Influence of intensive exercise on insulin-like growth factor I, thyroid and steroid hormones in female gymnasts.

Long lasting intensive physical exercise leads to growth retardation. Short-limbed girls are selected for the training as gymnasts. In a preliminary study with 9 gymnasts a significant decrease of the IGF-I concentration was found after intensive 3-day exercise. This experiment was repeated with 16 girls (11.7 +/- 0.8 years old). The higher the initial DHEA… CONTINUE READING