Why the study?
High-altitude hypobaric hypoxia triggers complex cardiovascular, respiratory, and endocrine adaptive responses, prompting an evaluation of circulatory adaptive mechanisms during a Himalayan expedition.
Does high altitude exposure alter arterial distensibility and hemodynamics in European lowlanders compared to Nepalese highlanders?
Population
8 lowlander European researchers and 11 highlander Nepalese porters
Comparison
European lowlanders vs Nepalese highlanders across altitudes from 1350 to 5050 m above sea level
Design
Observational expedition study
Authors
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High-altitude ascent was associated with arterial stiffening in lowlanders matching highlander levels; leaves open adaptation mechanisms and CV outcomes.
Does high altitude exposure alter arterial distensibility and hemodynamics in European lowlanders compared to Nepalese highlanders?
High altitude exposure induces progressive arterial stiffening in European lowlanders, which may explain observed increases in systolic and pulse pressure, though hemodynamics at high altitude do not differ significantly from adapted Nepalese highlanders.
Salvi et al. (2022) studied this question.
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