Please use this identifier to cite or link to this item: http://hdl.handle.net/10637/15454

Electrocardiographic ventricular repolarisation processes in Andalusian horses before and after physical training

Title: Electrocardiographic ventricular repolarisation processes in Andalusian horses before and after physical training
Authors : Muñoz Juzado, Ana
Satué Ambrojo, Katiuska
Rovira Cardete, Sabina
Gómez Lucas, Raquel
Benito Hernández, Milagros
Keywords: CaballosHorsesEjercicio físicoExerciseRendimientoPerformanceElectrocardiografía en veterinariaVeterinary electrocardiographyCorazónHeartEntrenamientoTraining
Publisher: Trakia University, Faculty of Veterinary Medicine
Citation: Muñoz, A., Satue, K., Rovira, S., Gómez, R. & Benito, M. (2005). Electrocardiographic ventricular repolarisation processes in Andalusian horses before and after physical training. Bulgarian Journal of Veterinary Medicine, vol. 8, i. 1 (mar.), pp. 23-34.
Abstract: Equine ventricular repolarisation wave can be influenced by many physiological and pathological factors. T wave abnormalities have been related to a shorter time for ventricular filling, reduced stroke volume, cardiac output and exercise performance in racehorses. The present research performed electrocardiographic recordings in 14 four-year-old male Andalusian horses, when they were untrained and after three months of an aerobic training programme. Leads I, aVF, V10, V1R, V3R, V1L and V3L were used. It was aimed to assess the incidence of abnormal T waves in this breed, according to the criteria of abnormalities established for other equine breeds, to evaluate if the changes induced by training in the T wave are the same that those reported in the athletic heart syndrome in canine and human athletes and, to analyse if the abnormal T waves could have been related to changes in the plasma concentrations of Na, K, and Cl, since these electrolytes are involved in the cardiac electrical processes. It was found out that the incidence of abnormal T waves was quite high in the Andalusian breed, especially in the precordial leads. Moreover, the incidence of abnormal T waves increased in precordial leads and decreased in lead I and aVF after training. The abnormal T waves after training were shorter and had the same voltage, changes which were different to those presented for the athlete’ heart syndrome. The horses with abnormal T waves had higher plasma K concentrations, both before and after training. Plasma Na and Cl concentration at rest decreased after training. Plasma Na concentrations were positively related to T wave duration and negatively to T wave voltage.
URI: http://hdl.handle.net/10637/15454
Rights : http://creativecommons.org/licenses/by-nc-nd/4.0/deed.es
Open Access
ISSN: 1311-1477
1313-3543 (Electrónico)
Issue Date: Mar-2005
Center : Universidad Cardenal Herrera-CEU
Appears in Collections:Dpto. Medicina y Cirugía Animal





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