大学ボクシング選手の急速減量期における栄養摂取および全身持久力の変化

―3名の選手を対象とした事例的検討―

抄録

  The purpose of this study was to evaluate the influences of acute weight reduction on dietary intake, aerobic power, and sleep in elite university boxing athletes. The subjects consisted of 3 university boxing athletes. The weight loss rate was 3.9-4.6%, and the weight reduction period was 4-10 days. The body weight reached the target value 4 days before weighing in all subjects. The energy intake decreased by 50-60% during the weight reduction period compared with the pre-reduction value. The intakes of 3 major nutritional elements and trace elements also decreased. However, one of the subjects showed an increase in energy intake. The maximum oxygen uptake did not change, but that per body weight increased in all subjects. The sleep time increased during the weight reduction period compared with the pre-reduction value in all subjects. Two subjects stated that the present weight reduction method is not appropriate for them, but one of them reported that the present method will not change in the future.