Table 4. Characteristics of the Polish elite athletes and controls used in the study.

Sport discipline	N [%]	The specifics of competition		Male N [%]			Mean Age ± SD
		Power N [%]	Endurance N [%]	All	Power N [%]	Endurance N [%]	All	Power N [%]	Endurance N [%]
Athletics	100 [56.8]	70 [70.0]	30 [30.0]	61 [61.0]	42 [60.0]	19 [63.3]	24.8 ±5.3	23.8±4.9	27.2±5.3
Speed skating	21 [11.9]	7 [33.3]	14 [66.7]	17 [81.0]	6 [85.7]	11 [78.6]	21.5 ± 4.1	19.3±1.4	22.6±4.6
Swimming	28 [15.9]	17 [60.7]	11 [39.3]	16 [57.1]	9 [52.9]	7 [63.6]	22.0 ± 5.0	21.4±3.8	23±6.5
Rowing	27 [15.4]	0 [0.0]	27 [100.0]	18 [66.7]	-	18 [66.7]	25.4 ± 4.2	-	25.4±4.2
Total athletes	176 [100]	94 [53.4]	82 [46.6]	112 [63.6]	57 [60.6]	55 [67.1]	24.1 ± 5.1	23.0±4.8	25.2±5.3
Controls	128 [100]	-	-	81 [63.3]	-	-	24.2 ± 5.0	-	-