[Kinetics of oxygen consumption during running of supramaximal intensity in differently trained subjects].

The rate of increase of the oxygen consumption (VO2) at the onset of supramaximal exercise has been compared in trained and untrained subjects. The velocity constant of the VO2 increase up to its maximum (VO2 max) is proportional to the energy requirements of the exercise (WO2). For a given (WO2-VO2 max) value, the kinetics of VO2 is roughly the same in both types of subjects. In both cases, VO2 reaches on an average WO2 divided by 2 after 29 seconds whatever the WO2 level. The corresponding velocity constant is 1.4 min-1.