ISSN:
1439-6327
Keywords:
Carotid baroreceptors
;
Central blood volume
;
Heart rate
;
Blood pressure
Source:
Springer Online Journal Archives 1860-2000
Topics:
Medicine
Notes:
Summary Altered baroreflex function may contribute to the cardiovascular changes associated with weightlessness. Since central blood volume (CBV) increases during simulated weightlessness, we have examined the possibility that acute changes in CBV may modify baroreceptor function. We used graded head-up tilt (HUT) and head-down tilt (HDT) to induce changes in CBV, and neck suction to stimulte carotid baroreceptors, in 6 subjects. The increase in pulse interval induced by a negative pressure of 8.2 kPa (62 mm Hg) imposed for 10 s while supine was compared with the increase while tilted for 8 min at ± 15
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00422735
Permalink
