Document Detail


Plasma free and sulfoconjugated catecholamine responses to varying exercise intensity.
MedLine Citation:
PMID:  3654425     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Plasma free catecholamines rise during exercise, but sulfoconjugated catecholamines reportedly fall. This study examined the relationship between exercise intensity and circulating levels of sulfoconjugated norepinephrine, epinephrine, and dopamine. Seven exercise-trained men biked at approximately 30, 60, and 90% of their individual maximal oxygen consumption (VO2max) for 8 min. The 90% VO2max period resulted in significantly increased plasma free norepinephrine (rest, 219 +/- 85; exercise, 2,738 +/- 1,149 pg/ml; P less than or equal to 0.01) and epinephrine (rest, 49 +/- 49; exercise, 555 +/- 516 pg/ml; P less than or equal to 0.05). These changes were accompanied by consistent increases in sulfoconjugated norepinephrine at both the 60% (rest, 852 +/- 292; exercise, 1,431 +/- 639; P less than or equal to 0.05) and 90% (rest, 859 +/- 311; exercise, 2,223 +/- 1,015; P less than or equal to 0.05) VO2max periods. Plasma sulfoconjugated epinephrine and dopamine displayed erratic changes at the three exercise intensities. These findings suggest that sulfoconjugated norepinephrine rises during high-intensity exercise.
Authors:
M S Sothmann; A B Gustafson; M Chandler
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of applied physiology (Bethesda, Md. : 1985)     Volume:  63     ISSN:  8750-7587     ISO Abbreviation:  J. Appl. Physiol.     Publication Date:  1987 Aug 
Date Detail:
Created Date:  1987-11-09     Completed Date:  1987-11-09     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:  654-8     Citation Subset:  IM    
Affiliation:
Department of Human Kinetics, School of Allied Health Professions, University of Wisconsin-Milwaukee 53201.
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MeSH Terms
Descriptor/Qualifier:
Adult
Catecholamines / blood*
Dopamine / analogs & derivatives,  blood*
Epinephrine / analogs & derivatives*,  blood
Humans
Male
Norepinephrine / analogs & derivatives*,  blood
Oxygen Consumption
Physical Exertion*
Chemical
Reg. No./Substance:
0/Catecholamines; 51-41-2/Norepinephrine; 51-43-4/Epinephrine; 77469-50-2/epinephrine sulfate; 81138-41-2/noradrenaline sulfate

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


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