Related Experiment Videos
Construct validity of stages of change for exercise behavior
1Department of Exercise and Sport Science, Oregon State University, Corvallis 97331-3302, USA.
American Journal of Health Promotion : AJHP
|August 5, 1997
Summary
This study supports the stage-of-change model in exercise, finding significant differences in fitness, behavior, and psychological factors across exercise stages. Accurate stage assessment can improve physical activity promotion.
Area of Science:
- Behavioral Science
- Exercise Physiology
- Health Psychology
Background:
- Transtheoretical model research in exercise is limited by self-report measures and inconsistent stage assessment.
- Previous studies have not fully explored associations between exercise stages and various health-related variables.
Purpose of the Study:
- To determine the association between stage of exercise and body mass index, cardiorespiratory fitness, exercise behavior, relapse, barriers, and self-efficacy.
- To address limitations of previous research by using objective measures and controlling for confounders.
Main Methods:
- A descriptive, cross-sectional study involving 235 adults.
- Participants were classified by stage of exercise.
- Compared behavioral, biometrical, and psychological variables, controlling for social desirability and demographics.
Main Results:
- Significant differences were found between exercise stages for the overall set of dependent variables (p < .0001).
- Significant differences were observed for each dependent variable individually (p < .01).
- The proportion of variance accounted for by dependent variables ranged from .06 to .53.
Conclusions:
- The study provides objective support for the stage-of-change model in the exercise domain.
- Accurate assessment of exercise stage is crucial for enhancing physical activity promotion efforts.
- Findings can inform researchers and clinicians in developing more effective interventions.