Internet-delivered behavioral intervention to increase physical activity in persons with multiple sclerosis: Sustainability and secondary outcomes

Deirdre Dlugonski, Robert W. Motl*, David C. Mohr, Brian M. Sandroff

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

69 Scopus citations

Abstract

Physical activity is associated with many benefits, but persons with multiple sclerosis (MS) are less physically active than the general population. There is a critical need for research on methods of increasing and sustaining the physical activity levels of this population. This randomized controlled trial examined the efficacy of an Internet-delivered and theory-based behavioral intervention that was supplemented with video coaching for increasing and sustaining physical activity over time in persons with MS. Physically inactive, ambulatory persons with MS (N=45) were randomly assigned to intervention (n=22) or control (n=23) conditions and completed a battery of questionnaires before, after, and three months after a 12-week intervention period. Data analyses were conducted in PASW 18.0. Partial eta squared (η P 2) effect size indicated that there was a large, statistically significant condition-by-time interaction on physical activity (η P 2= .17). Cohen's d effect sizes indicated that the intervention group had a large increase in physical activity after the 12-week trial (d=.98) that was sustained over a three-month follow-up (d=.79). The current study supports the efficacy of a behavioral intervention for increasing and sustaining physical activity in a sample of persons with MS.

Original languageEnglish (US)
Pages (from-to)636-651
Number of pages16
JournalPsychology, Health and Medicine
Volume17
Issue number6
DOIs
StatePublished - Dec 1 2012

Keywords

  • behavioral intervention
  • multiple sclerosis
  • physical activity
  • quality of life
  • walking mobility

ASJC Scopus subject areas

  • Clinical Psychology
  • Applied Psychology
  • Psychiatry and Mental health

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