Lower extremity muscle strength does not independently predict proximal femur bone mineral density in healthy older adults.
Lower extremity muscle strength does not independently predict proximal femur bone mineral density in healthy older adults.
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下肢肌肉力量并不能独立预测健康老年人的股骨近端骨矿物质密度。
DOI：
10.1016/s8756-3282(01)00705-0
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发表时间：
2002
期刊：
影响因子：
4.1
通讯作者：
Grabiner,MD
中科院分区：
文献类型：
--
作者：
Owings,TM;Pavol,MJ;Grabiner,MD
在已发表的文献中描述的老年人肌肉力量和骨密度之间的关系并不完全确定。一些研究中报告的直接关系可能存在偏差，因为未能从数学上解释体重和身高对骨密度和肌肉力量的生物学影响。本研究旨在确定下肢肌肉力量测量值和股骨近端骨矿物质密度之间的关系是否与体型无关（即，身高和体重）。我们招募了50名老年女性和29名老年男性，他们都是健康的社区居民，没有参与阻力训练。定量分析双侧踝、膝、髋关节的等长肌力，评估股骨近端骨密度。使用异速生长缩放程序调整肌肉力量值对身高和体重的影响。股骨近端骨密度与未调整强度值之间的相关性较弱，但具有统计学意义。在调整肌肉力量以解释身高和体重的影响后，骨矿物质密度和肌肉力量之间的相关性的大小大幅降低，并且与零没有显著差异。结果表明，对于一个典型的样本，健康的老年人不参与阻力训练，最大等长肌力的下肢关节和股骨近端骨密度之间的关系是依赖于身体的大小。
The relationship described in the published literature between muscle strength and bone mineral density of older adults is not entirely certain. It is possible that the direct relationship reported in some studies is biased by failing to mathematically account for the biological influence of body weight and body height on both bone mineral density and muscle strength. This study sought to determine if the relationships between measures of lower extremity muscle strength and bone mineral density of the proximal femur are independent of body size (i.e., body height and body weight) in healthy older adults. We recruited 50 older women and 29 older men, all of whom were healthy community dwellers and not involved in resistance training. Quantitative analysis of the isometric strength of the bilateral ankle, knee, and hip joints and assessment of bone mineral density of the proximal femur were conducted. Muscle strength values were adjusted for the influence of body height and body weight using an allometric scaling procedure. The correlations between proximal femur bone mineral density and the unadjusted strength values were weak but statistically significant. After adjusting muscle strength to account for the influence of body height and body weight, the magnitudes of the correlations between bone mineral density and muscle strength diminished substantially and were not significantly different from zero. The results reveal that, for a typical sample of healthy older adults not involved in resistance training, the relationship between maximal isometric muscle strength of lower extremity joints and proximal femur bone mineral density is reliant on body size.
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DOI：
10.1002/jbmr.5650050608
发表时间：
1990
期刊：
Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research
影响因子：
--
作者：
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10.1111/j.1600-0838.1998.tb00485.x
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W. Bevier;R. Wiswell;G. Pyka;K. Kozak;K. Newhall;R. Marcus
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DOI：
--
发表时间：
2020
期刊：
Scandinavian Journal of Rehabilitation Medicine
影响因子：
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