RESUMO
La frecuencia cardiaca (Fc), frecuencia respiratoria (Fr), temperatura rectal (Tr), glucosa (Gl), lactatoplasmático (Lp), hematocrito (Hto), proteínas totales (Pt), albúmina (Al), urea (U), creatinina (Cr), aspartatoaminotransferasa (AST), creatinquinasa (CK), lactato dehidrogenasa (LDH), gamaglutamiltransferasa (GGT),fosfatasa alcalina (FA), calcio (Ca) y fósforo (P) en un grupo de equinos, se estudiaron en reposo (R), a los 5minutos (T5), 30 minutos (T30) y 60 minutos (T60) de finalizada una Prueba Combinada, consistente en unafase de 8 saltos variados en pista de arena, con una distancia de 240 metros, a una velocidad de 400 metros porminuto (m/m) y un recorrido de exterior, con 15 obstáculos, con una distancia de 3.100 metros, a una velocidadde 690 m/m. La competición se desarrolló en el mes de mayo con una temperatura ambiente de 14° C y unahumedad del 88 %. Todos los parámetros se elevaron a T5, recuperándose a T30, excepto Fr y Lp, los que semantuvieron elevados a T30 y T60 por la acidosis metabólica propia de este tipo de ejercicio. La Gl se mantuvosin cambios a los distintos tiempos y el Ca descendió a T30. En las condiciones de esta Prueba Combinada,las variables medidas volvieron a valores fisiológicos en los tiempos considerados aceptables para caballos enbuen estado de entrenamiento, sin embargo, estas variables presentaron diferencias significativas (p<0.05) conlos valores de reposo
Heart rate, respiratory rate, rectal temperature, glucose, plasma lactate, pack cell volume, total proteins,albumin, urea, creatinine, aspartate aminotransferase, creatine kinase, lactate dehydrogenase, gamma glutamyltransferase, alkaline fosfatase, calcium and phosphorus, in a group of horses, were studied at rest, at five, thirty and sixty minutes from the end of a Combined Test, beginning with eight jumps in a sand ring, on a distance of240 meters, at a speed of 400 meters per minute and a cross country course with fifteen jumps, on a distance of3.100 meters, at a speed of 690 meters per minute. The event took place in May (Southern Hemisphere) with atemperature of 14° C and 88 % of humidity.All variables were elevated at five minutes, recovering at thirty minutes, except from respiratory rate andplasma lactate, both of witch remained elevate at thirty and sixty minutes, due to the metabolic acidosis, characteristicof this type of exercise.Glucose showed no changes at any time and calcium descended at thirty minutes.In the conditions of this Combined Test, all the variables measured in this experience, returned to physiologicalvalues at times considered acceptable for well trained horses, although there were significant differences(p<0.05) with rest values
