Table 1. Anthropometric and operational data of the WB-EMS training group (EMS) and the control group (CON). Age [years] Height [m] Weight [kg] Playing position S/M/D/G †  Mean playing time [min] EMS (n = 18) 16.28 ± 0.67 1.76 ± 0.04 67.25 ± 5.30 N: 6/4/7/1 %: 33/22/39/6 428.3 ± 214.9 CON (n = 12) 16.42 ± 0.90 1.79 ± 0.05 70.84 ± 6.08 N: 4/3/4/1 %: 33/25/33/8 450.8 ± 163.3 †  Distribution of playing positions in absolute numbers (N) and percentage (%), S – striker, M – midfielder, D – defender, G – goalkeeper.