Participants
injuries
A priori power analysis was calculated using the G*Power software (Version 3.1.9.4, University of Kiel, Kiel, Germany) using the F test family (ANOVA: repeated measures, within-between interaction) to determine the required sample size with α set at 0.05 and power (1-β) set at 0.80. The effect size f calculated was at 0.252. The analysis revealed that a total sample size of 40 subjects would be sufficient to find significant differences with an actual power of 0.81. Fifty-two taekwondo athletes (males = 26; females = 26) volunteered to participate in the present study. They were divided into the elite (i.e., competing at the international level) and sub-elite (i.e., competing at regional and national levels), all participating regularly in taekwondo training and not suffering from injuries or medical restrictions during the whole period of experimentation. The characteristics of the participants are presented in Table Participants characteristics.To minimize the effect of the menstrual cycle on the study outcomes, female athletes were tested during their early follicular phase