Abstract
BACKGROUND: Osteoporosis is a systemic skeletal disorder characterized by reduction of one mass, deterioration of bone structure, increasing bone fragility, and increasing fracture risk. Prevention of osteoporosis during childhood and adolescence is one of the most important issues in World Health Organization. The purpose of this study was to determine the effect of Health Belief Model based intervention on promoting nutritional behaviors about preventive osteoporosis among the second grade middle school girl students. MATERIALS AND METHODS: This was an experimental intervention study, the research population being 130 students who were randomly divided into groups, experimental (66) and control (64). Before the educational program, Health Belief Model based standard questionnaire and Food Frequency Questionnaire (FFQ) questionnaire were filled up by both the groups. The standard questionnaire was completed three times (before, immediately, and 2 months after education) and FFQ questionnaire was completed two times (before and 2 months after education) by the students. After pre-test, four educational session classes in the experimental group were performed. Finally, data collected were analyzed by SPSS 18 computer software. RESULTS: The result of this study showed a significant increase in the mean score of knowledge, perceived susceptibility, seriousness, benefits, barriers, as well as taking health action among girl students in the experimental group. CONCLUSION: The findings of the present study confirmed the practicability and effectiveness of the Health Belief Model based educational program in promoting nutritional behaviors about prevention of osteoporosis.