Effect of Metabolic Rate on the Oxidation of Ingested Glucose and Fructose During Exercise

Abstract The purpose of the present study was to describe the relationship between the metabolic rate (W · kg -1 b.m.) and the oxidation rate (mg · kg -1 · min -1 ) of exogenous glucose and fructose during prolonged exercise in 18 healthy active male volunteers (V̇O 2 max = 43-71 ml · kg -1 · min -1...

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Bibliographic Details
Published in:International journal of sports medicine 1994-05, Vol.15 (4), p.177-180
Main Authors: Massicotte, D., Péronnet, F., Adopo, E., Brisson, G. R., Hillaire-Marcel, C.
Format: Article
Language:English
Subjects:
Adult
Biological and medical sciences
Energy Metabolism - physiology
Exercise - physiology
Fatty Acids, Nonesterified - blood
Fructose - metabolism
Fundamental and applied biological sciences. Psychology
Glucose - metabolism
Humans
Insulin - metabolism
Male
Nutrition
Oxidation-Reduction
Oxygen Consumption - physiology
Vertebrates: body movement. Posture. Locomotion. Flight. Swimming. Physical exercise. Rest. Sports
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Summary:Abstract The purpose of the present study was to describe the relationship between the metabolic rate (W · kg -1 b.m.) and the oxidation rate (mg · kg -1 · min -1 ) of exogenous glucose and fructose during prolonged exercise in 18 healthy active male volunteers (V̇O 2 max = 43-71 ml · kg -1 · min -1 ). Each subject performed three 120-min exercises at 60% V̇O 2 max (8.5-l5.0 W · kg -1 · min -1 ) on cycle ergometer while ingesting water only or 1.33 g · k -1 (97±9g; mean±SE) of 13 C-glucose or 13 C-fructose in water (7%). The oxidation rate of exogenous glucose and fructose increased linearly with increasing metabolic rate (r = 0.71 and 0.70, respectively, p
ISSN:0172-4622
1439-3964
DOI:10.1055/s-2007-1021043