Effects of training status on the metabolic responses to high carbohydrate and high fat meals.
Int J Sport Nutr Exerc Metab
; 10(1): 16-27, 2000 Mar.
Article
em En
| MEDLINE
| ID: mdl-10722778
ABSTRACT
The purpose of this study was to determine if there is a difference between the way in which aerobically trained and untrained women metabolize fats and carbohydrates at rest in response to either a high-fat or high-carbohydrate meal. Subjects, 6 per group, were fed a high CHO meal (2068 kJ, 76% CHO, 23% fat, 5% protein) and a high fat meal (2093 kJ, 21% CHO, 72% fat, 8% protein) in counterbalanced order. Resting metabolic rate (RMR) was measured every half-hour for 5 hours. RMR was similar between groups. However, after ingesting a high CHO meal, trained subjects had a peak in metabolism at minute 60, not evident in the untrained subjects. In addition, postprandial RER from minutes 120-300 were lower and fat use was greater after the high CHO meal for the trained subjects. These results suggest that aerobically trained women have an accelerated CHO uptake and overall lower CHO oxidation following the ingestion of a high CHO meal.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Carboidratos da Dieta
/
Gorduras na Dieta
/
Exercício Físico
/
Aptidão Física
Tipo de estudo:
Observational_studies
/
Prognostic_studies
Limite:
Adult
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Female
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Humans
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Middle aged
Idioma:
En
Revista:
Int J Sport Nutr Exerc Metab
Ano de publicação:
2000
Tipo de documento:
Article