Rossiiskii fiziologicheskii zhurnal imeni I.M. Sechenova 2006-Aug
[Cardiorespiratory responses of animals to passive orthostasis after intermittent hypoxia during head-down tilt].
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Abstrakt
Cardiorespiratory responses induced by upright tilt before and after intermittent hypoxia during head-down tilt, were investigated in rabbits. Arterial blood pressure, heart rate, central venous pressure, transmural filling pressure of the heart (calculated as the product of esophageal and central venous pressure), breathing frequency, esophageal pressure were measured in supine (baseline), head-down and upright posture. Our results indicate a reduction in orthostatic responses in cardiovascular system after intermittent hypoxia.