal setting), and four in the severe group (i.e., self-efficacy, outcome expectations, planning, and social support).

CONCLUSIONS

Further research is warranted examining the use of SCT-based behavior change techniques for promoting PA and improving symptom clusters in persons with MS.

Assessing Physical Activity After ACL Injury: Moving Beyond Return to Sport

CONTEXT

Return to sport is widely utilized by sports medicine researchers and clinicians as a primary outcome of interest for successful recovery when working with young patients who have undergone anterior cruciate ligament (ACL) reconstruction (ACLR). While return-to-sport outcomes are effective at tracking progress post-ACLR, they are limited because they do not necessarily capture physical activity (PA) engagement, which is important to maintain knee joint health and reduce the risk of noncommunicable diseases. Therefore, there is a critical need (1) to describe current PA participation and measurement recommendations; (2) to appraise common PA measurement approaches, including patient-reported outcomes and device-based methodologies; and (3) to provide clinical recommendations for future evaluation.

EVIDENCE ACQUISITION

Reports of patient-reported or device-based PA in patients with ACL injury were acquired and summarized based on a PubMed search (2000 through July 2020). Search terms included physical activity OR activity AND anterior cruciate ligament OR ACL.

STUDY DESIGN

Clinical review.

LEVEL OF EVIDENCE

Level 5.

RESULTS

We highlight that (1) individuals with ACLR are 2.36 times less likely to meet the US Department of Health and Human Services PA recommendations even when reporting successful return to sport, (2) common patient-reported PA assessments have significant limitations in the data that can be derived, and (3) alternative patient-reported and device-based assessments may provide improved assessment of PA in this patient population.

CONCLUSION

Clinicians and researchers have relied on return to sport status or self-reported PA participation via surveys. These approaches are not consistent with current recommendations for PA assessment and do not allow for comparison with contemporary PA recommendations or guidelines. Return to sport, patient-reported outcome measures, and device-based assessment approaches should be used in complementary manners to comprehensively assess PA participation after ACLR. However, appropriate techniques should be used when assessing PA in adult and adolescent populations.

CPAP increases physical activity in obstructive sleep apnea with cardiovascular disease

STUDY OBJECTIVES

Uncertainty exists over whether continuous positive airway pressure (CPAP) treatment improves moderate to vigorous physical activity levels in those with obstructive sleep apnea. We aimed to determine effects of CPAP on moderate to vigorous physical activity among participants with co-occurring cardiovascular disease and obstructive sleep apnea.

METHODS

The Sleep Apnea cardioVascular Endpoints (SAVE) trial recruited participants with confirmed cardiovascular disease history and obstructive sleep apnea, 45-75 years old. The 2,687 participants (1,346 randomized to CPAP plus usual care and 1,341 to usual care alone) were followed up for a mean of 3.7 years. Self-reported physical activity was recorded at baseline, 6, 24, and 48 months using the Godin-Shepard Leisure Time Exercise Questionnaire (LTEQ). We also determined effects on any limitation of physical activity reported on the physical functioning subscale of the 36-item short form questionnaire (SF-36) and proportions of participants reaching guideline recommended physical activity levels.

RESULTS

Among 2,601 participants with available data, those in the CPAP group reported significantly more physical activity compared to the usual care group, with approximately 20% higher reported moderate activities on the LTEQ during follow-up (adjusted mean 95% confidence interval) scores: 8.7, 7.5-9.9 vs 7.3, 6.1-8.5; P = .003). Those in the CPAP group also reported less limitation in physical activity (adjusted between-group difference in SF-36 physical functioning subscale score 1.66, 95% confidence interval 0.87-2.45; P < 0.001), and more reported sufficient levels of physical activity to meet recommendations.

CONCLUSIONS

CPAP has positive effects on improving physical activity levels, consistent with long-term health benefits.

CLINICAL TRIAL REGISTRATION

Registry: ClinicalTrials.gov; Name: Continuous Positive Airway Pressure Treatment of Obstructive Sleep Apnea to Prevent Cardiovascular Disease (SAVE); URL: https://clinicaltrials.gov/ct2/show/NCT00738179; Identifier: NCT00738179; and Registry: Australian New Zealand Clinical Trials Registry; Name: Sleep Apnea cardioVascular Endpoints study-An investigation of continuous positive airway pressure for the treatment of obstructive sleep apnea to prevent cardiovascular disease; URL: https://www.anzctr.org.au/Trial/Registration/TrialReview.aspx?id=83062&isReview=true; Identifier: ACTRN12608000409370.

Current and Long-Term Physical Activity Among Adults with Multiple Sclerosis in the United States: COM-B Variables as Explanatory Factors

BACKGROUND

Physical activity is an evidence-based, safe second-line approach for improved multiple sclerosis (MS) symptoms and disease progression. This study examined the contributions of Capability-Opportunity-Motivation-Behavior (COM-B) factors for understanding engagement in current and long-term physical activity among persons with MS in the United States (U.S.).

METHOD

Adults with MS in the U.S. (N = 854) completed an online survey that included questions regarding demographic and clinical characteristics, COM-B constructs, Godin Leisure Time Exercise Questionnaire (GLTEQ), and Physical Activity Staging Questionnaire (PASQ). Participants were classified into groups based on the GLTEQ regarding current physical activity behavior and PASQ for long-term physical activity behavior. MANOVA and discriminant function analysis (DFA) identified COM-B constructs that differentiated physical activity groups.

RESULTS

MANOVA analyses indicated that all COM-B constructs were significantly different for both GLTEQ current physical activity groups (Wilks's λ = .5, F(44, 1432) = 14.8) and PASQ long-term physical activity groups (Wilks's λ = .4, F(44, 1464) = 16.9) status except Information Provision. DFA analysis regarding GLTEQ identified a function including exclusively Capability and Motivation sources of behavior that differentiated current physical activity groups such as intention and self-efficacy. DFA for PASQ identified a different function of the Capability and Motivation sources of behavior that differentiated long-term physical activity groups; the primary differentiating variables were action control and intention.

CONCLUSION

Our results identify internal factors as the primary COM-B predictors of current and long-term physical activity among adults with MS in the U.S., and health promotion interventions may focus on assessing individual competencies and behavioral regulation for changing physical activity in MS.

Factors Associated with Psychological Distress and Physical Activity During the COVID-19 Pandemic

In Morocco, as in many countries, COVID-19 spread nationwide causing a public health emergency. Strict quarantine measures implemented as a result of the pandemic have disrupted many aspects of people's lives, triggering psychological distress. A total of 256 participants were recruited through a convenience sample. Data were collected through snowball sampling, an assessment of distress symptoms using the Brief Symptoms Inventory, and an assessment of leisure-time physical activity using the Godin-Shephard Leisure-Time Physical Activity Questionnaire. Bivariate and multivariate analyses were performed. Significant changes in paranoid ideation (z = -2.45, P = .01) and interpersonal sensitivity (z = -2.01, P = .04) dimensions were noted between those who were and those who were not authorized to leave their homes during quarantine. Similarly, for physical activity, significant changes in depression (z = -2.15, P = .03), anxiety (z = -2.13, P = .03), interpersonal sensitivity (z = -1.95, P = .05), and somatization (z = -2.11, P = .03) were reported among the insufficiently active group compared with the more physically active group. From multiple regression analysis, variables correlated with general distress were type of quarantine, gender, age, education level, chronic disease, and smoking (R² = .80). With some variables, leisure-time physical activity domains appeared to be associated only with interpersonal sensitivity and somatization. Having to leave one's home during the outbreak was linked to distress, especially symptoms like suspiciousness, hostility, fearful thoughts of losing autonomy, and feelings of inadequacy, uneasiness, and discomfort during interpersonal interactions. Individuals who were moderately or sufficiently active physically reported less psychological distress.

Rates, patterns, and correlates of fitness tracker use among older adults with multiple sclerosis

BACKGROUND

Older adults with multiple sclerosis (MS) engage in alarmingly low levels of physical activity. Fitness trackers may be a promising approach for promoting and monitoring physical activity among older adults with MS.

OBJECTIVE/HYPOTHESIS

This study reports on the rates, patterns of fitness tracker use in adults with MS who are over 60 years of age. We hypothesized that older adults with MS who use fitness trackers "users" would report significantly more physical activity than those who don't "non-users."

METHODS

Participants across the United States completed an online survey that included self-reported demographic and clinical characteristics, fitness tracker use questionnaire, and Godin Leisure-Time Exercise Questionnaire (GLTEQ) for measuring total and health-promoting physical activity (GLTEQ-HCS).

RESULTS

Of the 440 participants who completed the full survey, 112 (28%) identified as fitness tracker users. The most common activity monitors were Fitbit®, Smartphone app, Apple® watch, and Garmin®. Fitness tracker users mostly reported having relapsing-remitting MS, less disability (i.e., lower Patient Determined Disability Steps), higher income, and higher rates of employment. There was a statistically significant difference in GLTEQ Total (t(438) = -3.8, p = .001) and GLTEQ-HCS (t(438) = -2.8, p = .006) scores between fitness tracker users and non-users. Self-reported step counts were strongly correlated with both GLTEQ Total (ρ = .50) and GLTEQ-HCS (ρ = 0.54) scores in fitness tracker users.

CONCLUSIONS

Further research is warranted investigating fitness tracker use and interests among older adults with MS and how technology may be applied as a behavioral tool to increase physical activity among this growing portion of the MS population.

The Northumberland Exercise Referral Scheme as a Universal Community Weight Management Programme: A Mixed Methods Exploration of Outcomes, Expectations and Experiences across a Social Gradient

Exercise referral schemes (ERS) are internationally recognised, yet little attention has been paid to discrete referral groups or the influence of wider social determinants of health. The primary quantitative element of this mixed methods study used a mixed effects linear model to examine associations of sociodemographic predictors, obesity class and profession of referrer on weight and physical activity (PA) variables for weight-related referrals (n = 3624) to an established 24-week ERS. Chained equations modelling imputed missing data. The embedded qualitative element (n = 7) used individual semi-structured interviews to explore participant weight-related expectations and experiences. Age, gender and profession of referrer influenced weight loss. PA increased and was influenced by age and gender. The weight gap between the most and least obese narrowed over time but the PA gap between most and least widened. Age, employment and obesity class were most predictive of missing data but would unlikely alter overall conclusions. Qualitative themes were weight-loss support, personal circumstances and strategies, and weight expectations versus wellbeing rewards. This ERS worked, did not widen existing obesity inequalities, but demonstrated evidence of PA inequalities for those living with deprivation. To improve equity of experience, we recommend further stakeholder dialogue around referral experience and ongoing support needs.

Exercise and lifestyle physical activity recommendations for people with multiple sclerosis throughout the disease course

Objectives:

To provide clinicians who treat multiple sclerosis (MS) patients with evidence-based or expert opinion–based recommendations for promoting exercise and lifestyle physical activity across disability levels.

Methods:

The National MS Society (“Society”) convened clinical and research experts in the fields of MS, exercise, rehabilitation, and physical activity to (1) reach consensus on optimal exercise and lifestyle physical activity recommendations for individuals with MS at disability levels 0–9.0 on the Expanded Disability Status Scale (EDSS) and (2) identify and address barriers/facilitators for participation.

Recommendations:

Based on current evidence and expert opinion, the Society makes the following recommendations, endorsed by the Consortium of Multiple Sclerosis Centers:

An Examination of the Relationship Between Motivation, Physical Activity, and Wearable Activity Monitor Use

Wearable physical activity (PA) monitors are widely promoted as a means to motivate people to be more active, but the motivational profile of users has never been assessed. This study's purpose was to classify adult users by their motivational regulation scores and examine how these profiles were associated with moderate to vigorous PA (MVPA). Current users (N = 320) recruited across the United States completed a Web-based survey. Motivational regulations were measured using the Behavioral Regulation in Exercise Questionnaire, and associations with MVPA were explored using bivariate correlations. MVPA was more highly correlated with autonomous rather than controlling regulations. A cluster analysis was conducted using the respondents' motivational regulation scores. Five motivational profiles emerged from this analysis, and they differed significantly across motivation and MVPA scores. PA monitor users characterized by more autonomous motives presented with higher MVPA. As technology use increases, assessing the multidimensionality of PA monitor users' motivation may add value when researching PA behaviors.

Cervical Sensorimotor Control Does Not Change Over Time and Is Not Related to Chronic Idiopathic Neck Pain Characteristics: A 6-Month Longitudinal Observational Study

BACKGROUND

Cervical sensorimotor control (CSMC) outcomes have been suggested to be important in the assessment of individuals with neck pain, despite the lack of consistent supporting evidence that CSMC skills are related to neck pain.

OBJECTIVE

The aim of this study was to investigate whether CSMC changes over time in individuals with chronic idiopathic neck pain and whether neck pain characteristics are associated with CSMC.

DESIGN

A longitudinal observational study was performed.

METHODS

A total 50 participants with chronic idiopathic neck pain and 50 matched participants who were healthy (controls) completed 7 CSMC tests (including 14 test conditions): joint position error, postural balance, subjective visual vertical, head tilt response, The Fly, smooth pursuit neck torsion, and head steadiness. Neck pain characteristics included pain intensity (visual analog scale), pain duration, and neck disability (Neck Disability Index). Linear mixed models were used to investigate whether any factors were associated with changes in CSMC.

RESULTS

Neck pain intensity was associated with 1 of 14 CSMC test conditions (balance with torsion and eyes open), and neck disability was associated with balance with eyes open and high-load head steadiness. Other factors, including sex, age, body mass index, physical activity levels, and neck pain duration, showed no association with CSMC.

LIMITATIONS

Although all other tests involved computerized data collection, the joint position error test was administered manually, introducing the risk of researcher bias.

CONCLUSIONS

The few associations between test conditions and neck pain characteristics were at best weak; hence, these are likely to be chance findings. These results suggest that CSMC may not be associated with improvement/worsening of chronic idiopathic neck pain, spawning debate on the clinical usefulness of CSMC tests.

The Association between Body Mass Index and Leisure-Time Physical Activity in Adults with Multiple Sclerosis

(1) Purpose: Conflicting information exists regarding the relationship between obesity, leisure-time physical activity (PA), and disability in people with multiple sclerosis (PwMS). We aimed to investigate the association between leisure-time PA and weight status in a relatively large cohort of PwMS. Furthermore, we examined this relationship according to the level of neurological disability. (2) Methods: The study included 238 PwMS (138 women) with a mean Expanded Disability Status Scale (EDSS) score of 2.5 (standard deviation [SD] = 1.7), mean disease duration of 6.4 (SD = 8.2) years, and mean age of 40.5 (SD = 12.9) years. Obesity was defined using two different metrics, each based on body mass index (BMI). Leisure-time PA was determined by the Godin-Shephard leisure-time PA questionnaire. Statistical analyses included multivariate logistic regression, the chi-square test, and Pearson coefficient correlations. (3) Results: The unadjusted odds ratio (OR) between leisure-time PA and BMI based on the World Health Organization's (WHO) definition was 1.070 (p = 0.844) for overweight and 1.648 (p = 0.254) for obesity. The adjusted OR was 1.126 (p = 0.763) for overweight and 1.093 (p = 0.847) for obesity after adjustment for age, gender, and disability status. Chi-square analysis revealed no significant correlation between leisure-time PA and obesity (p = 0.564) according to the BMI threshold for PwMS. The unadjusted OR (95% confidence interval [CI]) between disability level and BMI based on the WHO definition was 1.674 (p = 0.220) for overweight and 0.618 (p = 0.460) for obesity. The adjusted OR was 1.130 (p = 0.787) for overweight and 0.447 (p = 0.234) for obesity after adjustment for age, gender, and leisure-time PA. Similarly, chi-square analysis revealed no significant correlation between disability level and obesity (p = 0.701) per the BMI threshold for PwMS. (4) Conclusions: No association was found between leisure-time PA and BMI in PwMS. An additional finding was the absence of any association between obesity and neurological disability level in the multiple sclerosis cohort.

Physical activity participation according to the pyramidal, sensory, and cerebellar functional systems in multiple sclerosis

The objective of the study was to examine the differences in physical activity participation with the pyramidal, cerebellar, and sensory functional systems in people with multiple sclerosis (PwMS). This cross-sectional study included 289 PwMS with a median EDSS of 2.0 (range 0-6.5) and a mean disease duration of 6.8 (SD = 8.4) years. The Godin leisure-time exercise questionnaire (GLTEQ) assessed physical activity participation. The sample was divided into seven groups according to the pyramidal, cerebellar, and sensory functional system scores derived from the EDSS data. Additionally, PwMS were divided into three physical activity subgroups (active, moderately active, and insufficiently active). Furthermore, PwMS were categorized into four levels of disability based on their global Expanded Disability Status Scale (EDSS) score [very mild (0-1.5), mild (2.0-3.5), moderate (4.0-5.5), and severe (6.0-6.5)]. In the physical activity subgroups, 159 (55.0%) were classified as insufficiently active, 59 (20.4%) as moderately active, and 71 (24.6%) as active. Pyramidal, cerebellar, and sensory impairments were demonstrated in 134 (46.4%), 73 (25.3%), and 85 (29.4%) patients, respectively. No differences were found for the GLTEQ scores for all seven functional system groups (P value = 0.168). As for the EDSS disability subgroups, the percentage of active patients (moderately at least) were 60%, 45.8%, 36.5%, and 15.4%, for the very mild, mild, moderate, and severe subgroups, respectively. This study found that participation in leisure-time physical activity is independent from the pyramidal, cerebellar, and sensory functional systems in PwMS.

Exercise-induced attenuation of treatment side-effects in patients with newly diagnosed prostate cancer beginning androgen-deprivation therapy: a randomised controlled trial

OBJECTIVES

(i) To assess whether exercise training attenuates the adverse effects of treatment in patients with newly diagnosed prostate cancer beginning androgen-deprivation therapy (ADT), and (ii) to examine whether exercise-induced improvements are sustained after the withdrawal of supervised exercise.

PATIENTS AND METHODS

In all, 50 patients with prostate cancer scheduled for ADT were randomised to an exercise group (n = 24) or a control group (n = 26). The exercise group completed 3 months of supervised aerobic and resistance exercise training (twice a week for 60 min), followed by 3 months of self-directed exercise. Outcomes were assessed at baseline, 3- and 6-months. The primary outcome was difference in fat mass at 3-months. Secondary outcomes included: fat-free mass, cardiopulmonary exercise testing variables, QRISK^® 2 (ClinRisk Ltd, Leeds, UK) score, anthropometry, blood-borne biomarkers, fatigue, and quality of life (QoL).

RESULTS

At 3-months, exercise training prevented adverse changes in peak O₂ uptake (1.9 mL/kg/min, P = 0.038), ventilatory threshold (1.7 mL/kg/min, P = 0.013), O₂ uptake efficiency slope (0.21, P = 0.005), and fatigue (between-group difference in Functional Assessment of Chronic Illness Therapy-Fatigue score of 4.5 points, P = 0.024) compared with controls. After the supervised exercise was withdrawn, the differences in cardiopulmonary fitness and fatigue were not sustained, but the exercise group showed significantly better QoL (Functional Assessment of Cancer Therapy-Prostate difference of 8.5 points, P = 0.034) and a reduced QRISK2 score (-2.9%, P = 0.041) compared to controls.

CONCLUSION

A short-term programme of supervised exercise in patients with prostate cancer beginning ADT results in sustained improvements in QoL and cardiovascular events risk profile.

Activity monitor use among persons with multiple sclerosis: Report on rate, pattern, and association with physical activity levels

BACKGROUND

Commercially available activity monitors are a promising approach for tracking and changing physical activity in multiple sclerosis.

OBJECTIVE

This study reports on the rate and pattern of activity monitor use in persons with multiple sclerosis, and compares self-reported physical activity levels between persons who do wear and those who do not wear activity monitors.

METHODS

Participants completed a cross-sectional survey that included a demographic and clinical characteristics scale, activity monitor use questionnaire, and Godin Leisure-Time Exercise Questionnaire (GLTEQ) for measuring total and health-promoting physical activity.

RESULTS

Of the 629 participants who completed the full survey, 249 (40%) reported using an activity monitor. The most common activity monitors were Fitbit, Apple watch, iPhone, and Garmin. There was a significant (p < 0.05), moderate difference (d = 0.5) in GLTEQ total scores between activity monitor users (36.6 ± 23.9) and non-users (25.0 ± 22.2), and in GLTEQ Health Contribution Score between activity monitor users (25.6 ± 22.3) and non-users (14.6 ± 18.9) (p < 0.05, d = 0.5). Self-reported steps from the activity monitor were significantly correlated with GLTEQ total score (ρ = 0.45; r = 0.36) and GLTEQ Health Contribution Score (ρ = 0.41; r = 0.35).

CONCLUSION

Activity monitor use is common among persons with multiple sclerosis, and activity monitor users report more total and health-promoting physical activity; this warrants further research investigating how devices may be used as a behavioral intervention tool.