Effect of High Altitude Clinical Trial
Official title:
Effect of High Altitude Exposure, Acclimatization and Re-exposure on Postural Control in Lowlanders
Prospective interventional trial in lowlanders evaluating the effect of acute exposure, acclimatization and re-exposure to high altitude on postural control
Baseline measurements including the assessment of the center of pressure during 30s, the
cerebral oxygen saturation and a sharpened Romberg test will be performed in Santiago de
Chile, 520 m, over the course of 3 days. Participants will then travel by commercial airline
(5 h flight) and by bus (3 h ride) to the base camp of the Atacama Large
Millimeter/Submillimeter Array (ALMA) telescope station located at 2900 m near San Pedro de
Atacama, northern Chile. Participants will stay there for the next 8 nights and they will be
spend the days (6-8 h daily) at the telescope station at 5050 m while undergoing testing as
described above at the first and the last day at 5050m. Daily transports from 2900 to 5050 m
will be by car (1 h ride, one way). After the first 8 day altitude sojourn participants will
return to the Santiago area (520 m) for a 6 day recovery period.
A second altitude sojourn with an identical schedule as the one described above and a final
low altitude stay of 3 days will follow.
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