Document Detail


Thermal and circulatory responses to repeated bouts of prolonged running.
MedLine Citation:
PMID:  491877     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The purpose of this study was to determine the thermal and circulatory responses of seven runners (X VO2max = 66 ml kg min) to two bouts of high intensity prolonged treadmill running (PTR) [each 80-min at 70% VO2max] spaced by a 90-min rest. After the transition to exercise, oxygen uptake (VO2) and percent change in plasma volume remained constant throughout each PTR. Rectal temperature (Tr) and heart rate (HR) increased while stroke volume (SV) and cardiac output (Q) decreased during the course of each PTR. The pattern of response for each variable was similar for both PTRs. However, Tr and HR were higher and SV and Q were lower during the second PTR when compared to the first of each respective time period.
Authors:
M N Sawka; R G Knowlton; J B Critz
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Medicine and science in sports     Volume:  11     ISSN:  0025-7990     ISO Abbreviation:  Med Sci Sports     Publication Date:  1979  
Date Detail:
Created Date:  1979-12-20     Completed Date:  1979-12-20     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  0203246     Medline TA:  Med Sci Sports     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  177-80     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Adult
Body Temperature Regulation*
Cardiac Output
Heart Rate
Hemodynamics*
Humans
Male
Oxygen Consumption
Physical Endurance*
Running*
Stroke Volume

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


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