Oral Contraception Use and Growth Hormone Levels in Female Athletes
New research in the Journal of Applied Physiology, Nutrition, and Metabolism, investigated the menstrual cycle and oral contraceptive use on growth hormone levels in sprinting female athletes. Researchers examined the impact of the menstrual cycle and oral contraceptive use on the growth hormone response to a sprinting activity on a treadmill. Researchers assessed 9 oral contraceptive users and 8 normally menstruating athletes, for 2 trials of treadmill sprints. Measures were taken examining growth hormone, pH, lactate, glucose, and progesterone levels.