Changes in prolactin and testosterone levels induced by acute physical exertion in young female athletes.

In order to establish the influence of acute atypical exercise on prolactin and testosterone levels in young female athletes the authors selected a group of 13 short distance runners who were subjected to exercise on a cycle ergometer. Hormone levels were measured before the test, just after the end of test, 30 and 90 minutes thereafter. Significant increase in testosterone concentration appeared immediately after the exercise and 90 minutes after completion of a test testosterone level returned to preexercise levels. Unlike the results of other authors statistically significant decrease in plasma prolactin concentration was found 90 minutes after the end of test.