MEDEX 2015: Prophylactic Effects of Positive Expiratory Pressure in Trekkers at Very High Altitude.

Front Physiol · 2021 · PMC8490760 · PMID 34621182

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In the present study, the day after reaching >5,000 m, the mean increase of ∼9% in SpO 2 with PEP 10 breathing was highly significant and exceeds the effect we have previously reported at lower altitude (+7% SpO 2 with PEP 10 breathing after 2–3 days at 4,350 m) ( Nespoulet et al., 2013 ).

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