このエントリーをはてなブックマークに追加
ID 32290
JaLCDOI
FullText URL
Thumnail fulltext.pdf 1010 KB
Author
Kawabata, Yasuto
Oka, Takahiro
Yagata, Yukihisa
Takahara, Yasuhiro
Nagashima, Hiroaki
Inoue, Hajime
Abstract

In order to examine fatigue of the knee flexor and extensor muscles and to investigate the characteristics of muscular fatigue in different sports, a Cybex machine was used to measure muscle fatigue and recovery during isokinetic knee flexion and extension. Eighteen baseball players, 12 soccer players and 13 marathon runners were studied. Each subject was tested in the sitting position and made to perform 50 consecutive right knee bends and stretches at maximum strength. This was done 3 times with an interval of 10 min between each series. The peak torque to body weight ratio and the fatigue rate were determined in each case. In all subjects, the peak torque to body weight ratio was higher for extensors than flexors. Over the 3 trials, the fatigue rate of extensors showed little change, while that of flexors had a tendency to increase. In each subject, knee extensors showed a high fatigue rate but a quick recovery, while knee flexors showed a low fatigue rate but a slow recovery. As the marathon runners had the smallest fatigue rates for both flexors and extensors, we concluded that marathon runners had more stamina than baseball players and soccer players.

Keywords
knee flexor and extensor
muscle fatigue
Cybex machine
Amo Type
Article
Published Date
2000-04
Publication Title
Acta Medica Okayama
Volume
volume54
Issue
issue2
Publisher
Okayama University Medical School
Start Page
85
End Page
90
ISSN
0386-300X
NCID
AA00508441
Content Type
Journal Article
language
英語
File Version
publisher
Refereed
True
PubMed ID
Web of Sience KeyUT