UltraRunning Magazine

High Altitude Training

eople who’ve lived at altitude for generations, like Tibetans and Andeans, show genetic adaptations to altitude to overcome the lower barometric pressure and corresponding lower oxygen density in the air. However, the main adaptations that occur are related to immediately reduced blood plasma volume (thus raising your hematocrit level since your hemoglobin per unit of blood is higher), then over days your body releases more natural EPO to increase red blood cell production to transport more oxygen. You’ll also find your maximal heart rate is lower, even once you’re fully adapted to altitude, plus your breathing will adapt after initially leaving

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