Document Detail

Plasma free and sulfoconjugated catecholamine responses to varying exercise intensity.
MedLine Citation:
PMID:  3654425     Owner:  NLM     Status:  MEDLINE    
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.
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    
Department of Human Kinetics, School of Allied Health Professions, University of Wisconsin-Milwaukee 53201.
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MeSH Terms
Catecholamines / blood*
Dopamine / analogs & derivatives,  blood*
Epinephrine / analogs & derivatives*,  blood
Norepinephrine / analogs & derivatives*,  blood
Oxygen Consumption
Physical Exertion*
Reg. No./Substance:
0/Catecholamines; 51-41-2/Norepinephrine; 51-43-4/Epinephrine; 77469-50-2/epinephrine sulfate; 81138-41-2/noradrenaline sulfate

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