title: Determinants of physical activity among people with spinal cord injury: a test of social cognitive theory.
abstract: BACKGROUND
  Little theory-based research has focused on understanding and increasing physical activity among people with physical disabilities. Testing a social cognitive theory-based model of determinants is important for identifying variables to target in physical activity-enhancing interventions.
  
  
  OBJECTIVE
  The aim of this study is to examine Social Cognitive Theory variables as predictors of physical activity among people living with spinal cord injury.
  
  
  METHODS
  Structural equation modeling was used to test a model of Social Cognitive Theory predictors of physical activity (n=160).
  
  
  RESULTS
  The model explained 39% of the variance in physical activity. Self-regulation was the only significant, direct predictor. Self-regulatory efficacy and outcome expectations had indirect effects, mediated by self-regulation.
  
  
  CONCLUSIONS
  Social Cognitive Theory is useful for predicting physical activity in people with spinal cord injury. Self-regulation is the most potent Social Cognitive Theory predictor of physical activity in people with spinal cord injury. Self-regulation and its determinants should be targeted in physical activity-enhancing interventions.
authors.affiliation: Department of Kinesiology, Centre for Health Promotion and Rehabilitation, McMaster University, Hamilton, Ontario, Canada. martink@mcmaster.ca
authors.forename: Kathleen A Martin
authors.initials: KA
authors.lastname: Ginis
authors.forename: Amy E
authors.initials: AE
authors.lastname: Latimer
authors.forename: Kelly P
authors.initials: KP
authors.lastname: Arbour-Nicitopoulos
authors.forename: Rebecca L
authors.initials: RL
authors.lastname: Bassett
authors.forename: Dalton L
authors.initials: DL
authors.lastname: Wolfe
authors.forename: Steven E
authors.initials: SE
authors.lastname: Hanna
mesh_terms: D001294:Attitude to Health; D015444:Exercise / Q000523:psychology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D015233:Models, Statistical; D011582:Psychological Theory; D020377:Self Efficacy; D012927:Social Control, Informal; D013119:Spinal Cord Injuries / Q000523:psychology* / Q000534:rehabilitation