Power-speed-endurance Profile (Cycling/Rowing) : Optimize Performance of the French Athletes at the Paris Olympics 2024

Subjects will be subjected to mild hypoxia simulating an altitude of 1750 m (normobaric hypoxia). Hypoxia decreases oxygen supply to tissue and limit exercise capacity. For this, the subjects will inhale a gas mixture depleted in oxygen (enriched in nitrogen). The barometric pressure at 1500 m being 621 mmHg, PIO2 at this altitude (PIO2 = (621 - 47) x 21%) is 120.5 mmHg. For sea level altitude where the barometric pressure is 760 mmHg, the hypoxic gas mixture should contain (x = 120.5 / (760 - 47)) 16.8% O2. Thus, by inhaling a gas mixture that is oxygen-depleted from 21 to 16.8%, subjects (will simulate the altitude of 1750 and) will experience the equivalent of a 20% reduction in oxygen supply.