High altitude and oxygen saturation

3 important questions on High altitude and oxygen saturation

What causes high altitude?

Low oxygen saturation levels or desaturation. Because of low atmospheric pressure at high altitude.
Rapid changes in saturation above 2100m above sea level.

What happens to the body when an athlete follows a live high, train low training schedule?

The mass of haemoglobin and the red blood cell volume will increase

Response of erythropoietin (EPO)

Long term.
It controls red blood cell production. Primarily in kidneys.
Stimulus for EPO synthesis and release is hypoxia (low oxygen levens in the tissue). It stimulates the synthesis of red blood cells, EPO puts more hemoglobin into the circulation to carry oxygen.

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