Orthostasis and transcapillary fluid shifts
Hinghofer-Szalkay, H.G.
Journal of Gravitational Physiology a Journal of the International Society for Gravitational Physiology 2(1): P131-P133
1995
ISSN/ISBN: 1077-9248 PMID: 11538896 Document Number: 453399
Postural blood volume changes aggravate the regulation of arterial blood pressure and perfusion vis-a-vis the hydrostatic effects of orthostasis, ie, blood pooling below the hydrostatic indifferent points and reduced cardiac preload. Corresponding problems surface with extended passive standing, particularly in highly trained, dehydrated, or otherwise compromised subjects, or after long-lasting immobilization, as with space flight.