Document Detail


Cardiovascular, respiratory, and metabolic responses to upper body exercise.
MedLine Citation:
PMID:  2691823     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Many studies have suggested that arm exercise, particularly in the supine position or with arms elevated, is more stressful than leg exercise. Arm exercise at a given workload is typified by cardiac output and oxygen consumption values slightly higher and heart rate, blood pressure, ventilatory and blood lactic acid responses that are significantly higher than those observed during leg exercise. Part of the increased physiological stress during arm exercise may be due to sluggish kinetics of oxidative metabolism and increased glycolysis leading to lactic acid production and accumulation in blood. This physiological state would lead to a cardiovascular and respiratory pressor effect. The limitations of VO2 adjustment in the arms are not due to cardiac or muscle blood flow limitations as these are quick to adjust and reach higher absolute levels than during leg exercise. Specific arm training increases the VO2 adjustment, and the physiological values in these subjects during arm exercise are similar to those observed during leg exercise.
Authors:
D R Pendergast
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Publication Detail:
Type:  Journal Article; Review    
Journal Detail:
Title:  Medicine and science in sports and exercise     Volume:  21     ISSN:  0195-9131     ISO Abbreviation:  Med Sci Sports Exerc     Publication Date:  1989 Oct 
Date Detail:
Created Date:  1990-02-22     Completed Date:  1990-02-22     Revised Date:  2005-11-16    
Medline Journal Info:
Nlm Unique ID:  8005433     Medline TA:  Med Sci Sports Exerc     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  S121-5     Citation Subset:  IM; S    
Affiliation:
Department of Physiology, State University of New York, Buffalo 14214.
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MeSH Terms
Descriptor/Qualifier:
Arm / physiology*
Cardiac Output
Cardiovascular System / metabolism*
Exercise / physiology*
Humans
Oxygen Consumption
Respiration*

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


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