Why the study?
Does early exposure to simulated altitude alter body temperature and autonomic responses in individuals developing acute mountain sickness?
Population
51 men and women undergoing 94 exposures to reduced barometric pressure (423 mmHg = 16,000 ft = 4850 m)
Comparison
Exposure to simulated altitude (reduced P 423… vs Subjects with lowest AMS scores compared to…
Follow-up
8 to 12 hours
Authors
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Transient temperature drop may flag early AMS risk; hypothesis-generating for autonomic monitoring before practice change.
Does early exposure to simulated altitude alter body temperature and autonomic responses in individuals developing acute mountain sickness?
Early acute mountain sickness is associated with a transient decline in body temperature and elevated sympathetic activity, suggesting increased hypoxic vasodilation.
Loeppky et al. (2003) studied this question.
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