Document Detail

Plasma beta-endorphin response of thoroughbred horses to maximal exercise.
MedLine Citation:
PMID:  7871689     Owner:  NLM     Status:  MEDLINE    
Ten horses underwent a standardised strenuous treadmill exercise test, before, during and after which measurements were made of plasma beta-endorphin and cortisol concentrations, blood lactate, glucose, haemoglobin and pH, the activities of creatine kinase, lactate dehydrogenase and aspartate amino-transferase, and heart rate, oxygen uptake and expired minute volume. The correlations between the exercise-induced response of beta-endorphin and the changes observed in the other physiological measurements were examined. There was a large variation in the beta-endorphin response of the horses to exercise. The increase in beta-endorphin was correlated significantly and inversely with the treadmill velocity at which maximal oxygen uptake was reached. It was also significantly and directly correlated with the heart rate during recovery, the increase in plasma lactate concentration and the change in blood pH, indicating that the exercise-induced increase in beta-endorphin concentration was smaller in horses with a higher aerobic capacity.
T Art; P Franchimont; P Lekeux
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  The Veterinary record     Volume:  135     ISSN:  0042-4900     ISO Abbreviation:  Vet. Rec.     Publication Date:  1994 Nov 
Date Detail:
Created Date:  1995-03-27     Completed Date:  1995-03-27     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  0031164     Medline TA:  Vet Rec     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  499-503     Citation Subset:  IM    
Equine Sports Medicine Unit, Faculty of Veterinary Medicine, University of Liege, Belgium.
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MeSH Terms
Body Temperature
Carbon Dioxide / physiology
Exercise Test / veterinary
Heart Rate
Horses / blood*,  physiology
Oxygen Consumption / physiology
Physical Conditioning, Animal
Physical Exertion / physiology*
Radioimmunoassay / veterinary
Respiratory Function Tests / veterinary
beta-Endorphin / blood*
Reg. No./Substance:
124-38-9/Carbon Dioxide; 60617-12-1/beta-Endorphin

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

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