Androgen responses to sprint exercise in young men
F Derbré1, S Vincent, B Maitel
1Laboratory M2S (Movement, Sport and Health Sciences), UFR-APS, Rennes Cedex, France. frederic.derbre@hotmail.fr
International Journal of Sports Medicine
|February 23, 2010
Summary
Six months of sprint training significantly increased total testosterone (TT) in adolescent boys after exercise. This elevation in testosterone may be linked to increased adrenaline and lactate levels following intense sprints.
Area of Science:
- Exercise Physiology
- Endocrinology
- Sports Science
Background:
- Androgens and catecholamines play crucial roles in adolescent development and exercise response.
- Understanding the impact of training on hormonal responses is vital for optimizing athletic performance and health in young males.
Purpose of the Study:
- To examine the effects of a 6-month sprint training program on plasma androgen and catecholamine concentrations in adolescent boys.
- To investigate the acute hormonal responses to a 6-second sprint exercise before and after a training intervention.
Main Methods:
- A 6-month sprint training program was implemented with a training group (TG) and a control group (CG) of adolescent boys.
- A 6-second cycle ergometer sprint test was conducted pre- and post-training.
- Plasma total testosterone (TT), bioavailable testosterone (BT), and catecholamine (adrenaline and noradrenaline) concentrations were measured at rest, post-warm-up, immediately post-sprint, and during recovery (5 and 20 min).
Main Results:
- Sprint training led to a significant increase in plasma total testosterone (TT) concentrations at the end of the sprint and during recovery in the TG.
- No significant changes were observed in bioavailable testosterone (BT) levels.
- Post-sprint plasma TT concentrations showed positive correlations with plasma lactate (La) and adrenaline (A) levels.
Conclusions:
- Sprint training enhances plasma TT response to acute sprint exercise in adolescent boys.
- Elevated plasma adrenaline and lactate concentrations following sprint exercise may contribute to the increase in plasma TT.
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