旨在为过度训练提供训练量制定和训练效果评价的理论依据 .通过中外中长跑运动员经常出现的过度训练表象及生理机能变化的分析 ,提出了防止过度训练的原则与措施 The purpose of this paper is to provide the theoretical basis for the training of over-training and the evaluation of the training effect.On the basis of analyzing the over-training appearance and the changes of the physiology function that the Chinese and foreign middle and long-distance runners often appear, the principles and measures to prevent over training