Physical preparation and antioxidant supplementation for endurance racehorses

SUMMARY The objective of this review is to discuss aspects of the practice of endurance racing and alternatives to reduce oxidative stress in horses. Characterized by a high aerobic effort and requirement of the organic systems for maintenance of homeostasis, the endurance race is a form of sport fo...

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Veröffentlicht in:Revista brasileira de saúde e produção animal 2018-03, Vol.19 (1), p.23-31
Hauptverfasser: Lacerda, Yasmim Gonçalves, Nascimento, Ariane Flávia do, Alves, Felipe, Monteiro, Calebe Gallardo, Leira, Matheus Hernandes, Reghim, Lucas Silva
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Sprache:eng
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Zusammenfassung:SUMMARY The objective of this review is to discuss aspects of the practice of endurance racing and alternatives to reduce oxidative stress in horses. Characterized by a high aerobic effort and requirement of the organic systems for maintenance of homeostasis, the endurance race is a form of sport for horses that demands great attention to the physical preparation of these animals and must be progressive, paying attention to the physiological parameters to evaluate the adaptation of the organism. To begin the preparation, the animals must be at least five years old and the duration can be on average of three years. Another factor that may be detrimental to the health and well-being of competing horses is the occurrence of oxidative stress, due to the accumulation of free radicals in the tissues, generating post-exercise muscle injuries. Antioxidant supplementation has been an alternative to this disorder. Several studies using compounds rich in antioxidant enzymes, such as superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidase (GPx), demonstrate positive effects on antioxidant status, markers of oxidative stress and muscle enzymes, which may represent an improvement in performance during the exercise and recovery of animals destined to the practice of equestrian sports. Therefore, a correct physical preparation becomes crucial and antioxidant supplementation may be used to maintain the health and well-being of horses destined to the equestrian endurance practice. RESUMO Objetivou-se com esta revisão discutir aspectos da prática de enduro equestre e alternativas para reduzir o estresse oxidativo em cavalos. Caracterizado por um alto esforço aeróbio e exigência dos sistemas orgânicos para manutenção da homeostase, o enduro equestre é uma modalidade de esporte para cavalos que exige grande atenção à preparação física desses animais e deve ser progressiva, atentando-se aos parâmetros fisiológicos para avaliar a adaptação do organismo. Para iniciar a preparação, os animais devem ter pelo menos cinco anos de idade e a duração pode ser em média de três anos. Outro fator que pode ser prejudicial para a saúde e o bem-estar dos cavalos concorrentes é a ocorrência de estresse oxidativo, por acúmulo de radicais livres nos tecidos, gerando lesões musculares pósexercício. A suplementação com antioxidantes tem sido uma alternativa a esta desordem. Vários estudos utilizando compostos ricos em enzimas antioxidantes, como superóxido dismutase (SOD), catalase (
ISSN:1519-9940
1519-9940
DOI:10.1590/s1519-99402018000100003