Document Detail


Effects of training status on the metabolic responses to high carbohydrate and high fat meals.
MedLine Citation:
PMID:  10722778     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
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.
Authors:
V L Bowden; R G McMurray
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  International journal of sport nutrition and exercise metabolism     Volume:  10     ISSN:  1526-484X     ISO Abbreviation:  Int J Sport Nutr Exerc Metab     Publication Date:  2000 Mar 
Date Detail:
Created Date:  2000-08-04     Completed Date:  2000-08-04     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  100939812     Medline TA:  Int J Sport Nutr Exerc Metab     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  16-27     Citation Subset:  IM; S    
Affiliation:
Department of Physical Education, Exercise and Sport Science, University of North Carolina, Chapel Hill 27599, USA.
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MeSH Terms
Descriptor/Qualifier:
Adult
Analysis of Variance
Basal Metabolism / physiology
Body Height
Body Weight
Dietary Carbohydrates / administration & dosage,  metabolism*,  pharmacokinetics
Dietary Fats / administration & dosage,  metabolism*
Dietary Proteins / administration & dosage
Digestion / physiology
Energy Metabolism / physiology
Exercise / physiology*
Exercise Test
Female
Follow-Up Studies
Humans
Middle Aged
Oxidation-Reduction
Oxygen Consumption / physiology
Physical Fitness / physiology*
Pulmonary Gas Exchange / physiology
Skinfold Thickness
Spirometry
Chemical
Reg. No./Substance:
0/Dietary Carbohydrates; 0/Dietary Fats; 0/Dietary Proteins

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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