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As a result of the comfort caused by new technological improvements, lifestyles of human-beings keep changing on and effectiveness that is named as physical activity decreases. The decreasement at the physical activities reveal diseases which introduce new problems for the health of the society. When the diseases that were frequently seen and caused death in the year 1900 were tuberculosis,cold and diarrhea; today, as a result of the lack of motion , heart diseases, cancer and apoploxy are listed. For these reasons, by determining the levels of the physical activities of each person, guiding the people with a low level of physical activity to a high level reveal a great importance for the health of the society.The aim of this study is to determine the physical activity levels of the voluntary teaching stuff working in İstanbul University. In order to determine the physical activity levels of the test subjects, Physical Activity Searching (FADA) questionnaire, guaranteed by Karaca (2000) and friends were applied. In this questionnaire, the working area, houseworks, hobbies, sleeping duration, stair using, transportation and the physical activity level of the test subjects were researched. 170 voluntary teaching stuff (professor, assistant professor, pHD, research assistant), including 101 female at the age of 34,802±9,003 having a body weight of 60,198±7,903 and 69 male at the age of 35,942±7,729 having a body weight of 83,841±14,960, avaragely, joined in this study. According to the results of the questionnaire, the body mass indexes (BKI) and daily calori consumption – body weight ratio for different activities (GKH) were calculated. SPSS statics programme was used at evaluating the results. In addition to the relationship between dependent and independent variables, a comparision about the group avarage was done. As a result of evaluating the statics,for the female test subjects, a positive meaningful relationship was found between the GKH and the age (p<0,035) when there was no meaningful relationship between the GKH and BKİ (p<0,05). Male test subjects had neither meaningful relationship between the GKH and BKİ, nor GKH and the age (p<0,05). According to the profession (Law, Political Information, Veterinary, Management, Communication and Physical Education and Sports) and academical title (professor, assistant professor, pHD, research assistant) of the female test subjects, a meaningful difference was found for BKİ and but not for GKH. According to the profession (Law, Political Information, Veterinary, Management, Communication and Physical Education and Sports) and academical title (professor, assistant professor, pHD, research assistant) of the male test subjects, a meaningful difference was found for BKİ and but not for GKH. (p<0,05) In Conclusion, the physical activity levels of teaching stuff in different faculties of İstanbul University were found to be similar when the BKİ values were showing differences.When compared with the similar studies, the daily activity of the research test subjects were defined as low.