At more than 2 000 m, altitude is ideal for reaping all the benefits of oxygenation. As air pressure diminishes, oxygen becomes rarer.
After a few days, the human body adapts by producing more red blood cells. The circulation of oxygen in the blood becomes more efficient.
Once you return to your normal altitude, your endurance levels are significantly improved. It’s not surprising that many great athletes train in high altitude before important competitions.
Fédération Française de Judo
The French Judo Federation was in Tignes from January 13th to 17th 2014 for a training session with national coaches !