プライオメトリックトレーニングによる心身の変化

―モーションキャプチャを用いて―

抄録

Plyometric training is training aimed at improving muscle power to exert muscular strength under high speed. This training may be expected to raise performance specific to the competition through jumping actions and the like. However, in order to prevent injuries in plyometric training and improve the effectiveness of the training, it is indispensable to acquire appropriate exercise techniques. Therefore, in this research, the athlete who was instructed using plyometric training focused on the process of mastering exercise technique, and carried out performance measurement and analysis during training. First of all, 10 college student athletes participating in the experiment were given explanations about plyometric training exercises (Tiff ankle hop, jump to box, side to side push off), and asked to perform each exercise 10 times. Participants were asked to wear a suit with motion sensors fixed at all 10 body parts, and the rotation angle of each sensor was measured using motion capture. Next, the participants were asked to watch a 12-minute video recording the state of the expert's guidance on the plyometric training. After that, we exercised using plyometric training again, and similarly we measured motion using motion capture. After the experiment, we conducted an interview survey with each participant and asked about performance changes and the strengths and weaknesses of each exercise. When the measured rotation angle was compared before and after the video, a significant difference was observed in the rotation angle of the motion sensors attached to the shoulder, chest, and both feet according to the exercise. Based on the result of motion measurement and the answers obtained from the interview survey, we examined the effects of training guidance on athlete performance.