Zohreh Hosseini Siahi - Department Of Health , Behbahan Branch, Islamic Azad University, Behbahan , Iran

Among the effective factors in overweight and obesity in children are genetic, and factors related to the environment, life style including inactivity children such as the overuse of computers ,watch TV for a long time and reduce opportunities to play outside the house .Overweight and obesity is a health and nutritional problem in the world and Iran. The number of people with overweight and obesity is increasing in developed countries and developing countries, including Iran.In this study that was carried out on primary school students of Behbahan showed that between case and control groups in both girls and boys there was significant in relation to intense physical activity per week, this means that is effective number of intense physical activity per week in the incidence of overweight and obesity in school children, girls and boys in Behbahan while between case and control groups in girls the difference was not significant .In relation to the watching TV and using the computer, but differences was significant in boys group, this means that number of hours of watchingTV and computer games are effective in the incidence of overweight and obesity among male students in Behbahan.In this study randomly ۶۰ girls with a BMI above the ۹۵th percentile (as Obesity) and BMI greater than ۸۵ and less than ۹۵ (overweight) were selected and and ۶۰ boys students with a BMI of between ۵ and ۸۵ (natural) were selected randomly, the boys also randomly ۶۰ patients with BMI greater than ۹۵ and a BMI of less than ۹۵ and more than ۸۵ were selected and were selected ۶۰ person with a BMI below the ۸۵th percentile and more than ۵.

physical activity, watching TV, overweight and obesity, students