related factors of physical activity preventive behavior of osteoporosis based on health belief model among teen girls in qom city, iran

background although osteoporosis is a disease of adulthood, it can start from childhood and adolescence. lifestyle, especially physical activity, mobility, and proper nutrition during adolescence are among the important osteoporosis preventive factors. therefore, this study aimed to determine related factors of physical activity preventive behavior of osteoporosis based on the health belief model (hbm) among teen girls in qom city, iran. materials and methods this cross-sectional descriptive analytical study was conducted on 265 tenth to twelfth grade girl students in qom city. the participants were selected via multistage sampling method. a researcher-made questionnaire based on health belief model used for data collection. data were analyzed using spss-20. results the current study, knowledge and perceived self-efficacy had a significant and positive relationship with physical activity behavior (r=0.13, p0.05). conclusion the results of the study showed that educational interventions and programs must focus on increasing knowledge and perceived self-efficacy to enhance physical activity behavior and reduce the perceived barriers associated with osteoporosis preventive physical activity.