Relationships between physiological variables and race performance in French standardbred trotters.
Abstract: The relationships between V4 (the velocity for a blood lactate concentration of 4 mmol/litre) and V200 (the velocity for a heart rate of 200 bpm) and the performance indices of 223 healthy French trotters were analysed. They were divided into four age groups of three, four, five and six years and over, and into three performance groups (good, intermediate and poor performers) defined by the index of trot (ITR), an annual index of performance calculated by the national stud. V4 and V200 were assessed during the performance of a three-step standardised field exercise test, and four performance indexes (ITR, earnings, best time and the number of starts) were calculated for each group. An analysis of variance showed that V4 and V200 were highly correlated with the horses' age and level of performance (P<0.05). The correlation between the physiological variables and ITR was better for the three- and four-year-old horses than for the older horses.
Publication Date: 2005-03-26 PubMed ID: 15789646DOI: 10.1136/vr.156.11.339Google Scholar: Lookup
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- Journal Article
- Research Support
- Non-U.S. Gov't
Summary
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This research investigates the relationships between certain physiological indicators and performance success in French standardbred trotter horses. The study found that two specific indicators, V4 and V200, are highly connected to the age and performance level of the horses.
Objective of the Research
- The main objective of this research is to understand the correlations between two physiological variables named V4 (the velocity at which a blood lactate concentration of 4 mmol/litre is reached) and V200 (the velocity at which a heart rate of 200 beats per minute is achieved) and the performance of French trotters.
Methodology
- The researchers selected a cohort of 223 healthy French trotter horses, that were divided into four age groups; three, four, five, and over six years. This age classification allows the study to consider any potential influence of the horse’s age on their performance.
- Further, these horses were categorized into three performance groups, defined as good, intermediate, and poor performers. This classification was based on the Index of Trot (ITR), an annual index of performance that is calculated by the national stud. The ITR was one of the four performance indices used in the study, along with earnings, best time, and the number of starts.
- Both V4 and V200 were measured while these horses undertook a structured field exercise test comprising three steps.
Findings and Statistical Analysis
- Through an analysis of variance, the researchers found that both V4 and V200 were highly correlated with the horses’ age and their level of performance. This signifies that these physiological variables could be potential indicators of a horse’s potential success in a race.
- The research also uncovered that the correlation between ITR and the physiological variables was stronger for the three and four years old horses as compared to older horses. This could suggest that these variables might be more predictive of performance in younger horses.
Implications of the Study
- This study provides significant insights into the potential role of physiological variables in predicting trotter performance.
- Beyond that, it can aid in strategic training and preparation for races, given a better understanding of the physiological factors at play that correlate with a horse’s performance.
Cite This Article
APA
Leleu C, Cotrel C, Courouce-Malblanc A.
(2005).
Relationships between physiological variables and race performance in French standardbred trotters.
Vet Rec, 156(11), 339-342.
https://doi.org/10.1136/vr.156.11.339 Publication
Researcher Affiliations
- Pégase Mayenne, Departement de Médecine du Sport, Centre Hospitalier, 53 015 Laval, France.
MeSH Terms
- Age Factors
- Analysis of Variance
- Animals
- Exercise Test / veterinary
- France
- Heart Rate / physiology
- Horses / blood
- Horses / physiology
- Lactic Acid / blood
- Physical Conditioning, Animal / physiology
- Physical Endurance / physiology
Citations
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