柔道選手の減量に関する研究(第1報)

―第31回関東甲信越国公立大学体育大会柔道競技参加選手の減量方法に関する実態調査―

抄録

The purpose of this study was to investigate the realities of weight reduction of Judoist. Seven healthy students were used as the subjects, who all would participate in weight-classified game a week later. In this report, we dealt with weight reduction means, energy intake and subjective symptom of fatigue. The following results were obtained.
1. Although subject A and D w'ere not necessary to reduce their weight, they tried to do weight reduciton a little to control their body weight daily. Subject C, E and F tried to reduce their body weight by means of cutting their food intake down a little, running, taking a bath and/or daily practice of Judo. Their final weight losses were rangesd between 3 and 3.7%. Subject C already reduced to be 4.1% weight loss in the morning on the official weighing day. Subject B and G were necessary to reduce their body weight about 5.8% and 5.0%, respectively. But in the morning on the second day, their body weight increased, so they had to reduce to be about 6.1% and 6.0% weight loss in 3 days, rspectively. Therefore, they had the means of extreme reduction of diet and dehydration with a sauna bath for a long time.
2. The fairly high correlation (r=0.918) was observed between amount of subjective symptom of fatigue and ratio of weight loss in five subjects except subject A and D who were not necessary to reduce their weight.