| The author holds that current researches on physiological basis of volleyball are not adequate enough to evaluate the intensity and effect of volleyball sports. The author organized four volleyball match experiments, in which 12(6 males and 6 females) are Wuhu juvenile volleyball players, and 12(6 males and 6 females) are students majoring in volleyball from college of RE, and tracked these participants in soft-volleyball matches to measure the amount of Alb and B2-MG in their last urine before and after each match by means of Radioimmunoassay. The statistics and analysis indicates that the amount of Alb and B2-MG is closely related to the player's training level and their in tensity of exercise, and that it is the law that the amount in creases with the increase of intensity of exercise. The research also indicates that at the level of juvenile volleyball matches, the two indices of Alb and B2-MG don't change remarkably before and after the match, which can demonstrate that matches at nuvenile level should be in medium or normal intensity scope. Through the research, the author points out that the two indices of Alb and B2-MG are effective in evaluating and monitoring the training and match of juvenile volleyball players.
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