Table 1.

Characteristics of the examined group

N = 20	Age [years]	Years of training [years]	Height [cm]	Weight [kg]	BMI [kg/m2]	Body fat [%]
$\overline{x}$	15.8	6.5	182.9	72.4	21.6	13.2
Min.	15.2	5	168	61.7	18.8	10.6
Max.	16.8	8	190	80.8	24.1	16.8
σ	0.7	0.8	5	5.6	1.3	1.8
V	4	13.6	2.7	7.7	6.1	13.3

N population, cm centimetre, kg kilogram, % percent, − arithmetic average, min. minimum value, max. maximum value, σ standard deviation, V coefficient of variation