The purpose of this study is to clarify the characteristics of arm and leg power of university sumo wrestlers.
The measurements of power were made on arm flexion, leg extension and arms extension by inertia load method. The used load of inertia wheel were 25 kg,100 kg and 400 kg equivalent mass on arm flexion and leg extension. In the case of arms extension, the used load consisted of 36 kg,111 kg and 411 kg equivalent mass added to mass of the pushing box (shown in Fig.1-c). The subjects consisted of six top athletes on sumo wrestler, judoists and throwers, respectively.
The results may be summarized as follows:
(1) As regards the average power on load 25 kg (the importance is the factor of speed. ) for arm flexion, the mean of sumo wrestlers was significantly inferior to those of judoists and throwers, and in case of load 400 kg (the importance is the factor of force. ), it was significantly superior to the others. In cas of the average force on load 400 kg for arm flexion, the mean of sumo wrestlers was significantly superior to those of judoists and throwers. With regard to the average velocity on load 25 kg for arm flexion, the mean of sumo wrestlers was significantly inferior to those of judoists and throwers. It was found that sumo wrestlers were inferior to judoists and throwers on the speed, and that they were superior to the others on the force.
(2) As regards the average power on each load for leg extension, the mean of sumo wrestlers was superior to those of judoists and throwers. In case of the average force on load 400 kg for leg extension, the mean of sumo wrestlers was inferior to that of throwers. In case of the average velocity on each load for leg extension, the mean of sumo wrestlers was superior to those of judoists and throwers. It was found that sumo wrestlers were superior to judoists and throwers on both the speed and force, and that they were more superior on the speed than on the force, if anything.
(3) As regards the average power on load 36 kg (the importance is the factor of speed. ) for arms extension, the mean of sumo wrestlers was not so different from that of throwers, and in case of load 411 kg (the importance is the factor of force. ), it was superior to those of judoists and throwers. In case of the average force on each load for arms extension, the mean of sumo wrestlers was superior to those of judoists and throwers. In case of the average velocity on load 36 kg for arms extension, the mean of sumo wrestlers was inferior to those of judoists and throwers. It was found that sumo wrestlers were superior to judoists and throwers on the force.