Teor lipídico da dieta, lipídios séricos e peso corporal em ratos exercitados
Data
2009-06-01
Autores
Franco, Larissa Dantas Pereira [UNESP]
Campos, Juliana Alvares Duarte Bonini [UNESP]
Demonte, Aureluce [UNESP]
Título da Revista
ISSN da Revista
Título de Volume
Editor
Pontifícia Universidade Católica de Campinas
Resumo
OBJETIVO: Analisar os efeitos de diferentes níveis de triglicerídeos fornecidos pela dieta sobre os parâmetros séricos triglicerídeos e lipoproteínas de alta densidade e o peso corporal de ratos sedentários e exercitados. MÉTODOS: Foram utilizados ratos Wistar, alimentados com dietas controle (7%peso/peso) e hiperlipídica (14% peso/peso) e subdivididos em sedentários e exercitados, por um período de 8 semanas. RESULTADOS: Verificou-se que o peso não diferiu entre os grupos, embora o consumo tenha sido reduzido nos grupos com dieta hiperlipídica. Os níveis de triglicerídeos não foram aumentados com a dieta rica em gordura e o HDL-colesterol se elevou apenas entre os animais exercitados que tiveram dieta normolipídica. CONCLUSÃO: A intensidade e o tempo de exercício físico influenciam de maneira mais aguda os níveis de HDL-colesterol em comparação aos níveis de triglicérides. Sugere-se que a dieta hiperlipídica deveria sobrepor (14%peso/peso) de gordura para que houvesse alterações relevantes nos parâmetros lipídicos e supostamente um aumento da performance física.
OBJECTIVE: This study analyzed the effects of different amounts of dietary triglycerides on the serum lipids triglycerides and high-density lipoproteins and body weight of inactive and exercised rats. METHODS: Male Wistar rats were divided into two groups: one fed a control diet (7% fat by weight) and another fed a high-fat diet (14% fat by weight). These two groups were further divided into two subgroups: one remained inactive and the other exercised for 8 weeks. RESULTS: Body weight did not differ among the groups although less food was consumed by the high-fat diet group. Triglyceride levels did not increase with the high-fat diet and HDL-cholesterol only increased in the normal-fat diet, exercised group. CONCLUSION: Physical exercise intensity and duration had a stronger influence on HDL-cholesterol levels than on triglyceride levels. The diet would probably need a higher fat content to actually affect serum lipid levels and supposedly increase physical performance.
OBJECTIVE: This study analyzed the effects of different amounts of dietary triglycerides on the serum lipids triglycerides and high-density lipoproteins and body weight of inactive and exercised rats. METHODS: Male Wistar rats were divided into two groups: one fed a control diet (7% fat by weight) and another fed a high-fat diet (14% fat by weight). These two groups were further divided into two subgroups: one remained inactive and the other exercised for 8 weeks. RESULTS: Body weight did not differ among the groups although less food was consumed by the high-fat diet group. Triglyceride levels did not increase with the high-fat diet and HDL-cholesterol only increased in the normal-fat diet, exercised group. CONCLUSION: Physical exercise intensity and duration had a stronger influence on HDL-cholesterol levels than on triglyceride levels. The diet would probably need a higher fat content to actually affect serum lipid levels and supposedly increase physical performance.
Descrição
Palavras-chave
Dieta, Exercício, Gorduras na dieta, Ratos Wistar, Diet, Exercise, Dietary fats, Rats Wistar
Como citar
Revista de Nutrição. Pontifícia Universidade Católica de Campinas, v. 22, n. 3, p. 359-366, 2009.