<研究論文>柔道選手のトレーニング期および減量期における栄養補給が身体組成と最大無酸素パワーに及ぼす影響

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An investigation of nutritional supply, body composition, physical working capacity (maximal anaerobic power), and subjective symptoms of the sensual fatigue (SF) during training, and during body weight reduction, was conducted on 25 male members of Tokai university Judo team. Results showed that the average energy intake per day was 2,848(range 2,566-3,028)kcal duringtraining and 1,990(1,259-2,322)kual during weight reduction in athletes of the light class, a difference of energy intake was 858 kcal per day. Athletes in the middle class were similar to the light class. The average of carbohydrate intake per kiologram per day was 6.0(range5.2-7.1)g druing training and 4.5(3.3-5.5)g during weight reduction in the light class. The average protein intake per kilogram per day was 1.6(1.2-1.8)g during training and 1.1(0.6-1.3)g during weight trduction. The percentage of decrease in B.W.(weight during training-weight during reduction/weight during training×100)was significantly(r=0.964,p<0.01)correlated with the amount of decrease in lean body mass (LBM, training period-reduction period), in the above 4% weight reduction subjects, although no differance was found in weight reduction in the below 4% subjects. Thus Judo athletes can be divided into two groups;"under 4% group"(U-G)and "over 4% group"(O-G), by weight reduction levels. The B.W.of U-G was reduced ca.2.2kg, and more body composition was lost in the body fat than in the LBM. The weight reduction in O-G was ca.4.1kg, and the loss in the LBM was remarkably greater than that in the body fat. The degree of decreased maximal anaerobic power in the O-G was greater than in U-G.Percentage of decrease in carbohydrate intake was greater in O-G (ave.-45%)than in the U-G(ave.-18%). The level of SF had no changes in the two groups, except for'dry mouth'in theO-G. These results indicate that the energy intake of Judo players during training, without body weight reduction, were less than their energy requirement. It is concluded that weight reductions of under 4% may be effective to prevent loss in LBM and physical capacity, and it also might be useful in the weight control of the Judo athletes.
東海大学の論文

<研究論文>柔道選手のトレーニング期および減量期における栄養補給が身体組成と最大無酸素パワーに及ぼす影響

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