EFFECT OF DIFFERENT FREQUENCIES OF SKIPPING ROPE ON ELASTIC COMPONENTS OF MUSCLE AND TENDON IN HUMAN TRICEPS SURAE
EFFECT OF DIFFERENT FREQUENCIES OF SKIPPING ROPE ON ELASTIC COMPONENTS OF MUSCLE AND TENDON IN HUMAN TRICEPS SURAE
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不同跳绳频率对人体小腿三头肌肌腱弹性成分的影响
DOI：
10.7600/jspfsm1949.51.185
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发表时间：
2002
影响因子：
--
通讯作者：
S. Onodera
中科院分区：
文献类型：
--
作者：
H. Yamaguchi;Kenta Yamamoto;Chihiro Edamatsu;Gou Hayata;Takeshi Miyakawa;S. Onodera
本研究的目的是阐明不同频率的跳绳对人体小腿三头肌肌肉和肌腱弹性成分的影响。六名男性受试者进行了十轮跳绳。跳绳节奏为每分钟 100-170 次跳绳 (SPM)。在每轮跳绳过程中记录垂直地面反作用力和小腿三头肌的表面肌电图。肌肉和肌腱的弹性成分通过残余时间（RT：肌肉放电消失点和肌电图消失与地面反作用力波结束之间的滞后时间差）和RTintegrate（RT仍然出现时地面反作用力的积分）来估计。 100 SPM 时的 RT 和 RTintegrate 是所有跳跃频率的最小值。另一方面，100 SPM 时的综合肌电图 (iEMG) 是所有跳跃频率的最大值。虽然 RT 和 RTintegrate 随着 SPM 的增加而逐渐增加，但 iEMG 相应地减少。 RTintegrate 在 170 SPM 时评估的肌肉和肌腱弹性成分的利用率相当于 100 SPM 时的 150%。这些结果表明，跳绳时肌肉和肌腱弹性成分的利用率取决于跳跃频率。 (Jpn. J. Phys. Fitness Sports Med. 2002, 51: 185192) 关键词：跳绳、跳跃频率、肌电图、弹性成分
The purpose of this study was to clarify the effects of different frequencies of skipping rope on the elastic components of muscle and tendon in human triceps surae. Six male subjects performed ten rounds of skipping rope. Skipping tempos were with in a range of 100-170 skips per minute (SPM). The vertical ground reaction force and the surface EMG of triceps surae muscles were recorded during each skipping round. Elastic components of muscle and tendon were estimated by Residual Time (RT : lag time difference between the vanishing point of muscle discharge and disappearance of EMG, and the end of the ground reaction force wave) and RTintegrate (integration of ground reaction force while RT still appears). RT and RTintegrate at 100 SPM were the smallest values for all jump frequencies. On the other hand, integrated EMG (iEMG) at 100 SPM was the largest value for all jump frequencies. Although RT and RTintegrate progressively increased as SPM was increased, iEMG correspondingly decreased. Rate in utilization of elastic components of muscle and tendon assessed by RTintegrate at 170 SPM corresponds to 150% at 100 SPM. These results suggest that the rate in utilization of the elastic components of muscle and tendon while skipping rope, depend on jump frequency. (Jpn. J. Phys. Fitness Sports Med. 2002, 51: 185192) key word : skipping rope, jump frequency, EMG, elastic component