人体筋の力・速度・パワー関係に及ぼすトレーニング効果

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The effects of different intensities of muscle training on the force, velocity and power relationship have been examined on human elbow flexor muscles. Twenty male subjects, 18-22 years of age, were divided into 4 different groups ; G_0, G_<30>, G_<60> , and G_<100>.Their training loads were prescribed by a fraction of isometric strength (P_0) measured at right angle of elbow joint : 0% P_0 (G_0 ; isotonic contraction without load), 30% P_0 (G_<30>), 60% P_0 (G_<60>), and 100% P_0 (G_<100> ; isometric contraction). The subject contracted his elbow flexors with maximum effort 10 times a day, 3 days a week for 12 weeks. The force-velocity relations and the resultant power output were determined, before and after training period, by a modified Wilkie's apparatus. The training by maximum isotonic contraction without load (G_0) was found to be most effective for improving maximum velocity (V_0), while the isometric training improved isometric strength (P_0) most. For this, the P-V relations of these groups were specifically modified by greater velocity component (G_0) or greater force component (G_<100>). The G_<30> and G_<60> groups showed such all-round improvements that the P-V relations shifted in parallel with those of pre-training period. The maximum power (PVmax), which calculated from P-V relationship, increased most in G_<30>, followed by G_<100>, G_<60>, and G_<0> groups. From, these results it was concluded that the different training loads brought about specific effects on P-V relation, and that the most effective load for improving maximum power was 30% of isometric strength.
日本体力医学会の論文
1981-04-01

人体筋の力・速度・パワー関係に及ぼすトレーニング効果

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