Study on the life fitness in Japanese

日本人的生活健身研究

• 批准号: 12480007
• 负责人: KANEHISA Hiroaki
• 金额: $ 10.11万
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2000
• 资助国家: 日本
• 起止时间: 2000 至 2002
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-12480007/
• 关键词: life fitness; muscle mass; muscle strength; muscle power; age-related change; muscle atrophy; site-related difference; exercise program; 歩行パワー; 走行パワー; 膝伸展筋群; 筋厚; 車椅子利用車; 加齢; 体幹筋量; 超音波法; 歩・走パワー; トレーニング; 中年女性; 身体組成; インピーダンス法; MRI法; 体肢筋

This study aimed 1) to develop a measurement system for assessing muscle mass and function in a large sample, 2) to document the physical working capacity in daily life (life fitness) in Japanese by the use of the system, and 3) to investigate the content of exercise programs required to maintain and/or improve life fitness. The main findings were as the following. 1) Ultrasonograpphic muscle thickness measurement and bioelectrical impedance analysis are useful for estimating accurately the volume of limb muscles. 2) Age-related loss of muscle mass is greater in the lower limb muscles than in the upper limb muscles. Especially, for the knee extensor muscles the age-related loss occurs in the earlier generations as compared to other muscles located in limb. In addition, the abdominal muscle also shows a greater loss with aging with a similar magnitude as observed in the knee extensors. 3) For the lower limb muscles, the influence of aging on the power generation capabilities is greater than that on muscle strength. 4) For elderly women, exercise program with their own body masses as a resistance is effectiveness to improve body composition and power generation capability of lower limb muscles. Moreover, there is a significant correlation between walking step per day and either knee extension torque relative to muscle volume or the bone intensity of calcaneus in elderly women.

本研究的目的是：1）开发一种用于大样本评估肌肉质量和功能的测量系统; 2）使用该系统记录日本人日常生活中的身体工作能力（生活适应性）; 3）调查维持和/或改善生活适应性所需的锻炼计划的内容。主要研究结果如下。1)超声测量肌肉厚度和生物电阻抗分析有助于准确估计肢体肌肉的体积。2)下肢肌肉中与痉挛相关的肌肉质量损失大于上肢肌肉。特别是，与肢体中的其他肌肉相比，膝伸肌的年龄相关性损失发生在早期。此外，腹部肌肉也显示出随着年龄增长的更大损失，其幅度与在膝伸肌中观察到的相似。3)对于下肢肌肉，年龄对发电能力的影响大于对肌肉力量的影响。4)对老年女性而言，以自身体重为阻力的运动计划，对改善身体组成及下肢肌肉的发电能力是有效的。此外，老年妇女每天步行步数与膝关节伸展力矩相对于肌肉体积或跟骨骨强度之间存在显著相关性。

项目成果

Masae Miyatani: "Validity of estimating limb muscle volume by bioelectrical impedance"Journal of Applied Physiology. 91. 386-394 (2001)

Masae Miyatani：“通过生物电阻抗估计肢体肌肉体积的有效性”应用生理学杂志。

Masae Miyatani: "Validity of ultrasonograph muscle thickness measurements for estimating muscle volume of knee extensors in humans"European Journal Applied Physiology. 86. 203-208 (2002)

Masae Miyatani：“超声仪肌肉厚度测量用于估计人类膝关节伸肌肌肉体积的有效性”欧洲应用生理学杂志。

Masae Miyatani, Yoshihisa Masuo, Masamitsu Ito, Hiroaki Kanehisa, Tetsuo Fukunaga: "Validity of estimating limb muscle volume by bioelectrical impedance"Journal of Applied Physiology. 91. 386-394

Masae Miyatani、Yoshihisa Masuo、Masamitsu Ito、Hiroaki Kanehisa、Tetsuo Fukunaga：“通过生物电阻抗估计肢体肌肉体积的有效性”应用生理学杂志。

Masae Miyatani: "Validity of bioelectrical impedance and ultrasonographic methods for estimating the muscle volume of the upper arm"European Journal Applied Physiology. 82. 391-396 (2000)

Masae Miyatani：“生物电阻抗和超声方法估计上臂肌肉体积的有效性”欧洲应用生理学杂志。

Masae Miyatani, Hiroaki Kanehisa, Shinya Kuno, Takahiko Nishijima, Tetsuo Fukunaga: "Validity of ultrasonograph muscle thickness measurements for estimating muscle volume of knee extensors in humans"European Journal of Applied Physiology. 83. 203-208 (200

Masae Miyatani、Hiroaki Kanehisa、Shinya Kuno、Takahiko Nishijima、Tetsuo Fukunaga：“超声仪肌肉厚度测量用于估计人类膝伸肌肌肉体积的有效性”欧洲应用生理学杂志。