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Adapted Resistance Training Improves Strength in Eight Weeks in Individuals with Multiple Sclerosis
Published on: January 29, 2016
Internet-delivered lifestyle physical activity intervention improves body composition in multiple sclerosis:
Lara A Pilutti1, Deirdre Dlugonski2, Brian M Sandroff1
1Department of Kinesiology and Community Health, University of Illinois at Urbana-Champaign, Urbana, IL.
Objective:
To examine the efficacy of a physical activity behavioral intervention for improving outcomes of body composition in persons with multiple sclerosis (MS).
Design:
Secondary analysis of data from a randomized controlled trial.
Setting:
University research laboratory.
Participants:
Ambulatory persons with MS (N=82).
Intervention:
A 6-month, internet-delivered physical activity behavioral intervention designed to increase lifestyle physical activity, primarily walking. The behavioral intervention was based on principles of social cognitive theory.
Main Outcome Measures:
Whole-body bone mineral content (BMC), bone mineral density (BMD), and soft tissue composition, using dual-energy x-ray absorptiometry.
Results:
There were no significant differences between conditions posttrial on body composition outcomes using the adjusted critical value (P<.008). There was a significant effect of the intervention on whole-body BMC (P=.04, ω(2)<.001) and BMD (P=.01, ω(2)=.003) using the unadjusted critical value (P<.05). The effect of the intervention on percent body fat (P=.09, ω(2)=.001) and whole-body fat mass (P=.05, ω(2)=.003) approached significance using unadjusted criteria. There was not a significant effect on whole-body lean soft tissue (P=.28, ω(2)<.001) or body mass index (P=.86, ω(2)<.001).
Conclusions:
Our results provide preliminary evidence that an internet-delivered lifestyle physical activity intervention might improve bone health and body composition in MS. Such findings are important considering that physical activity is a modifiable behavior with the potential to confer long-term benefits for the prevention and management of fracture risk and comorbidities among those with MS.
