Abstract
Objectives. To investigate the relationship between the body composition and regional bone mineral density (BMD) in postmenopausal women according to years since menopause (YSM).Methods. A total of 167 postmenopausal women with a mean age of 62.91 ± 5.09 years participated in this cross-sectional study. The average YSM was 11.96 ± 6.28 years. We used the DXA Lunar Prodigy Primo™ device to assess the body composition parameters [body fat mass (BFM) and lean body mass (LBM)] and the BMD of the lumbar spine, proximal femur and total body.Results. The LBM was a stronger predictor of the proximal femur BMD than BFM in 1–10 YSM category, whereas the BFM was a stronger predictor of the proximal femur BMD than LBM in 11–20 and 21–30 YSM categories. The BMD of the lumbar spine showed a similar trend. A significant relationship was found between BMD of L1–L4 and LBM in 1–10 YSM category (r = 0.26; p < 0.05). BFM was significantly associated with BMD of L1–L4 in 11–20 YSM category (r = 0.25; p < 0.05). Significant relationships were found between total femur BMD and LBM in 1–10 YSM (r = 0.27; p < 0.05) and 11–20 YSM category (r = 0.25; p < 0.05). BFM was significantly associated with total femur BMD only in 11–20 YSM category (r = 0.40; p < 0.05).Conclusion. The relationships between BMD and body composition are dependent on YSM and vary between selected segments.
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