Effect of exercise intensity on 24-h energy expenditure and nutrient oxidation

Center for Human Nutrition, University of Colorado Health Sciences Center, Denver, Colorado 80262 The aim of this study was to determine the effects of exercise at different intensities on 24-h energy expenditure (EE) and substrate oxidation. Sixteen adults (8 men and 8 women) were studied on three...

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Published in:Journal of applied physiology (1985) 2002-03, Vol.92 (3), p.1045-1052
Main Authors: Melanson, Edward L, Sharp, Teresa A, Seagle, Helen M, Horton, Tracy J, Donahoo, William T, Grunwald, Gary K, Hamilton, Jere T, Hill, James O
Format: Article
Language:English
Subjects:
Adult
Biological and medical sciences
Body fat
Calorimetry, Indirect
Carbohydrate Metabolism
Circadian Rhythm
Energy Metabolism
Exercise
Exercise - physiology
Fats - metabolism
Female
Fundamental and applied biological sciences. Psychology
Gender
Humans
Intermediate and energetic metabolism
Male
Metabolisms and neurohumoral controls
Muscle, Skeletal - enzymology
Oxidation-Reduction
Oxygen
Physical Endurance - physiology
Sex Characteristics
Vertebrates: anatomy and physiology, studies on body, several organs or systems
Weight control
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Summary:Center for Human Nutrition, University of Colorado Health Sciences Center, Denver, Colorado 80262 The aim of this study was to determine the effects of exercise at different intensities on 24-h energy expenditure (EE) and substrate oxidation. Sixteen adults (8 men and 8 women) were studied on three occasions [sedentary day (Con), a low-intensity exercise day (LI; 400 kcal at 40% of maximal oxygen consumption) and a high-intensity exercise day (HI; 400 kcal at 70% of maximal oxygen consumption)] by using whole room indirect calorimetry. Both 24-h EE and carbohydrate oxidation were significantly elevated on the exercise days (Con 
ISSN:8750-7587
1522-1601
DOI:10.1152/japplphysiol.00706.2001