中老年人骨骼肌含量、脂肪含量与骨密度的关系

发布时间：2018-01-17 14:10

本文关键词：中老年人骨骼肌含量、脂肪含量与骨密度的关系　出处：《中国体育科技》2017年01期 　论文类型：期刊论文

【摘要】：目的:探究中老年人肌肉、脂肪(FM)与骨密度(BMD)之间的联系。方法:随机招募了年龄范围54~81周岁的277名受试者,男性137人,女性140人。采用相对四肢骨骼肌含量(RASM)方法定义骨骼肌减少症,其年轻成年人平均值和标准差参照中国香港学者发布的数据。结果:控制年龄的影响,四肢骨骼肌含量(ALM)以及相对四肢骨骼肌含量(RASM)与男、女性身体各个区域的BMD显著正相关,脂肪与女性全身、股骨颈BMD显著正相关。在多元模型中,ALM是影响BMD的重要影响因素。结论:对于中老年人,骨骼肌含量与骨密度有紧密正向联系,女性脂肪含量与骨密度有正向联系,建议有必要进一步研究骨骼肌含量与脂肪含量是否独立影响骨密度。
[Abstract]:Objective: to investigate the relationship between muscle fat and bone mineral density (BMD) in middle-aged and elderly people. Methods: 277 subjects (137 males) aged from 54 to 81 years old were recruited randomly. 140 women. Skeletal myasthenia was defined by relative skeletal muscle content (RASM) method. The average and standard deviations of young adults were compared with data published by Hong Kong scholars. Results: control age, skeletal muscle content of limbs and relative skeletal muscle content of limbs were higher than those of males. There was a significant positive correlation between BMD in all regions of the female body, fat and BMD in the whole body and neck of femur. Conclusion: there is a close positive relationship between skeletal muscle content and bone mineral density in middle-aged and elderly people, and a positive correlation between female fat content and bone mineral density. It is suggested that it is necessary to further study whether skeletal muscle content and fat content affect bone mineral density independently.
【作者单位】：浙江体育科学研究所;浙江大学教育学院;
【基金】：国家体育总局2015年全民健身研究领域重点项目(2015B043) 浙江省国民体质与健身技术研究重点实验室科研项目(2011F10052-10(2016)) 中央高校基本科研业务费专项资助项目浙江省公益性技术应用研究计划项目(2104C33226)
【分类号】：R336
【正文快照】： 众所周知,肌肉和骨骼有着共同的影响因素:遗传、营养、生活方式和激素[5,8,30,39]。其中,肌肉和骨骼的相互作用对骨强度也存在一定的影响[12],其机制可能是骨骼对于肌肉的动态负荷产生了承重性适应。这种动态负荷来自于肌肉的收缩和在进行负重活动时地面的作用[14]。遗憾的是,

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