CARDIORESPIRATORY SYSTEM PERFORMANCE IN OF 9-11 YEARS OLD SKI RACERS MID OB REGION NATIVES
The cardiorespiratory system in 9-11 years old ski racers and children not practicing sports has been studied. It has been found that the young athletes have more developed respiratory muscles, and its mac performance is higher. The higher hemodynamic rates in the ski racers point to less efficient heart operation, and reduced adaptation.