Valuation of the jumping tests CMJ, SJ and 15 s on the different artificial turf systems.

System 1: Compacted gravel sub-base without elastic layer; System 2: Compacted gravel sub-base with elastic layer; System 3: Asphalt sub-base without elastic layer; System 4: Asphalt sub-base with elastic layer.CMJ = Counter Movement Jump; SJ = Squat Jump; 15 s Test = Fifteen seconds maximal jump test.Data are presented as mean (SD) in 18 soccer players.*Significant differences between pre- and post-RSA (pa,b,c,dSignificant differences with the indicated system (pValuation of the jumping tests CMJ, SJ and 15 s on the different artificial turf systems.