Summary
This study examined physiological responses to high-altitude ascent and evaluated predictive factors for acute mountain sickness. Lower step-test performance and lack of previous exposure to altitudes exceeding 5000 metres emerged as significant predictors of moderate-to-severe AMS. The authors propose the Xtreme Everest Step-Test as a simple, reproducible field screening tool, though they acknowledge its predictive precision remains relatively limited.
UK applicability
These findings may inform pre-expedition medical screening for UK mountaineers and high-altitude expedition organisers, potentially identifying individuals at higher risk of AMS before departure. However, the test's modest predictive precision may limit its clinical utility as a standalone decision-making tool in UK practice.
Key measures
Odds ratios (OR) for AMS development; step-test performance; altitude exposure history; physiological parameters during ascent
Outcomes reported
The study investigated physiological responses during ascent to high altitude and identified predictors of acute mountain sickness (AMS) development. Key outcomes included identification of the Xtreme Everest Step-Test as a field-based predictive tool for moderate-to-severe AMS.
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