Aerobic capacity of 8-9 years old football players

The object – aerobic capacity of 8-9 years old football players. The hypothesis is that football training increase aerobic capacity of 8-9 years old football players. The aim: to evaluate aerobic capacity of 8-9 years old football players. Tasks: 1. To evaluate and compare aerobic capacity of 8-9 years old football players; 2. To investigate breathing function components of 8 - 9 years old; 3. To identify muscle oxygenation changes during incrementaly increasing speed test and recovery; 4. To investigate corelations between breathing function, muscle oxtgenation, anthropomethry and aerobic capacity components, during incrementaly increasing speed test. Methods: Anthropomethry; Spirometry; Incrementaly increasing speed test; Muscle oxygenation evaluating, mathematical statistics. Conclusions: 1. Components of breathing function did not differ, for 8-9 years old football players. 2. Aerobic capacity components of 8-9 years old football players aren‘t different. 3. Muscle oxygenation of 8-9 years old also did not differ, durind incrementaly increasing speed test and recovery. 4. Aerobic capacity components corelates with breathing function indicators (MVV, PEF). Practical recomendations: it is recommended to test aerobic capacity on a regular basis, to adjust and individually apply the loads to each player based on the results obtained