Linked Life Data

3728050

Source:http://linkedlifedata.com/resource/pubmed/id/3728050

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1986-8-20
pubmed:abstractText
The effect of moderate hypoxemia upon postural sympathetic vasoconstrictor reflexes in skeletal muscle was studied in five healthy young students, aged 20-30 years. The vasoconstrictor response to head-up tilt was studied in brachio radial muscle kept at heart level and in the anterior tibial muscle. The local sympathetic veno-arteriolar axon reflex was studied in the anterior tibial muscle placed at heart level and lowered 30-50 cm below heart level. Muscle blood flow was measured by the local 133Xe wash-out technique. The measurements were carried out with the subject breathing atmospheric air and with the subject breathing 10-11% oxygen. No sign of orthostatic intolerance was seen during hypoxaemia as arterial blood pressure remained constant in the tilted position. Hypoxaemia did not alter the head-up tilt induced vasoconstriction in brachio-radial and anterior tibial muscles. The vasoconstriction elicited by the local veno-arteriolar reflex was slightly reduced during hypoxaemia. The results suggest that central orthostatic vasoconstrictor reflexes to muscle are essentially normal during moderate hypoxaemia, but local veno-arteriolar reflexes are slightly attenuated. This does not, however, significantly alter blood pressure control during head-up tilt.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0001-6772
pubmed:author
pubmed:issnType
Print
pubmed:volume
127
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
171-5
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
1986
pubmed:articleTitle
Lack of effect of moderate hypoxaemia on human postural reflexes to skeletal muscle.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.