Comparison of bilateral isokinetic and isometric strength differences in elite young male and female taekwondo athletes.

Definition of strength imbalance between legs and muscles does not only play a decisive role for higher performance but also prevents sport injury. The purpose of this study was to determine bilateral differences on isokinetic and isometric strength of knee extensor and flexor muscles in male and female elite young taekwondo athletes. Ten male (age: 19.

Re-examination of the contribution of substrates to energy expenditure during high-intensity intermittent exercise in endurance athletes.

Background: It has been believed that the contribution of fat oxidation to total energy expenditure is becoming negligible at higher exercise intensities (about 85% VO). The aim of the present study was to examine the changes in substrate oxidation during high-intensity interval exercise in young adult men.

Methods: A total of 18 healthy well-trained (aged 19.