title: Promoting self-determined motivation for exercise in cardiac rehabilitation: the role of autonomy support.
abstract: OBJECTIVE
  Using self-determination theory (SDT), we examined relationships between cardiac rehabilitation (CR) participants' perceived autonomy support, motivation for exercise, and exercise behavior.
  
  
  METHODS
  Male CR outpatients (N = 53; M age = 62.83 +/- 10.78 years). The design was correlational (cross-sectional and prospective), examining relationships between perceived autonomy support and motivation for exercise at Week 4 of CR participation as well as motivation and CR attendance and other indicators of exercise behavior (frequency, duration, total exercise time) at a 1-week follow-up, 10 weeks later.
  
  
  RESULTS
  Perceived autonomy support was correlated with self-determined motivation, r(53) = .32, p < .05. Self-determined motivation predicted total exercise volume at follow-up, r(53) = .34, p < .05, as well as length of exercise session duration (R(2) = .27; beta = .52, p < .001).
  
  
  CONCLUSIONS
  Results support SDT and the potential for autonomy support from interventionists to affect self-determined motivation and exercise behavior of participants involved in CR.
authors.affiliation: Department of Kinesiology, McMaster University, 1280 Main Street West, Hamilton, Ontario, Canada.
authors.forename: Kelly L
authors.initials: KL
authors.lastname: Russell
authors.forename: Steven R
authors.initials: SR
authors.lastname: Bray
mesh_terms: D000072038:Cardiac Rehabilitation; D003430:Cross-Sectional Studies; D015444:Exercise; D005260:Female; D006293:Health Promotion; D006801:Humans; D008297:Male; D008875:Middle Aged; D009042:Motivation; D010342:Patient Acceptance of Health Care / Q000706:statistics & numerical data; D026684:Personal Autonomy; D011446:Prospective Studies; D011582:Psychological Theory