Why can’t hypoxic training be done by simply being in a small closed room?

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If I understand correctly, hypoxic training (done by endurance athletes) works by forcing the body to adapt to low oxygen concentrations, i.e., improve oxygen metabolism. For this, athletes go to higher altitudes or use special machines (“hypoxicators”) that change the air they are breathing.

Could a similar effect be achieved simply by being in a (small enough) closed room for a long enough time, such that the oxygen concentration is as low as desired?

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Anonymous 0 Comments

You would need an air tight sealed room thas probably way more expensive than any other option. And then you still need to measure the CO2 levels and oxygen levels in that room to not kill the athlete.

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