Figure 3. Optojump® methodology. Each sportsmen performed the test at day 0 (D0) and after 30 days (D30) of each period. The test included 3 steps: (i) a warm up phase of adaptation where they had to perform three single vertical Counter Movement Jumps (CMJ) separated by 1 minute rest, (ii) a 2 minutes of rest, and (iii) to perform a continuum Rebound Jumps (RJ) during 45 seconds, namely Total Rebound Jumps Power (EnRJ45), which represents the total physical performance. The Maximal Repetitive Rebound Jump Power (RJ110), which represents the explosive power, is the average energy (J) calculated from the 10 first RJ of this 45 seconds sequence; and the Maintained Rebound Jump Power (RJL5), which represents the fatigue, is the average energy (J) calculated from the last 5 RJ of this session.