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Home / Equine Research Bank / Vet Anim Sci / Blood lactate concentrations and heart rates of Colombian Pa...
Veterinary and animal science2021; 13; 100185; doi: 10.1016/j.vas.2021.100185

Blood lactate concentrations and heart rates of Colombian Paso horses during a field exercise test.

Abstract: Information on performance indices in Paso horses is scarce. Field exercise tests are necessary to recreate the exertion that occurs during training and competition. To describe blood lactate concentrations and heart rates of untrained Colombian Paso horses (CPHs) in response to a field exercise test. A 30-minutes-long standardized field exercise test was carried out on 11 untrained adult CPHs of both sexes. Blood lactate concentration (BLConc) and heart rate (HR) were measured before, during each step of the test, and at recovery. The BLConc and HR were used to calculate the HR at which a BLConc of 4 mmol/L or anaerobic threshold (HRL) was reached The HR during the field exercise test increased according to the protocol used. The BLConc during the test was variable and, despite having been increasing like the HR, the distribution of the values in each step of the test was remarkably dispersed. The mean blood lactate clearance (BLClear) percentage was 56.3 ± 16, similar in most animals. The HRL was reached at a notably different HR among individuals (132 to 251 bpm). The field exercise test protocol used herein is useful to assess BLConc and HR changes in acute response to exercise in CPHs. It would be useful to evaluate training kinetics with other parameters including cell blood count and muscle enzymes.
© 2021 The Authors. Published by Elsevier Ltd.
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Publication Date: 2021-06-08 PubMed ID: 34189341PubMed Central: PMC8219982DOI: 10.1016/j.vas.2021.100185Google Scholar: Lookup
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Summary

This research summary has been generated with artificial intelligence and may contain errors and omissions. Refer to the original study to confirm details provided. Submit correction.

This study examined the blood lactate levels and heart rates of Colombian Paso horses during a set exercise program, revealing individual variation in responses and suggesting the applied protocol as suitable for future evaluations involving training kinetics and other indicators.

Objective and Methodology

  • The primary objective of this research was to try to understand the changes in blood lactate concentration and heart rate in Colombian Paso Horses (CPHs), in response to a standardized field exercise test.
  • To achieve this objective, a standardized 30-minute field exercise test was administered to 11 untrained adult CPHs, comprising both sexes. Throughout the workout, measurements of the horses’ blood lactate concentration and heart rate were conducted – at the beginning, periodically during, and in recovery phase after the exercise.

Analysis and Results

  • As predicted, the exercise led to an increment in heart rates in accordance with the intensity of the workout protocol. Similarly, blood lactate concentration also generally increased during the test.
  • However, the distribution of the blood lactate concentration values during each step of the exercise test was greatly dispersed, pointing out a degree of variability in how each horse responded metabolically and cardiovascularly to the exercise test.
  • The mean percentage of blood lactate clearance – the amount of lactic acid cleared from the blood after the period of exercise – was found to be approximately 56.3% with a variation of 16, indicating not all lactic acid produced during exercise could be cleared off instantly post-exercise.
  • The horses’ individual heart rate at which a blood lactate concentration of 4 mmol/L (termed as ‘anaerobic threshold’ or Heart Rate Lactate) was significantly variable, ranging from 132 to 251 beats per minute. Reaching this threshold is considered the point where lactic acid begins to accumulate in the blood faster than it can be removed, a condition leading to muscle fatigue.

Conclusions and Implications

  • This study concludes that the field exercise test used in this experiment is effective in evaluating the changes in blood lactate concentration and heart rate of CPHs in response to acute exercise. In other words, it has utility in understanding how these horses will respond to high intensity field exercises and how this can impact their performance.
  • The paper also suggests that for a thorough understanding of training kinetics in these horses, other parameters such as cell blood count and muscle enzymes need to be integrated into the assessment.

Cite This Article

APA
Cabrera AMZ, Soto MJC, Aranzales JRM, Valencia NMC, Gutiérrez MPA. (2021). Blood lactate concentrations and heart rates of Colombian Paso horses during a field exercise test. Vet Anim Sci, 13, 100185. https://doi.org/10.1016/j.vas.2021.100185

Publication

Veterinary and animal science
ISSN: 2451-943X
NlmUniqueID: 101694897
Country: Netherlands
Language: English
Volume: 13
Pages: 100185
PII: 100185

Researcher Affiliations

Cabrera, Angélica M Zuluaga
  • Centauro Research Group, School of Veterinary Medicine, Faculty of Agrarian Sciences, Universidad de Antioquia, Calle 70 No. 52-21, AA 1226, Medellín Colombia.
Soto, Maria J Casas
  • Normandía Equine Center, Rionegro Colombia.
Aranzales, José R Martínez
  • Centauro Research Group, School of Veterinary Medicine, Faculty of Agrarian Sciences, Universidad de Antioquia, Calle 70 No. 52-21, AA 1226, Medellín Colombia.
Valencia, Nathalia M Correa
  • Centauro Research Group, School of Veterinary Medicine, Faculty of Agrarian Sciences, Universidad de Antioquia, Calle 70 No. 52-21, AA 1226, Medellín Colombia.
Gutiérrez, María P Arias
  • Universidad CES, Medellín Colombia.

Conflict of Interest Statement

The authors declare that they have no conflict of interest.

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Citations

This article has been cited 1 times.
  1. Mowry KC, Thomson-Parker TL, Morales C, Fikes KK, Stutts KJ, Leatherwood JL, Anderson MJ, Smith RX, Suagee-Bedore JK. Effects of Crude Rice Bran Oil and a Flaxseed Oil Blend in Young Horses Engaged in a Training Program.. Animals (Basel) 2022 Nov 2;12(21).
    doi: 10.3390/ani12213006pubmed: 36359130google scholar: lookup
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