Abstract
Background: To investigate of physical activity distribution bases on stages of change among Isfahan University of Medical Sciences central part of Iran. Methods: Exercise behavior stages of change construct questionnaire were collected from 504 participants by using a convenience sample in May 2010. Results: 73.8% of subjects were in earlier stages of exercise behavior (Precontemplation, contemplation, and preparation stages) and tended to be inactive. The exercise behavior was not influenced by age, education levels, and marital status. Conclusion: The majority of the university students are suffering physical inactivity that need to design more effective physical activity promotion programs in the community and universities level.