[Modifications of some cardiorespiratory parameters under a controlled work-load in a group of football players, winners of Italian championship football].

The modifications of some cardiorespiratory and metabolic parameters in 18 football players under controlled work-load has been investigated. The results obtained show that by increasing work-load VO2, HR, VE, RR, TV and VA also linearly increase; FiO2-FeO2 steeply increases at he reduced work-load (50 Watt) while at the higher loads (from 100 to 200 Watt) grows with less steep slope. The oxygen consumption evaluated at 200 Watt shows a figure of 50 ml O2/min/Kg, whereas the maxim calculated VO2 goes up to 75,56 ml/min/Kg body weight.