Motivation is not enough: prediction of risk behavior following diagnosis of coronary heart disease from the theory of planned behavior

Health Psychol. 2004 Sep;23(5):533-8. doi: 10.1037/0278-6133.23.5.533.


Perceived behavioral control (PBC) and intention, the proximal predictors from the theory of planned behavior (TPB), were used to predict cardiovascular risk behaviors in 597 patients 1 year after diagnosis with coronary heart disease. The outcome measures were self-report measures of exercise plus objective measures of fitness (distance walked in 6 min) and cotinine-confirmed smoking cessation. In multivariate analyses incorporating both PBC and intention, PBC predicted exercise, distance walked, and smoking cessation, but intention was not a reliable independent predictor of any health behavior measured. Thus, the effective theoretical component of the TPB was PBC. Similar predictions could derive from social-cognitive theory. In coronary patients, behavioral change needs to address issues of action implementation rather than motivational factors alone.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Aged
  • Angina Pectoris / diagnosis
  • Angina Pectoris / psychology
  • Angina Pectoris / rehabilitation
  • Behavior Therapy
  • Coronary Disease / diagnosis
  • Coronary Disease / psychology
  • Coronary Disease / rehabilitation*
  • England
  • Exercise / psychology
  • Female
  • Follow-Up Studies
  • Health Behavior*
  • Health Knowledge, Attitudes, Practice*
  • Humans
  • Internal-External Control*
  • Male
  • Middle Aged
  • Motivation*
  • Multivariate Analysis
  • Myocardial Infarction / diagnosis
  • Myocardial Infarction / psychology
  • Myocardial Infarction / rehabilitation*
  • Outcome Assessment, Health Care
  • Physical Fitness
  • Risk-Taking*
  • Secondary Prevention
  • Smoking Cessation / psychology