Baseline Body Composition and Physical Activity Level Recommended for Optimal Bone Mineral Density in Young Women.
Baseline Body Composition and Physical Activity Level Recommended for Optimal Bone Mineral Density in Young Women.
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DOI：
10.1089/whr.2021.0137
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发表时间：
2022
期刊：
影响因子：
--
通讯作者：
Satoh A
中科院分区：
文献类型：
--
作者：
Lee S;Fujita C;Satoh A
本研究探讨了身体成分和体力活动水平（PAL）对骨矿物质密度（BMD）的影响，以确定维持健康骨小梁和改善年轻女性骨骼健康所需的基线值。受试者，包括健康的年轻女性，被分配到BMD低（BMD-L）或BMD高（BMD-H）组使用骨指数。PAL测量1周，并根据强度水平（代谢当量[MET]）在PAL-1至8的量表上进行评级。采用Wilcoxon秩和检验进行组间比较。与BMD-L组相比，BMD-H组的去脂肌肉质量、骨骼肌指数和基础代谢率显著更高（p < 0.001）。根据强度，关于日常生活中体力活动的时间，BMD-H组的PAL-6（p < 0.01）、PAL-7（p < 0.001）和PAL-8（p < 0.01）显著长于BMD-L组。对于20岁出头的年轻女性来说，骨密度可能与基线身体素质和力量相关，由身体成分决定，但不受身体活动持续时间的影响。PAL ≥6.0 METs可改善或维持对BMD的影响。
This study examined the influence of body composition and physical activity level (PAL) on bone mineral density (BMD) to determine the baseline values necessary for maintaining healthy trabecular bone and improving bone health in young women. The subjects, consisting of healthy young women, were assigned to either a BMD-low (BMD-L) or BMD-high (BMD-H) group using the osteosonic index. PAL was measured for 1 week and rated on a scale from PAL-1 to 8 according to intensity levels (metabolic equivalents [METs]). The Wilcoxon rank-sum test was performed for intergroup comparisons. The BMD-H group had significantly higher fat-free muscle mass, skeletal muscle index, and basic metabolic rate than the BMD-L group (p < 0.001, each). Regarding the timing of physical activity in daily life according to intensity, PAL-6 (p < 0.01), PAL-7 (p < 0.001), and PAL-8 (p < 0.01) for the BMD-H group were significantly longer than those for the BMD-L group. For young women in their early 20s, BMD may be associated with baseline physical fitness and strength, as determined by body composition, but it is not influenced by the duration of physical activity. A PAL ≥6.0 METs may improve or maintain the effect on BMD.
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影响因子：
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作者：
Gardner, Rebekah L.;Harris, Fran;Cummings, Steven R.
通讯作者：
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影响因子：
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