Physiological parameter values in greyhounds before and after high-intensity exercise
Francisco Javier Pellegrino1,2,3, Analía Risso1,2,3, Pablo G Vaquero4
1LAFIVET - Laboratorio de Fisioterapia Veterinaria, Facultad de Ciencias Veterinarias, Universidad Nacional de La Plata, 60 y 118 (1900) La Plata, Argentina.
Open Veterinary Journal
|May 4, 2018
Summary
Sprint exercise in greyhounds significantly elevates heart rate, blood lactate, and rectal temperature. While heart rate recovers quickly, blood lactate and temperature require longer recovery, indicating intense anaerobic effort in sporting dogs.
Area of Science:
- Canine physiology
- Sports science
- Exercise physiology
Background:
- Dog sports are increasingly popular, necessitating accurate fitness assessments.
- Physiological parameters like heart rate, blood lactate, and rectal temperature reflect a dog's response to exercise.
- Limited research exists on physiological changes during short-distance sprint exercise in greyhounds.
Purpose of the Study:
- To evaluate the physiological responses (heart rate, blood lactate, rectal temperature) of greyhounds to short-distance sprint exercise.
- To establish reference values for these parameters following high-intensity sprint activity.
Main Methods:
- Nine greyhounds performed a 100-m sprint exercise.
- Heart rate and rectal temperature were measured before, immediately after, and during a 10-minute recovery period.
- Blood lactate levels were determined at the same time points.
Main Results:
- Significant increases in heart rate, blood lactate, and rectal temperature were observed immediately post-exercise (P<0.01).
- Heart rate returned to baseline within 10 minutes of recovery.
- Blood lactate and rectal temperature remained elevated post-exercise, indicating sustained physiological stress.
Conclusions:
- Sprint exercise over short distances induces high-intensity effort in greyhounds, characterized by predominant anaerobic metabolism.
- Heart rate, blood lactate, and rectal temperature are reliable indicators of physiological response to intense exercise in sporting dogs.
- Extended recovery periods are needed for blood lactate and rectal temperature to return to resting levels.
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