【摘要】 运动员竞赛期间受神经系统的活动方式、活动强度、各种神中枢之间的相互协调程度的影响而形成的各种赛前心理状态，会使人体机能水平和技术水平提高或降低，从而影响运动成绩。本文利用试卷问答法、人体糖酵解供系统的代谢产物（血乳酸）的测定，分析赛前心理状态与赛后血乳酸值的对应关系，并讨论了赛前心理状态影响比赛成绩的生理机制。更多还原

【Abstract】 Neuro system activities, training intensity and cooperation among nerve centers etc. form precompetition psychological status, which affects swimmers’ performance by changing physical and technical levels. By making investigation and measuring blood lactate acid (BLA),this paper studied the relationship between psychologlcai status before competition and BLA after competition of elite swimmers, and discussed how psychological status affected performanee of swimmers.更多还原