Document Detail

Quantitative analysis of acid-base balance in show jumpers before and after exercise.
MedLine Citation:
PMID:  10756125     Owner:  NLM     Status:  MEDLINE    
The acid-base status of venous blood was studied in 17 show jumpers before and after exercise using both a traditional and a quantitative approach. Partial pressure of carbon dioxide (PCO(2)), pH, haemoglobin, and plasma concentrations of sodium (Na(+)), chloride (Cl(-)), potasium (K(+)), ionized calcium (Ca(2+)), total proteins, albumin, lactate and phosphorus were measured in jugular venous blood samples obtained before and immediately after finishing a show jumping competition. Bicarbonate, anion gap and globulin concentration were calculated from the measured parameters. 'Quantitative analysis' of acid-base balance was performed utilising values for three independent variables: PCO(2), strong ion difference [SID = (Na(+)+ K(+)+ Ca(2+)) - (Cl(-)+ Lact)] and total concentration of weak acids [A(T)= Alb (1 paragraph sign23 pH - 6 paragraph sign31) + Pi (0 paragraph sign309 pH - 0 paragraph sign469) 10/30 paragraph sign97]; plasma concentrations of hydrogen ion ([H(+)]) were also calculated from these variables using Stewart's equation. No significant changes in blood pH were detected after the show jumping competition. Exercise resulted in a significant increase in lactate, Na(+), K(+), haemoglobin, total proteins, albumin, globulin and anion gap, and a decrease in bicarbonate, Cl(-)and Ca(2+). PCO(2)decreased after exercise while SID and A(T)increased. A significant correlation between measured and calculated [H(+)] was found both before and after exercise. However, individual [H(+)] values were not accurately predicted from Stewart's equation. In conclusion, even though pH did not change, significant modifications in the acid-base balance of horses have been found after a show jumping competition. In addition, quantitative analysis has been shown to provide an adequate interpretation of acid-base status in show jumpers before and after exercise.
E Aguilera-Tejero; J C Estepa; I López; S Bas; R Mayer-Valor; M Rodríguez
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Research in veterinary science     Volume:  68     ISSN:  0034-5288     ISO Abbreviation:  Res. Vet. Sci.     Publication Date:  2000 Apr 
Date Detail:
Created Date:  2000-06-13     Completed Date:  2000-06-13     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0401300     Medline TA:  Res Vet Sci     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  103-8     Citation Subset:  IM    
Copyright Information:
Copyright 2000 Harcourt Publishers Ltd.
Departamento de Medicina y Cirugía Animal, Universidad de Córdoba, Campus Universitario de Rabanales, Ctra. Madrid-Cádiz km. 396, Córdoba, 14014, Spain.
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MeSH Terms
Acid-Base Equilibrium / physiology*
Calcium / blood
Horses / physiology*
Lactic Acid / blood
Physical Conditioning, Animal / physiology*
Potassium / blood
Sodium / blood
Reg. No./Substance:
0/Protons; 50-21-5/Lactic Acid; 7440-09-7/Potassium; 7440-23-5/Sodium; 7440-70-2/Calcium

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