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Updated: Jul 10, 2026

A Model to Simulate Clinically Relevant Hypoxia in Humans

A Model to Simulate Clinically Relevant Hypoxia in Humans

Published on: December 22, 2016

Preacclimatization in simulated altitudes.

M Burtscher¹, E Brandstätter, H Gatterer

¹Department of Sport Science, Medical Section, University of Innsbruck, Fürstenweg 185, 6020 Innsbruck, Austria. martin.burtscher@uibk.ac.at

Sleep & Breathing = Schlaf & Atmung

|November 22, 2007

Summary

Preacclimatization using simulated high altitude may help reduce mountain sickness and improve exercise performance. More research is needed, but short daily exposures show promise for acclimatization.

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Last Updated: Jul 10, 2026

A Model to Simulate Clinically Relevant Hypoxia in Humans

A Model to Simulate Clinically Relevant Hypoxia in Humans

Published on: December 22, 2016

Area of Science:

Physiology
Altitude Medicine

Background:

High altitude exposure causes mountain illnesses and reduces exercise capacity.
Effective acclimatization is crucial for individuals at high altitudes.

Observation:

A review of studies and preliminary lab data examined simulated altitude preacclimatization.
Limited studies exist on preacclimatization's effectiveness for reducing acute mountain sickness (AMS) and performance loss.

Findings:

Daily exposures (1-4 hours for 1-5 weeks) to simulated 4,000m altitude may initiate adaptations reducing AMS.
For shorter protocols, rest during hypoxia appears as effective as exercise.
Exercise may enhance performance in longer preacclimatization protocols.

Implications:

Simulated altitude preacclimatization shows potential for mitigating high-altitude challenges.
Further research is required to establish firm conclusions and optimize protocols.
This approach could benefit mountaineers, trekkers, and athletes preparing for high-altitude environments.