【摘要】 目的探讨绝经后女性人群瘦体重、体脂与骨密度(BMD)的关系。方法长沙地区各工作岗位的45~81岁绝经一年以上健康女性志愿者185例,采用美国Hologic QDR-4500A型扇形束DXA仪,测量每例受试者腰椎前后位腰1至腰4及髋部总体面积BMD,单位g/cm2。用美国Hologic QDR-4500A型扇形束DXA仪作全身扫描测出头部、躯干、肋骨、骨盆、脊椎、上肢、下肢及全身的骨矿物含量、BMD、体脂含量和肌肉组织重,结合测得的指标,计算出体重、瘦体重和体脂百分比。结果瘦体重与各个部位骨密度呈显著正相关;总体脂含量与髋部骨密度呈正相关,体脂百分比与全身骨密度呈负相关。结论坚持适当运动以维持瘦体重,有助于减少绝经后女性骨量的丢失。更多还原

【Abstract】 Objective To investigate the relationship between lean body mass,body fat content,and bone mineral density(BMD) in postmenopausal women. Methods A total of 185 healthy women of Changsha,aged between 45 and 81 years,were involved in this study.Hologic QDR-4500A fan beam X-ray bone densitometer was used to measure the BMD of anteroposterior lumber(AP,L1-4) and total hip,the bone mineral content,BMD,body fat content and muscle tissue weight of head,trunk,ribs,pelvis,spine,upper limbs,lower limbs and total body.Body weight,lean body mass and body fat percentage were calculated. Results Lean body mass showed significant positive correlation with BMD of different sites.Total body fat content showed positive correlation with BMD of total hip,while body fat percentage showed negative correlation with BMD of the whole body. Conclusions To keep lean body mass through maintaining proper exercises will protect postmenopausal women from bone loss.更多还原