Table 1. Values of arithmetic means (Mean) and standard deviations (SD) for racket velocity (m/s) and time of reaching the velocity (s) in all tests. Data are means (±SD). FH1 FH2 FH3 BH1 BH2 BH3 VRmax 13.13(1.14) 14.63(1.08) 14.69(1.45) 12.55(2.05) 14.09(1.32) 13.60(2.40) VRcont 13.03(1.19) 14.53(1.04) 14.55(1.46) 11.63(1.99) 13.02(1.42) 12.64(2.27) tVRmax 0.14(0.02) 0.16(0.03) 0.15(0.03) 0.14(0.03) 0.15(0.03) 0.13(0.03) tVRcont 0.13(0.02) 0.15(0.03) 0.15(0.03) 0.13(0.02) 0.14(0.03) 0.12(0.02) VRmax - maximal racket velocity; VRcont - velocity of the racket at the moment of contact with the ball; tVRmax - time of reaching maximal velocity; tVRcont – time in the moment of contact; FH1, FH2, FH3, BH1, BH2, BH3 - individual tests