12-week treadmill exercise program elicits lower energy availability without changes in serum testosterone in male rats

ConclusionsDespite lower energy availability, exercise-induced changes in sex hormones may not occur in training programs ≤ 12 weeks. Lower voluntary energy intake observed in exercise groups despite greater energy expenditure may indicate that lower energy availability in endurance-trained individuals may be inadvertent.
Source: Sport Sciences for Health - Category: Sports Medicine Source Type: research