Document Detail


Influence of endurance exercise training status and gender on postexercise hypotension.
MedLine Citation:
PMID:  12015349     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
In sedentary individuals, postexercise hypotension after a single bout of aerobic exercise is due to a peripheral vasodilation. Endurance exercise training has the potential to modify this response and perhaps reduce the degree of postexercise hypotension. We tested the hypothesis that endurance exercise-trained men and women would have blunted postexercise hypotension compared with sedentary subjects but that the mechanism of hypotension would be similar (i.e., vasodilation). We studied 16 endurance-trained and 16 sedentary men and women. Arterial pressure, cardiac output, and total peripheral resistance were determined before and after a single 60-min bout of exercise at 60% peak oxygen consumption. All groups exhibited a similar degree of postexercise hypotension (approximately 4-5 mmHg; P < 0.05 vs. preexercise). In sedentary men and women, hypotension was the result of vasodilation (Deltaresistance: -8.9 +/- 2.2%). In endurance-trained women, hypotension was also the result of vasodilation (-8.1 +/- 4.1%). However, in endurance-trained men, hypotension was the result of a reduced cardiac output (-5.2 +/- 2.4%; P < 0.05 vs. all others) and vasodilation was absent (-0.7 +/- 3.3%; P < 0.05 vs. all others). Thus we conclude the magnitude of postexercise hypotension is similar in sedentary and endurance-trained men and women but that endurance-trained men and women achieve this fall in pressure via different mechanisms.
Authors:
Annette N Senitko; Nisha Charkoudian; John R Halliwill
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Journal of applied physiology (Bethesda, Md. : 1985)     Volume:  92     ISSN:  8750-7587     ISO Abbreviation:  J. Appl. Physiol.     Publication Date:  2002 Jun 
Date Detail:
Created Date:  2002-05-16     Completed Date:  2002-10-23     Revised Date:  2013-09-26    
Medline Journal Info:
Nlm Unique ID:  8502536     Medline TA:  J Appl Physiol (1985)     Country:  United States    
Other Details:
Languages:  eng     Pagination:  2368-74     Citation Subset:  IM    
Affiliation:
Department of Anesthesiology and General Clinical Research Center, Mayo Clinic and Foundation, Rochester, Minnesota 55905, USA.
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MeSH Terms
Descriptor/Qualifier:
Adult
Cardiac Output
Exercise / physiology*
Female
Humans
Hypotension / etiology*,  physiopathology*
Male
Physical Education and Training*
Physical Endurance*
Reference Values
Sex Characteristics*
Vasodilation
Grant Support
ID/Acronym/Agency:
AR-08610/AR/NIAMS NIH HHS; RR-00585/RR/NCRR NIH HHS

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


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