Journal of North Khorasan

Abstract: Background & Objective: Research shows there is a relationship between body weight consisting of fat mass (FM) and lean body mass (LBM) and bone mineral density. The purpose of this study was to analyze the relationship between fat mass and lean body mass with lumbar spine bone mineral density. Materials and Methods: The present study was a descriptive correlation study on 24 active and non-active postmenopausal women. The active group (n=12) had exercised by walking for one hour, three times a week, for a minimum of three years on a regular basis. The non-active group (n=12) lacked physical activity and they were similar with the active group in the onset of their menopause. Fat mass and lean body mass and bone mineral density of lumbar spine of subjects were measured by DEXA machine. The collected data were analyzed by Pearson correlation test by SPSS 16 software. Results: Results showed that there is a significant relationship between lean body mass and lumbar spine bone mineral density in both the active and non-active postmenopausal women, except for the second lumbar spine bone in non-active postmenopausal women. Conclusion: Lean body mass can be considered as a predicting index for lumbar spine bone mineral density in active and non-active postmenopausal women