Effect of pre-exercise carbohydrate availability on fat oxidation and energy expenditure after a high-intensity exercise

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MetadadosDescriçãoIdioma
Autor(es): dc.creatorFerreira, G. A.-
Autor(es): dc.creatorFelippe, L. C.-
Autor(es): dc.creatorSilva, R. L. S.-
Autor(es): dc.creatorBertuzzi, R.-
Autor(es): dc.creatorOliveira, F. R. de-
Autor(es): dc.creatorPires, F. O.-
Autor(es): dc.creatorLima-Silva, A. E.-
Data de aceite: dc.date.accessioned2026-02-09T12:11:24Z-
Data de disponibilização: dc.date.available2026-02-09T12:11:24Z-
Data de envio: dc.date.issued2019-04-17-
Data de envio: dc.date.issued2019-04-17-
Data de envio: dc.date.issued2018-
Fonte completa do material: dc.identifierhttps://repositorio.ufla.br/handle/1/33599-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1156241-
Descrição: dc.descriptionThe aim of this study was to test the hypothesis that reduced pre-exercise carbohydrate (CHO) availability potentiates fat oxidation after an exhaustive high-intensity exercise bout. Eight physically active men underwent a high-intensity exercise (B95% . VO2max) until exhaustion under low or high pre-exercise CHO availability. The protocol to manipulate pre-exercise CHO availability consisted of a 90-min cycling bout at B70% . VO2max + 6 1-min at 125% . VO2max with 1-min rest, followed by 48 h under a low- (10% CHO, low-CHO availability) or high-CHO diet (80% CHO, high-CHO availability). Time to exhaustion was shorter and energy expenditure (EE) lower during the high-intensity exercise in low- compared to high-CHO availability (8.6± 0.8 and 11.4±1.6 min, and 499±209 and 677±343 kJ, respectively, Po0.05). Post-exercise EE was similar between lowand high-CHO availability (425±147 and 348±54 kJ, respectively, P40.05), but post-exercise fat oxidation was significantly higher (Po0.05) in low- (7,830±1,864 mg) than in high-CHO availability (6,264±1,763 mg). The total EE (i.e., exercise EE plus post-exercise EE) was similar between low- and high-CHO availability (924±264 and 1,026±340 kJ, respectively, P40.05). These results suggest that a single bout of high-intensity exercise performed under low-CHO availability increased postexercise fat oxidation, and even with shorter exercise duration, both post-exercise EE and total EE were not impaired.-
Formato: dc.formatapplication/pdf-
Idioma: dc.languageen-
Publicador: dc.publisherAssociação Brasileira de Divulgação Científica-
Direitos: dc.rightsAttribution 4.0 International-
Direitos: dc.rightsAttribution 4.0 International-
Direitos: dc.rightsacesso aberto-
Direitos: dc.rightshttp://creativecommons.org/licenses/by/4.0/-
Direitos: dc.rightshttp://creativecommons.org/licenses/by/4.0/-
???dc.source???: dc.sourceBrazilian Journal of Medical and Biological Research-
Palavras-chave: dc.subjectExcess post-exercise oxygen consumption-
Palavras-chave: dc.subjectFat oxidation-
Palavras-chave: dc.subjectCarbohydrate oxidation-
Palavras-chave: dc.subjectDiet manipulation-
Palavras-chave: dc.subjectAerobic metabolism-
Título: dc.titleEffect of pre-exercise carbohydrate availability on fat oxidation and energy expenditure after a high-intensity exercise-
Tipo de arquivo: dc.typeArtigo-
Aparece nas coleções:Repositório Institucional da Universidade Federal de Lavras (RIUFLA)

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