柔道選手の減量に関する研究(第2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時の形態,体組成および血液性状の変化について―

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 anthropometric measurements, body composition and chemical blood findings.
The following results were obtained.
1. Remarkable decrease of skinfold thickness was observed in abdomen both in LWR and HWR group. Further, in HWR group, same decrease was found in upper arm.
2. Percentages of body fat loss to body weight loss were 59.8% in LWR group and 39.6% in HWR group. In NWR group, it was 80.0% though subject was one.
3. Notable decrease of girth of abdomen was found both in LWR and HWR groups.
4. Blood sugar was kept constant throughout weight reduction peried. During the games, it was inclined to increase gradually.
5. Urea nitrogen (BUN) in HWR group was decreased on the second day, and then notable increase was found. In LWR group, moderate increase was observed throughout weight reduction period.
6. Uric acid in HWR group was significantly high compared with those in LWR and NWR groups. There were no significant differences between in LWR and in NWR groups.
7. Significant decrease of triglyceride was found in HWR group. In LWR group, it was inclined to decrease but it was not significant.
8. Creatinephosphokinase (CPK) in LWR and NWR groups were inclined to increase. On the other hand, that in HWR group was kept constant and it was notable lower level compared with those in LWR and NWR groups during weight reduction period and games.