introduction: benefits of regular physical activity are well documented in all age groups; nevertheless, a sedentary lifestyle among adolescents, adults and elderly people in prevalent in nearly all parts of the world. a decline step in activity levels occurs in adolescence. the present study is designed to test: 1) determining the distribution of adolescents on every single one of the stages o...

Background: Regular physical activity (PA) has positive effects on physical, psychological and social health in the individual and the community. Reduced PA is a major global problem that is increasing in prevalence every day. The present study aimed to determine the status of PA among adolescent girls and their perceptions of obesity prevention. Materials and Methods: The present descriptive-a...

background:  in spite of many clear benefits of an active life style, lack of physical activity is considered to be a significant health problem in the college population. the purpose of this study was to determine the effect of health promotion model-based training on promoting physical activity of the students. methods: this study is a randomized controlled trial one, in which 90 male student...