2021
DOI: 10.34117/bjdv7n4-546
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Efeitos de diferentes volumes de exercício físico aeróbio sobre a atividade da enzima catalase em diferentes tipos de fibras do músculo esquelético em ratos Wistar/ Effects of different volumes of aerobic exercise on catalase enzyme activity in different types of skeletal muscle fibers in Wistar rats

Abstract: O Desequilíbrio Redox (DR), que ocorre quando há uma excessiva produção de Espécies Reativas de Oxigênio (ERO) de forma que exceda a capacidade do sistema de defesa antioxidante, é um processo que está associado à alguns distúrbios no tecido muscular, por exemplo, sarcopenia e distrofia muscular de Duchenne. O exercício físico praticado de forma crônica é capaz de aumentar a capacidade antioxidante das fibras musculares, tornando-as adaptadas para manter o equilíbrio redox. A adaptação do sistema de defesa ant… Show more

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“…Moderate physical activity such as treadmill and aerobic training increases antioxidant enzymes such as CAT, SOD, and GPx in animals and humans (De Castro et al, 2009;Vilela et al, 2018;Parry et al, 2020;Matta et al, 2021). Two hours of training also increased CAT enzyme activity in both type 1 and 2 muscle fibers in rats (Mendes et al, 2021). Increased CAT expression inhibits mitochondrial dysfunction, maintains muscle mass and energy production, improves exercise capacity, and prevents reductions in muscle fiber diameter, suggesting that expression of muscular mitochondrial CAT can prevent sarcopenia-related phenotypes (Xu et al, 2021).…”
Section: Effects Of Sarcopenia and Exercise On Antioxidant Defensesmentioning
confidence: 99%
“…Moderate physical activity such as treadmill and aerobic training increases antioxidant enzymes such as CAT, SOD, and GPx in animals and humans (De Castro et al, 2009;Vilela et al, 2018;Parry et al, 2020;Matta et al, 2021). Two hours of training also increased CAT enzyme activity in both type 1 and 2 muscle fibers in rats (Mendes et al, 2021). Increased CAT expression inhibits mitochondrial dysfunction, maintains muscle mass and energy production, improves exercise capacity, and prevents reductions in muscle fiber diameter, suggesting that expression of muscular mitochondrial CAT can prevent sarcopenia-related phenotypes (Xu et al, 2021).…”
Section: Effects Of Sarcopenia and Exercise On Antioxidant Defensesmentioning
confidence: 99%