Decrease in maximal voluntary contraction by tonic vibration applied to a single synergist muscle in humans

被引：84

作者：

Kouzaki, M ^{[1
]}

Shinohara, M ^{[1
]}

Fukunaga, T ^{[1
]}

机构：

[1] Univ Tokyo, Lab Sports Sci, Dept Life Sci, Grad Sch Arts & Sci,Meguro Ku, Tokyo 1538902, Japan

来源：

JOURNAL OF APPLIED PHYSIOLOGY | 2000年 / 89卷 / 04期

关键词：

tonic muscle vibration; synergistic muscles; maximal voluntary contraction; electromyogram;

D O I：

10.1152/jappl.2000.89.4.1420

中图分类号：

Q4 [生理学];

学科分类号：

071003 ;

摘要：

The purpose of the study was to examine the effect of prolonged tonic vibration applied to a single synergist muscle on maximal voluntary contraction (MVC) and maximal rate of force development (dF/dt(max)). The knee extension MVC force and surface electromyogram (EMG) from the rectus femoris (RF), vastus lateralis (VL), and vastus medialis (VM) during MVC were recorded before and after vibration of RF muscle at 30 Hz for 30 min. MVC, dF/dt(max), and the integrated EMG (iEMG) of RF decreased significantly after prolonged tonic vibration in spite of no changes in iEMG of VL and VM. The present results indicate that MVC and dF/dt(max) may be influenced by the attenuated Ia afferent functions of a single synergist muscle.

引用

页码：1420 / 1424

页数：5