Changes in aerobic capacity to prepubertal children in sports 12-month training period

This study was long-term and lasted for one year. The study aims to determine whether there is a change in aerobic capacity indicators for prepubertal children when playing football.

There were two groups of subjects: children of prepubertal age who trained in football and those who did not attend football. There were 16 participants in the FG (football-trained group) and 15 in the CG (control group) who attended no football lessons. An incremental treadmill test was performed three times with a half-year break to determine the following peak variables: oxygen uptake, stroke volume, cardiac output, and minute ventilation.

After one year of training, the VO2 peak at FG increased from 51.81 ± 6.55 ml/kg/min. to 53.11 ± 5.27 ml/kg/min. (p = 0.0412), stroke volume at FG increased from 41.3 ml/min to 46.4 ml/min. (p = 0.0012), cardiac output (Q) also increased from 8.15 l/min to 9.44 l/min. At stage II and 10.2 l/min at stage III (p = 0.0143) at FG.

After one year of football training at FG-related VO2, RR (-respiratory rate), and Q also shifted, SV (-stroke volume) also increased significantly, while at UG, results were the opposite- only a few parameters, such as HR, increased significantly, while the others did not.