Variability and cardiovascular homeostasis
Hughson, R.L.; Gharib, C.
Journal of Gravitational Physiology a Journal of the International Society for Gravitational Physiology 2(1): P123-P126
1995
ISSN/ISBN: 1077-9248 PMID: 11538893 Document Number: 449495
The inability to maintain the upright posture due to a failure in the arterial blood pressure regulatory mechanisms on return from space travel or after a period of head down tilt bed rest (HDBR) is the ultimate sign of cardiovascular deconditioning. Yet, the final response of syncope is potentially heralded by a series of precursor events that can be quantified and analyzed in new, more insightful ways to attempt to understand the integrative nature of autonomic control of the cardiovascular system.