investigating the relationship between serum calcium and alkaline phosphatase with bone mineral density in active and inactive men

Purpose: osteoporosis is a decrease in bone density among older adults that can cause painful fractures and disability. one of the most important effective non-pharmacological interventions is having appropriate and continuous physical activity.  the aim of this study was to investigate the relationship between serum calcium and alkaline phosphatase with femur bone mineral density in active and inactive men. method: this study was semi-experimental. 35 active and 35 inactive elderly men aged 65 to 80 years with medical records were selected. anthropometric characteristics, serum calcium and alkaline phosphatase of subjects were used as effective indicators of osteoporosis. pearson's correlation coefficient was used to find the relationship between femur mineral density and serum calcium and alkaline phosphatase, data analysis was done using spss version 26 software. results: the results of this research showed that in both groups of active and inactive men, there was a significant relationship between serum calcium and alkaline phosphatase and femur mineral density (p≤0.05). no significant relationship was found between the height index and mineral density of the femur (p≥0.05).‎ conclusions: in general, the results show that there is a significant relationship between bone density and weight, age, calcium, phosphorus, and serum alkaline phosphatase of all subjects, and the effect of exercise on other bone density indicators can be investigated.‎