<研究論文>女子柔道選手の体重調整による体組成の変化

概要

論文の詳細を見る
In weight-categorized sports, weight loss and weight control have a significant influence on an athlete's competitiveness. This study will attempt to analyze the changes in body composition of athletes as a result of weight loss ofr such sports. Four female university judo club members were used as the subjects for this research. The following measurements using the Hologic QDR-4500 were taken before and after weight control : body weight, body fat percentage, body fat volume(Head, L-arm, R-arm, Trunk, L-leg, R-leg, Totals), and bone mineral density(BMD). The results showed were as follows. An average weight loss of 4.2kg(±1.1)was recorded. This was 6.7%of the body weight before weight control began. An average reduction of 3.6 percent(±1.8)was observed for body fat percentage. Weight reduction of 72.9% was as a result of reduced body fat. Sectional changes in fat volume showed there was a definite reduction in all parts of the body except the head region, (head and face), with the trunk showing the greatest reduction. Subjects had a BMD value that was above average both before and after weight control; this value increased after the weight control had been completed. From these measurements, it can be assumed that fat volume reduction was most apparent in the trunk, and there was no significant influence in BMD through reduction of overall body weight.