衰老对人股直肌区域特异性功能作用和肌肉几何结构的影响。
Effect of aging on region-specific functional role and muscle geometry along human rectus femoris muscle.
作者信息
Watanabe Kohei, Kouzaki Motoki, Moritani Toshio
机构信息
Laboratory of Neuromuscular Biomechanics, School of International Liberal Studies, Chukyo University, Yagotohonmachi, Showa-ku, Nagoya, 466-8666, Japan.
Laboratory of Neurophysiology, Graduate School of Human and Environmental Studies, Kyoto University, Kyoto, Japan.
出版信息
Muscle Nerve. 2017 Nov;56(5):982-986. doi: 10.1002/mus.25556. Epub 2017 Mar 24.
INTRODUCTION
We compared the region-specific neuromuscular activation and muscle morphology along the rectus femoris (RF) muscle between young and elderly.
METHODS
Ratios of surface electromyography amplitude between hip flexion and knee extension (HF/KE) were compared among regions along the muscle for 9 young and 9 elderly men. Muscle thickness was also compared among the regions.
RESULTS
HF/KE in the proximal region was significantly greater than in the middle and distal regions for both the young and elderly (P < 0.05). However, a significant difference in HF/KE between the middle and distal regions was found in the young (P < 0.05), but not in the elderly (P > 0.05). A difference in the region-specific muscle thickness was observed between the young and elderly.
CONCLUSION
These findings suggest that functional role and muscle morphology are regionally affected by aging along the RF muscle. Muscle Nerve 56: 982-986, 2017.
引言
我们比较了年轻人和老年人股直肌（RF）不同区域的神经肌肉激活情况以及肌肉形态。
方法
对9名年轻男性和9名老年男性，比较了沿肌肉各区域的髋关节屈曲和膝关节伸展时表面肌电图幅度的比值（HF/KE）。还比较了各区域之间的肌肉厚度。
结果
年轻人和老年人近端区域的HF/KE均显著大于中部和远端区域（P < 0.05）。然而，年轻人中部和远端区域之间的HF/KE存在显著差异（P < 0.05），而老年人中则不存在（P > 0.05）。年轻人和老年人之间观察到区域特异性肌肉厚度存在差异。
结论
这些发现表明，股直肌不同区域的功能作用和肌肉形态会受到衰老的区域影响。《肌肉与神经》56: 982 - 986, 2017年。
Zotero 插件