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Physical activity, sedentary behavior, and aerobic capacity in persons with multiple sclerosis.

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Title: Physical activity, sedentary behavior, and aerobic capacity in persons with multiple sclerosis.
Author(s): Motl, R.W.; Sandroff, B.W.; Pilutti, L.A.; Klaren, R.; Baynard, T.; Fernhall, B.
Subject(s): Aerobic capacity Fitness Moderate-to-vigorous physical activity Multiple sclerosis Sedentary behavior
Abstract: Background There is substantial evidence that exercise training improves aerobic capacity among people with multiple sclerosis (MS), but less is known about the associations between physical activity and sedentary behaviors with aerobic capacity. Objective This study examined if objectively-measured moderate-to-vigorous (MVPA) and light (LPA) physical activity and sedentary behavior were associated with peak aerobic capacity (VO2peak) measured using an established protocol for conducting a maximal, incremental exercise test in persons with MS. Methods The study involved a cross-sectional, observational study design and included 49 persons with MS. Participants wore an accelerometer around the waist during the waking hours for a 7-day period as a measure of physical activity and sedentary behaviors, and completed a maximal, incremental exercise test on an electronically-braked, computer-controlled cycle ergometer with open-circuit spirometry for measuring VO2peak. Results VO2peak was significantly correlated with MVPA (r = 0.53, p < 0.001) and LPA (r = 0.39, p < 0.01), but not sedentary behavior (r = − 0.12, p = 0.44). Linear regression analysis indicated that MVPA (B = 0.19, SE B = 0.04, β = 0.51, p < 0.001) and LPA (B = 0.02, SE B = 0.01, β = 0.30, p < 0.05), but not sedentary behavior (B = − 0.01, SE B = 0.01, β = − 0.14, p = 0.26), explained significant variance in VO2peak (R2 = 0.40). Conclusion We provide the first evidence that MVPA and LPA represent concurrent correlates of VO2peak and both could be targeted for improving aerobic capacity in persons with MS.
Issue Date: 2017-01-15
Publisher: Elsevier
Citation Info: Motl, R. W., Sandroff, B. M., Pilutti, L. A., Klaren, R. E., Baynard, T. and Fernhall, B. Physical activity, sedentary behavior, and aerobic capacity in persons with multiple sclerosis. Journal of the Neurological Sciences. 2017. 372: 342-346. DOI: 10.1016/j.jns.2016.11.070.
Type: Article
Description: NOTICE: This is the author’s version of a work that was accepted for publication in Journal of the Neurological Sciences. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Journal of the Neurological Sciences, Volume 372, 15 January 2017, Pages 342-346 DOI: 10.1016/j.jns.2016.11.070
URI: http://hdl.handle.net/10027/21651
ISSN: 0022-510X
Date Available in INDIGO: 2017-06-09
 

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