title: Pilot Trial of a Social Cognitive Theory-Based Physical Activity Intervention Delivered by Nonsupervised Technology in Persons With Multiple Sclerosis.
abstract: BACKGROUND
  Physical inactivity is prevalent in people with multiple sclerosis (MS) and this highlights the importance of developing behavioral interventions for increasing physical activity (PA) in MS. This pilot trial examined the efficacy of a 6-week, behavioral intervention based on social cognitive theory (SCT) delivered by newsletters and phone calls for increasing PA in persons with MS who were physically inactive and had middle levels of self-efficacy.
  
  
  METHODS
  The sample included 68 persons with relapsing-remitting MS who were randomly assigned into intervention and control groups. The intervention group received SCT-based information by newsletters and phone calls, whereas the controls received information regarding topics such as stress management over 6 weeks. Participants completed self-report of PA and social cognitive variables.
  
  
  RESULTS
  The intervention group had a significant increase in self-reported PA (d = 0.56, P = .02) over the 6 weeks, but the controls had a nonsignificant change (d = -0.13, P = .45). Goal setting was changed in the intervention group (d = 0.68, P ≤ .01) and identified as a significant mediator of change in self-reported PA.
  
  
  CONCLUSIONS
  This study provides initial evidence for the benefit of a theory-based behavioral intervention for increasing PA in MS.
authors.affiliation: Dept of Kinesiology and Community Health, University of Illinois at Urbana-Champaign.
authors.forename: Yoojin
authors.initials: Y
authors.lastname: Suh
authors.forename: Robert W
authors.initials: RW
authors.lastname: Motl
authors.forename: Connor
authors.initials: C
authors.lastname: Olsen
authors.forename: Ina
authors.initials: I
authors.lastname: Joshi
mesh_terms: D000328:Adult; D001521:Behavior Therapy / Q000379:methods*; D003071:Cognition; D003142:Communication; D005260:Female; D006266:Health Education; D006801:Humans; D008297:Male; D008875:Middle Aged; D009043:Motor Activity / Q000502:physiology*; D020529:Multiple Sclerosis, Relapsing-Remitting / Q000523:psychology*; D010865:Pilot Projects; D020377:Self Efficacy; D057566:Self Report