Running-based anaerobic sprint test (RAST)
MP
The RAST involved six 35-m maximal sprints with 10 s of recovery time between each trial. The players performed repeated sprints in alternating directions. A Smart Speed telemetric chronometer (Fusion, Australia) was used to determine each sprint interval. The test was performed on a grass turf pitch in outdoor conditions. Prior to the start of the test, the players underwent a warm-up for approximately 10 min conducted by the coaches, including a 5-min run at a self-selected pace, a few stretching exercises, and a few sprints of 10–15 m.The variables pertaining to the sprints were as follows: peak power (PP [W]), the highest value of the six sprints; minimum power (Pmin [W]), the lowest value; mean power (MP [W]), calculated from six measured values; relative power to body mass (RP [W/kg]); relative work (RW [J/kg]). The power output for each trial was determined using the following formula: Both tests in both groups were monitored by coach responsible for training program in FSP and the same researcher.