Longitudinal Change in Physical Activity and Its Correlates in Relapsing-Remitting Multiple Sclerosis

Physical activity is beneficial for people with multiple sclerosis (MS), but this population is largely inactive. There is minimal information on change in physical activity and its correlates for informing the development of behavioral interventions. This study examined change in physical activity...

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Veröffentlicht in:Physical therapy Jg. 93; H. 8; S. 1037 - 1048
Hauptverfasser: Motl, Robert W., McAuley, Edward, Sandroff, Brian M.
Format: Journal Article
Sprache:Englisch
Veröffentlicht: United States American Physical Therapy Association 01.08.2013
Oxford University Press
Schlagworte:
Activities of Daily Living
Analysis of Variance
Behavior
Care and treatment
Depression - physiopathology
Design
Disability Evaluation
Exercise
Fatigue - physiopathology
Female
Gait Disorders, Neurologic - physiopathology
Health aspects
Humans
Linear Models
Longitudinal Studies
Male
Middle Aged
Monitoring, Ambulatory
Monte Carlo Method
Motor Activity - physiology
Multiple sclerosis
Multiple Sclerosis, Relapsing-Remitting - physiopathology
Pain
Pain Measurement
Participation
Physical fitness
Risk Factors
Self Efficacy
Studies
Variables
Walking
ISSN:0031-9023, 1538-6724, 1538-6724
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Zusammenfassung:Physical activity is beneficial for people with multiple sclerosis (MS), but this population is largely inactive. There is minimal information on change in physical activity and its correlates for informing the development of behavioral interventions. This study examined change in physical activity and its symptomatic, social-cognitive, and ambulatory or disability correlates over a 2.5-year period of time in people with relapsing-remitting multiple sclerosis. On 6 occasions, each separated by 6 months, people (N=269) with relapsing-remitting multiple sclerosis completed assessments of symptoms, self-efficacy, walking impairment, disability, and physical activity. The participants wore an accelerometer for 7 days. The change in study variables over 6 time points was examined with unconditional latent growth curve modeling. The association among changes in study variables over time was examined using conditional latent growth curve modeling, and the associations were expressed as standardized path coefficients (β). There were significant linear changes in self-reported and objectively measured physical activity, self-efficacy, walking impairment, and disability over the 2.5-year period; there were no changes in fatigue, depression, and pain. The changes in self-reported and objective physical activity were associated with change in self-efficacy (β=.49 and β=.61, respectively), after controlling for other variables and confounders. The primary limitations of the study were the generalizability of results among those with progressive multiple sclerosis and inclusion of a single variable from social-cognitive theory. Researchers should consider designing interventions that target self-efficacy for the promotion and maintenance of physical activity in this population.
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ISSN:0031-9023
1538-6724
1538-6724
DOI:10.2522/ptj.20120479