Quantitative analysis of acid-base balance in show jumpers before and after exercise.
Abstract: 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.
Copyright 2000 Harcourt Publishers Ltd.
Publication Date: 2000-04-11 PubMed ID: 10756125DOI: 10.1053/rvsc.1999.0341Google Scholar: Lookup
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- Journal Article
- Research Support
- Non-U.S. Gov't
Summary
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The study examined the changes in blood acid-base balance in show jumping horses, before and after their performance. It found that while the blood pH didn’t change, the exercise caused changes in other blood parameters, providing a different perspective on acid-base balance in horses during exertion.
Research Methodology
- The study was conducted on 17 show jumpers, and venous blood was collected before and immediately after they completed a show jumping competition.
- Different blood parameters including carbon dioxide pressure, pH, hemoglobin, as well as plasma concentrations of various ions (sodium, chloride, potassium, ionized calcium), total proteins, albumin, lactate, and phosphorus were measured from the obtained samples.
- Calculations were made for bicarbonate levels, anion gap, and globulin concentration from the measured parameters.
- A ‘quantitative analysis’ of acid-base balance was carried out using three independent variables: carbon dioxide pressure, strong ion difference (SID), and total concentration of weak acids.
- Stewart’s equation was used to calculate plasma concentrations of hydrogen ion from these variables.
Results and Findings
- No significant changes were observed in blood pH after the show jumping competition.
- A significant increase was recorded in lactate, sodium, potassium, hemoglobin, total proteins, albumin, globulin, and anion gap after exercise.
- A decrease was observed in bicarbonate, chloride, and calcium levels post exercise.
- The study found a significant correlation between measured and calculated hydrogen ion concentrations both before and after exercise. However, individual hydrogen ion values were not accurately predicted from Stewart’s equation.
Conclusion
- Although the blood pH remained unchanged, significant modifications were found in the acid-base balance of horses post competition, indicating changes in other blood parameters due to exercise.
- Quantitative analysis of acid-base balance unveiled insight into the physiological adaptations of show jumping horses during exertion, proving its adequacy in determining acid-base status in show jumpers before and after exercise.
Cite This Article
APA
Aguilera-Tejero E, Estepa JC, López I, Bas S, Mayer-Valor R, Rodríguez M.
(2000).
Quantitative analysis of acid-base balance in show jumpers before and after exercise.
Res Vet Sci, 68(2), 103-108.
https://doi.org/10.1053/rvsc.1999.0341 Publication
Researcher Affiliations
- Departamento de Medicina y Cirugía Animal, Universidad de Córdoba, Campus Universitario de Rabanales, Ctra. Madrid-Cádiz km. 396, Córdoba, 14014, Spain.
MeSH Terms
- Acid-Base Equilibrium / physiology
- Animals
- Calcium / blood
- Horses / physiology
- Lactic Acid / blood
- Physical Conditioning, Animal / physiology
- Potassium / blood
- Protons
- Sodium / blood
- Sports
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