Será um treino de 6 semanas eficiente no aprimoramento de índices de metabolismo energético em jovens Lusitanos na disciplina de dressage?
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2024
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O presente trabalho teve como objetivo avaliar a influência de um programa de treino no gasto energético (GE), custo de transporte (COT) e poder metabólico (Pmet) de jovens cavalos Puro Sangue Lusitano, utilizados na disciplina de dressage. Para tal, 9 equinos machos, ~4 anos, foram avaliados antes (M1) e após seis semanas (M2) de um programa de treino que incluía 40- 80 min de exercícios preparatórios de dressage, 6x/semana, ajustados individualmente. Em M1 e M2, os animais foram examinados em teste de campo de dressage (TCD), quando foram registadas frequência cardíaca (FC) e respiratória (FR), temperatura corporal (TC) e lactato sanguíneo. Nos TCD, os cavalos utilizaram monitor cardíaco (Polar H10) para cálculo utilizando as fórmulas: GE (J/kg/min) = 0,0566 x FC1,9955, COT = (FC-35)/kg/m x103 e Pmet (batimentos/min/kg) = (FC ? 35)/min/kg. Os dados foram analisados com nível de significância de 5%. O treino levou a redução significativa de GE (799,9 vs. 682,8 J/min; p=0,037) e COT (0,73 vs. 0,59 bpm/kg/m.103 ; p=0,042), sem alterar Pmet. Ainda, observou-se aumento significativo na velocidade máxima (5,81 vs. 7,36 m/s; p=0,013). Foi possível concluir que o treino proposto levou a maior eficiência dos custos de locomoção, com menores valores de GE e COT. Palavras-chave: custo de transporte, energia, poder metabólico, exercício.
The present work aimed to evaluate the influence of a training program on energy expenditure (EE), cost of transport (COT) and metabolic power (Pmet) in young Purebred Lusitano horses used in dressage. With this purpose, 9 male horses, ~4 years old, were evaluated before (M1) and after six weeks (M2) of a training program that included 40-80 min of preparatory dressage exercises, 6x/week, individually adjusted. In M1 and M2, the animals were examined in a dressage field test (DFT), when heart rate (HR) and respiratory rate (RR), body temperature (TC) and blood lactate were recorded. In DFT, the horses used a cardiac monitor (Polar H10) for calculation using the formulas: EE (J/kg/min) = 0.0566 x HR 1.9955 , COT = (HR–35)/kg/m x103 and Pmet (beats/min/kg) = (HR − 35)/min/kg. The data were analyzed with a significance level of 5%. The training led to a significant reduction in EE (799.9 vs. 682.8 J/min; p=0.037) and COT (0.73 vs. 0.59 bpm/kg/m.103; p=0.042), without change in Pmet. Furthermore, a significant increase in maximum speed was observed (5.81 vs. 7.36 m/s; p=0.013). It was possible to conclude that the proposed training protocol led to greater efficiency in locomotion costs, with lower EE and COT values. Keywords: Cost of transport, energy, metabolic power, exercise.
The present work aimed to evaluate the influence of a training program on energy expenditure (EE), cost of transport (COT) and metabolic power (Pmet) in young Purebred Lusitano horses used in dressage. With this purpose, 9 male horses, ~4 years old, were evaluated before (M1) and after six weeks (M2) of a training program that included 40-80 min of preparatory dressage exercises, 6x/week, individually adjusted. In M1 and M2, the animals were examined in a dressage field test (DFT), when heart rate (HR) and respiratory rate (RR), body temperature (TC) and blood lactate were recorded. In DFT, the horses used a cardiac monitor (Polar H10) for calculation using the formulas: EE (J/kg/min) = 0.0566 x HR 1.9955 , COT = (HR–35)/kg/m x103 and Pmet (beats/min/kg) = (HR − 35)/min/kg. The data were analyzed with a significance level of 5%. The training led to a significant reduction in EE (799.9 vs. 682.8 J/min; p=0.037) and COT (0.73 vs. 0.59 bpm/kg/m.103; p=0.042), without change in Pmet. Furthermore, a significant increase in maximum speed was observed (5.81 vs. 7.36 m/s; p=0.013). It was possible to conclude that the proposed training protocol led to greater efficiency in locomotion costs, with lower EE and COT values. Keywords: Cost of transport, energy, metabolic power, exercise.
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VETERINARY MEDICINE, HORSE TRAINING, LUSITANIAN THOROUGHBRED, METABOLISM, EXERCISES, MONITORING, MESTRADO INTEGRADO EM MEDICINA VETERINÁRIA, MEDICINA VETERINÁRIA, VETERINÁRIA, TREINO DE CAVALOS, PURO-SANGUE LUSITANO, METABOLISMO, EXERCÍCIOS, MONITORIZAÇÃO, Mestrado Integrado em Medicina Veterinária