等速性筋力測定装置による国内一流陸上競技者の力発揮特性の評価

概要

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The purpose of this study is to evaluate muscle strength in Japanese top athlete using by isokinetic machine (Cybex). Subjects were 8 healthy male (Top group, n = 3; Control group, n = 5). Angular velocity was set 30, 90, 180, 300, 500 degree per second in Cybex machine. The torque of knee joint during extension and flexion was larger in top group than control subjects all through the angular velocity. The torque of knee joint during extension and flexion decreased with increase of angular velocity. The ratio of decrease was smaller in the top group than in the control group significantly. The ratio of extension torque to flexion torque was 2.0 during low angular velocity in both subject groups. The extension/flexion ratio became small with increase of angular velocity. The extension/flexion ratio was smaller in the top group than in the control group. The extension/flexion ratio at high angular velocities (300 and 500 degree/s) was 1.0 in the top group. These results suggest that top athlete has muscle property suitable to sprint performance.
2004-03-31