服部, 洋兒

中村, 良三

重岡, 孝文

堀安, 高綾

秋田, 武

HATTORI, Yoji

NAKAMURA, Ryozo

SHIGEOKA, Takafumi

HORIYASU, Takaaya

AKITA, Takeshi

[SUMMARY] The present study was carried out to investigate the interrelation between body composition and the class of Judo competitors in Japan national team, on the basis of data from 1982 to 1986. The results obtained were as follows; 1. Most of competitors from -78kg to -95kg classes kept their body weight within the limit of each class. On the other hand, there were no competitors below the limit of each class in -60kg, -65kg and -7lkg classes. 2. The average percent body fat(%Fat) were 13. 2%, 14. 0%, 14. 3%, 15. 0%, 16. 8%, 21. 9% and 32. 6% from -60kg to +95kg classes, respectively. 3. On the relation between record in competition and %Fat, %Fat were lower in A-designated competitors than in B- and C-designated competitors in all classes except for -78kg and +95kg classes. In lighter classes, C-designated competitors showed the significantly higher %Fat than A-and B-designated competitors. 4. Considering the distribution of competitors in the correlation figure between overweight and %Fat, 60% of all competitors belonged to the K block (overweight 0~5kg, %Fat 10~20%). 5. Observing the actual example of competitors who had ever changed their classes, two patterns were showed, one was to change into heavier class and the other was to change into lighter class. Both changes seemed to bring the better results in Judo competition. However, it was also pointed out that more careful administration of body weight and condition were necessary to avoid needless weight reduction after change of class. 6. It was suggested that betterment for body composition would be indispensable even in +95kg class, in addition to their heavy body weight.