Specialities of assessment of endurance capabilities in sport active children.

Maximal oxygen uptake (VO2 max) belongs to most important functional parameters of physical fitness testing and consideration of endurance capabilities. The value of VO2 max depends on age, gender, genetic disposition, body dimensions and physical fitness. Spiroergometric examination was done on cycle ergometer (ramp 25-35 W per minute) at vita maxima. One hundred and seventy children (129 boys and 41 girls) at the age of 8 to 17 were examined. The obtained results showed that absolute values of maximal oxygen uptake progressively rise during the course of childhood and gender differences between boys and girls started at the age 12-13 years.