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首页> 外文期刊>The journals of gerontology.Series A. Biological sciences and medical sciences >Differences in size, strength, and power of upper and lower body muscle groups in young and older men.
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Differences in size, strength, and power of upper and lower body muscle groups in young and older men.

机译：年轻人和老年人中上，下身肌肉群的大小，力量和力量的差异。

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摘要

We compared muscle thickness, torque, normalized torque (torque/muscle thickness), and power at 1.05 rad/s and 3.14 rad/s in flexor and extensor muscles of the elbow and knee, and in ankle plantar flexors in young (n=22, 18-31 years) and older (n=28, 59-76 years) men. Young men had greater muscle thickness for all muscle groups (p<.01), except elbow extensors, which were similar to older men. Young men had greater torque and power at both velocities for all muscle groups (p<.01), and greater normalized torque at both velocities for the elbow extensors and knee flexors and at the fast velocity for knee extensors. Relative to young mean values, muscle thickness, and torque, normalized torque, and power in the older group were most affected for lower-body measurements, especially at the fast velocity. Torque, normalized torque, and power (especially at fast velocities), and muscle thickness in the lower body are affected more by aging than are upper body measures in men.
机译：我们比较了肘部和膝盖的屈肌和伸肌以及年轻的踝thickness屈肌的肌肉厚度，扭矩，标准化扭矩（扭矩/肌肉厚度）和功率在1.05 rad / s和3.14 rad / s时的力量（n = 22） （18-31岁）和年龄较大（n = 28，59-76岁）的男性。年轻男子的所有肌肉群的肌肉厚度都更大（p <.01），除了肘部伸肌外，后者与老年男子相似。年轻人在所有肌肉群的两个速度上均具有更大的扭矩和力量（p <.01），并且在肘部伸肌和膝部屈肌两个方向上均具有更大的归一化扭矩，而膝部伸肌则具有更快的速度。相对于年轻平均值，老年组的肌肉厚度和扭矩，标准化扭矩和力量对下半身的测量影响最大，尤其是在快速运动时。与男性的上半身相比，衰老对下半身的扭矩，标准化扭矩和功率（特别是在快速运动时）和肌肉厚度的影响更大。

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