Evidence of the Exercise Hypogonadal Male Condition at the 2011 Kona Ironman World Championships Earlier research has shown that high volumes of aerobic trainings lead to a reduction in basal testosterone concentrations in men. These previous studies were mainly carried out at leisure runners and identified a reduced testosterone, but no concentrations that were low enough to be considered pathological. Therefore, it was the aim of this study to examine the basal concentrations of testosterone and cortisol in elite triathlets and to evaluate the influence of a World Cup race on the acute reactions of these hormones.22 men (age: 40.6 ± 11.5 years;Size: 179 ± 6 cm; Weight: 77.0 ± 7.0 kg) participated in the Ironman World Championships 2011 served as subjects. Calm blood samples were taken 2-4 days before (BL) as well as immediately (IP), 1 day (D1) and 2 days (D2) after the event and later analyzed on total testosterone and cortisol concentrations. With BL had a normal testosterone concentration of the 22 subjects, while 9 men fell into a “gray zone” and 4 other men showed concentrations that indicate a defect. Testosterone was significantly lower than BL at D1 and D2.Cortisol differed significantly from the starting value at IP. There were significant correlations between time and age as well as output value testosterone and cortisol.
Elite ultra-endurance athletes can not only have reduced testosterone levels, but sometimes clinically low concentrations that can indicate an androgen deficiency. The whole work can be found under.https://pubmed.ncbi.nlm.nih.gov/29952670/