Monitoring training success using a lactate-speed relationship.

This research article describes a method developed to monitor the training status of racehorses by measuring blood lactate levels after variable exercise loads, allowing for the assessment of changes in physical fitness.

Objective of Study

The study aimed to create a reliable testing procedure that can report on the training fitness of different racehorses, despite having undergone non-identical exercise loadings. The main tool for this test was the blood lactate level of these racehorses.

Research Methodology

• Five training trotters were selected and their blood lactate levels were analyzed under almost identical environmental conditions.
• A three-stage test procedure was developed incorporating ‘small,’ ‘medium,’ and ‘high’ exercise loads for each horse. The particular load, however, was decided by the horse’s coach and varied for each horse.
• After each phase of the test, blood samples were taken to determine lactate levels.
• The lactate level was then related to the speed of each horse, creating a lactate-speed relationship.
• The data gathered were used to fit into a certain curve equation (y = y0 + e(k + b*x)) with an r2 > 0.93 fit.

Results & Evaluation of the Training Test

• Using the fitted equation, the researchers calculated a ‘comparative speed’ (V), which is the mean of the calculated velocities (V4, V8, and V20) achieved by inserting specific imaginary lactic acid concentrations into the equation.
• Utilizing V, the method enabled the researchers to identify increases and decreases in physical fitness, both individually and collectively on one testing date, and throughout separate dates for one horse.
• The paper concludes with an in-depth discussion of the benefits and existing limitations of the method.

Significance of the Research

This study is significant as it provides a novel method to monitor and evaluate the training status and fitness level of racehorses. Using the blood lactate measurements and the lactate-speed relationship, the researchers established an adaptable tool mattering not of the specific exercise load. This method offers new possibilities for trainers and researchers to monitor and adjust the training of racehorses more accurately. It also provides a foundation for future research to mitigate the limitations and maximize the potential of blood lactate level analysis in sports physiology.