Abstract

SALDIVIA-PAREDES, M. A.. Measurement of serum lactate levels and heart rate in canines (Canis lupus familiaris) Brachycephalic, Mesocephalic and Dolichocephalic submitted to a stress test on a motorized treadmill. Rev. Med. Vet. Zoot. [online]. 2022, vol.69, n.1, pp.33-39.  Epub June 09, 2022. ISSN 0120-2952.  https://doi.org/10.15446/rfmvz.v69n1.101531.

Serum lactate and heart rate (HR) levels were analyzed in 15 clinically healthy dogs that were subjected to stress tests on a motorized treadmill, seeking to verify a degree of muscle fatigue compared to an intense exercise test. Patients with brachycephalic, mesocephalic and dolichocephalic type cranial morphology were considered. Serum lactate measurements were procured by means of a portable meter, while heart rates were obtained through a portable oximeter at the times 0, 10, 20, and 30 minutes at different moments of physical effort on the motorized treadmill, which was adapted in its inclination by 15% and at a maximum speed of 10 km/h. Mean serum levels between mesocephalic and dolichocephalic dogs were significant, unlike brachycephalic dogs, which were not significant. The mean heart rates did not have a significant difference under 95% confidence.

Keywords : brachycephalic; dolichocephalic; fatigue; heart rate; serum lactate; mesocephalic; oximeter.

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