The purpose of this study was to investigate the effect of physical activity on forearm muscles in adultmen. Two adultmen who differ in the habit of physical activity seved as subjects of this study. Subjects were employed in three types of handgrip strength. First， they repeated maximal strength 15 times， second sustained handgrip at a tension of 60% of MVC， last increased tensions at a rate of 5kg / 3seconds. We recorded EMG during their trials. There was no difference in MVC. An active man was superior in endurance time at a tension of 60% of MVC. From the previous study，we obtain that the condition occurs intramuscular occlusion. Thus we concluded that FG muscle fibers transform FOG muscle fibers in forearm musclesby physical training
成人男性の握力に及ぼす運動効果に関する筋電図からの検討
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