It has been determined that females who began sports in the early ages (Uysal,1996) attained menarche later and menstruation disorders of these females increased. The age at which menarche began was significantly higher in the American female athletes than in her non-athletic counterpart. High school and college athletes attained menarche significantly later than non-athletes, and various groups of national and Olympic athletes attained menarche significantly latter than the high school or college athletes. On the other hand, age of menarche for Hungarian athletes has been found to be little affected by athletic competition (Fox et al., 1988). Although average menarche age of Belgium gymnasts is 15.6