Abstract:

Objective
 To examine the effects of weight loss on functional state of female judokas. Methods  Twelve female judokas belonging to Shanghai female judo team were tested at different periods(first,second,third phases and last phase) during weight loss a month before competition. The changes of physiological and biochemical indexes in different periods were observed and all the data  was  statistically analyzed. Results  Previous three phases, the  Fat%  in weight loss group was decreased compared with basic data (P<0.05); at the last phase, the lean body weight(LBW),back power and grip power were decreased compared with basic data and control group (P<0.05). Compared with basic data and control group,the hemoglobin (Hb) and RBC in weight loss group were decreased, then the hematocrit(Hct) was increased (P<0.05). Compared with basic data, the blood urea nitrogen(BUN)  in weight loss group  was decreased at the third phase (P<0.05). At the last phase, BUN and cortisol (C) in weight loss group  were increased, then testosterone(T) was decreased compared with basic data and control group (P<0.05).Conclusion Weight loss before competition has the effects on physiological and biochemical indexes, which lead to the decline of functional state and exercise ability of female judokas.

Key words: weight loss, female judokas, functional state