The time from onset of severe hypoxia to loss of consciousness (TUC) varies among healthy
individuals. We hypothesized that this variance is due to difference in autonomic modulation …

Background Acute hypoxia tolerance varies substantially among healthy individuals. We
hypothesized that this variability results from a difference in autonomic (ANS) response to …

Iwasaki K, Ogawa Y, Aoki K, Saitoh T, Otsubo A, Shibata S. Cardiovascular regulation
response to hypoxia during stepwise decreases from 21% to 15% inhaled oxygen. Aviat …

To examine the baroreflex response in humans during and immediately after acute hypoxia
exposure, the cardiac baroreflex sensitivity (BRS) was studied using adaptation of RR …

Prabhakaran P, Tripathi KK. Autonomic modulations during 5 hours at 4574 m (15,000 ft)
breathing 40% oxygen. Aviat Space Environ Med 2011; 82: 863–70. Introduction: This study …

Studies of autonomic cardiac nervous system activity during acute exposure to hypobaric
hypoxia have suggested a depression of autonomic functions and a shift in the sympatho …

The primary purpose of this study was to assess the response of autonomic cardiac activity
and changes in the arterial oxygen saturation (SpO 2) during normobaric hypoxia and …

OBJECTIVE--To investigate the alterations in autonomic control of heart rate at high altitude
and to test the hypothesis that hypoxaemic stress during exposure to high altitude induces …

Primary effect of hypobaric hypoxia on the circulation is a direct vasodilatory effect on the
peripheral circulation, which is normally prevented by a sympathetic-induced …

The purpose of the present study was to investigate the degree to which peak heart rate is
reduced during exhaustive exercise in acute hypoxia. Five sea-level lowlanders performed …