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Original Research
Published 12 October 2026
Breaking limits: rapid sea-to-summit ascent of Mount Everest (8,848 m) in 3 days 23 hours following normobaric-hypoxic pre-acclimatization and staged supplemental oxygen in a non-elite athlete
Irina Zelenkova
Frontiers in Physiology
doi 10.3389/fphys.2026.1873293