Exercise behavior in older adults: A test of the transtheoretical model

Corjena Cheung, Jean Wyman, Cynthia Gross, Jennifer Peters, Mary Findorff, Holly Stock

Research output: Contribution to journalArticlepeer-review

23 Scopus citations


The transtheoretical model (TTM) was developed as a guide for understanding behavior change. Little attention has been given, however, to the appropriateness of the TTM for explaining the adoption of exercise behavior in older adults. The purposes of this study were to determine the reliability of the TTM instruments and validate TTM predictions in 86 community-dwelling older adults (mean age 75.1 ± 7.0 years, 87% women) who were participants in a 16-week walking program. TTM construct scales - self-efficacy, decisional balance (pros and cons), and processes of change (behavioral and cognitive) - were generally reliable (all α > .78). Behavioral processes of change increased from baseline to follow-up, but pros, cons, and cognitive processes did not change among participants who became regular exercisers. Stage of change did not predict exercise adoption, but baseline self-efficacy predicted walking behavior. These results lend partial support to the TTM in predicting exercise behavior.

Original languageEnglish (US)
Pages (from-to)103-118
Number of pages16
JournalJournal of Aging and Physical Activity
Issue number1
StatePublished - Jan 2007


  • Behavior change
  • Exercise adherence
  • Exercise adoption
  • Walking program


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