 First Specific Aim: To study how the supplementation with 200 mg of ubiquinol in a short term 2 weeks study can influence the physical performance, resitance , muscle function and weakening: maintenance of normal muscle function, maintenance of endurance performance, increase in endurance performancecapacity, reduction in the rated perceived exertioneffort during exercise, increase in physical performance and maintenance of muscle mass and piscological variables that the sportsman suffers before and after the high intensity exercise. 