AU - Farmanbar, R AU - Niknami, SH AU - Haidarnia, A AU - Haji zadeh, E TI - Prediction of Exercise Behavior among College Students Based on Transtheoretical Model and Self-determination Theory Using Path Analysis PT - JOURNAL ARTICLE TA - gums-med JN - gums-med VO - 18 VI - 71 IP - 71 4099 - http://journal.gums.ac.ir/article-1-237-en.html 4100 - http://journal.gums.ac.ir/article-1-237-en.pdf SO - gums-med 71 ABĀ  - Abstract Introduction: Despite of many benefits of exercise behavior and active lifestyle, lack of physical activity is a health problem in the community. A key issue in exercise behavior research is identifying psychological variables influencing exercise behavior based on health education models. In light of the complex and dynamic nature of physical activity behavior change, it seems unlikely that a single theoretical approach can truly capture its. In our country, especially among college students, this kind of research has been seriously neglected as a research topic. Objective: Prediction of psychological constructs influence on exercise behavior among college students based on transtheoretical model and self-determination theory using path analysis. Materials and Methods: This study is a cross-sectional study in which 418 first year students of Guilan University of medical sciences completed the valid transtheoretical model, self-determination theory and exercise behavior questionnaire. Data were analyzed by SPSS 16 and LISREL 8.80 using correlation tests and path analysis. Results: All constructs of transtheoretical model and self-determination theory (except external regulation) have significant relationship with exercise behavior. Processes of change (behavioral strategy), self-efficacy in exercise were 0.49 and 0.20 had path coefficient respectively with stage of change as a mediator .Autonomy and processes of change were 0.28 and 0.26 had path coefficient respectively with relative autonomy index. Stage of change as a mediator accounted for 61% of the variance and relative automy index accounted for 48% of the variance in current exercise behavior. The model accounted for 60% of the variance in current exercise behavior. Conclusion: Our findings support the application of combine transtheoretical model with self-determination theory in exercise behavior changes in students. CP - IRAN IN - Health Education Department, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran LG - eng PB - gums-med PG - 35 PT - Research YR - 2009