Document Detail


Relationship between spontaneous variations of muscle sympathetic activity and succeeding changes of blood pressure in man.
MedLine Citation:
PMID:  7169499     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Pulse-synchronous bursts of sympathetic vasoconstrictor impulses in peroneal muscle nerve fascicles were recorded together with intra-arterial blood pressure and ECG in 24 healthy subjects resting in the supine position. A statistical procedure similar to spike-triggered averaging was used to calculate mean changes of blood pressure and pulse interval following a burst of sympathetic impulses. In all subjects the result was a transient increase of blood pressure and a transient shortening of pulse interval with maxima occurring on the average 5.5 and 2.9s, respectively, after the burst. It is suggested that the same baroreceptor events that relate to a burst of sympathetic impulses in muscle nerves also change cardiac autonomic outflow to cause transient cardioacceleration. Presumably, the transient blood pressure increase following the burst is due to the combined effects of cardioacceleration and peripheral vasoconstriction.
Authors:
B G Wallin; C Nerhed
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of the autonomic nervous system     Volume:  6     ISSN:  0165-1838     ISO Abbreviation:  J. Auton. Nerv. Syst.     Publication Date:  1982 Nov 
Date Detail:
Created Date:  1983-06-10     Completed Date:  1983-06-10     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8003419     Medline TA:  J Auton Nerv Syst     Country:  NETHERLANDS    
Other Details:
Languages:  eng     Pagination:  293-302     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Adolescent
Adult
Blood Pressure*
Feedback
Female
Heart / innervation
Heart Rate*
Humans
Male
Middle Aged
Muscles / innervation*
Pressoreceptors / physiology
Reflex / physiology*
Vasoconstriction
Vasomotor System / physiology*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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