研究目的:一般认为从女运动员初潮年龄的平均值上看,较普通女性迟。但是如果详细地观察的话,则初潮年龄推迟的程度因运动项目而明显不同。所以一般认为,初潮推迟不仅仅是由于运动负荷的原因,而且也与运动的性质和开始训练的年龄等种种因素有关。另外,似乎参加比赛及运动训练的程度等因素也使月经周期发生变化。由这些情况 The purpose of the study: Generally considered from the average age of female athletes of menarche point of view, later than the average woman. However, the degree of postponement of the age of menarche, if observed in detail, is significantly different depending on the sport. It is generally believed that the menarche postponement not only because of exercise load, but also with the nature of the movement and the age of the beginning of training and other factors. In addition, it seems that the level of participation in competitions and sports training and other factors also make the menstrual cycle change. By these circumstances