Linked Life Data

3689272

Source:http://linkedlifedata.com/resource/pubmed/id/3689272

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
11
pubmed:dateCreated
1988-1-7
pubmed:abstractText
A device was constructed which allowed subatomospheric pressures of up to -50 mm Hg to be applied to the neck, or to the head plus neck, of volunteer subjects riding on the USAFSAM centrifuge. Breathing pressures were always atmospheric. The G tolerance was measured during gradual (0.1 G.s-1) and rapid onset (1.0 G.s-1) runs and heart rate was monitored. Neck suction decreased tolerance to an extent explicable by carotid sinus activation (about -0.8 G at -50 mm Hg), while combined head and neck suction of -25 mm Hg increased tolerance to an extent greater than predicted from pressure effects on the eye and carotid sinus. Neck suction of -50 mm Hg induced less bradycardia when applied at +3 Gz than under 1-G conditions. These results were discussed in relation to intraocular tension, baroreceptor responsiveness, and jugular venous siphon effect.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0095-6562
pubmed:author
pubmed:issnType
Print
pubmed:volume
58
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1075-81
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1987
pubmed:articleTitle
The effect of head and neck suction on G tolerance.
pubmed:affiliation
USAF School of Aerospace Medicine, Crew Technology Division, Brooks Air Force Base, Texas.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, Non-P.H.S., Research Support, Non-U.S. Gov't