Journal of Applied Physiology Ad Instruments
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH
QUICK SEARCH:   [advanced]


     

J Appl Physiol (November 16, 2001). doi:10.1152/japplphysiol.00706.2001
This Article
Right arrow Full Text (PDF) Free
Right arrow All Versions of this Article:
92/3/1045    most recent
00706.2001v1
Right arrow Submit a response
Right arrow Alert me when this article is cited
Right arrow Alert me when eLetters are posted
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Melanson, E. L
Right arrow Articles by Hill, J. O
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Melanson, E. L
Right arrow Articles by Hill, J. O

Articles in PresS, published online ahead of print November 16, 2001
J Appl Physiol, 10.1152/jap.00706.2001
Submitted on July 6, 2001
Accepted on November 10, 2001

The Effect of Exercise Intensity on 24 h Energy Expenditure and Nutrient Oxidation

Edward L Melanson1*, Teresa A Sharp1, Helen M Seagle1, Tracy J Horton1, William T Donahoo1, Gary K Grunwald1, Jere T Hamilton1, and James O Hill1

1 Center for Human Nutrition, University of Colorado Health Sciences Center, Denver, CO, USA

* To whom correspondence should be addressed. E-mail: ed.melanson{at}uchsc.edu.

The aim of this study was to determine the effects of exercise at different intensities on 24 h energy expenditure (EE) and substrate oxidation. 16 adults (8 M/8 F) were studied on 3 occasions [sedentary day (CON), a low-intensity exercise day (LI, 400 kcal at 40% of VO2max), and a high-intensity exercise day (HI, 400 kcal at 70% of VO2max)] using whole-room indirect calorimetry. 24 h EE and carbohydrate oxidation were significantly elevated on the exercise days (CON<LI=HI), but 24 h fat oxidation was not different across conditions. Muscle enzymatic profile was not consistently related to 24 h fat or carbohydrate oxidation. Upon further analysis, it was found that compared to males, females sustained slightly higher rates of 24 h fat oxidation (mg.kg FFM-1.min-1), and had a muscle enzymatic profile favoring fat oxidation. It is concluded that exercise intensity has no effect on 24 h EE or nutrient oxidation. Additionally, it appears that females may sustain slightly greater 24 h fat oxidation rates during waking and active periods of the day.




This article has been cited by other articles:


Home page
 Am. J. Clin. Nutr.Home page
K. Ohkawara, S. Tanaka, K. Ishikawa-Takata, and I. Tabata
Twenty-four-hour analysis of elevated energy expenditure after physical activity in a metabolic chamber: models of daily total energy expenditure
Am. J. Clinical Nutrition, May 1, 2008; 87(5): 1268 - 1276.
[Abstract] [Full Text] [PDF]

Home page
 J. Appl. Physiol.Home page
G. C. Henderson, J. A. Fattor, M. A. Horning, N. Faghihnia, M. Luke-Zeitoun, and G. A. Brooks
Retention of intravenously infused [13C]bicarbonate is transiently increased during recovery from hard exercise
J Appl Physiol, November 1, 2007; 103(5): 1604 - 1612.
[Abstract] [Full Text] [PDF]

Home page
 Am. J. Physiol. Regul. Integr. Comp. Physiol.Home page
M. A. Tarnopolsky, C. D. Rennie, H. A. Robertshaw, S. N. Fedak-Tarnopolsky, M. C. Devries, and M. J. Hamadeh
Influence of endurance exercise training and sex on intramyocellular lipid and mitochondrial ultrastructure, substrate use, and mitochondrial enzyme activity
Am J Physiol Regulatory Integrative Comp Physiol, March 1, 2007; 292(3): R1271 - R1278.
[Abstract] [Full Text] [PDF]

Home page
 J. Appl. Physiol.Home page
C. C. Kuo, J. A. Fattor, G. C. Henderson, and G. A. Brooks
Lipid oxidation in fit young adults during postexercise recovery
J Appl Physiol, July 1, 2005; 99(1): 349 - 356.
[Abstract] [Full Text] [PDF]

Home page
 J. Appl. Physiol.Home page
M. C. Venables, J. Achten, and A. E. Jeukendrup
Determinants of fat oxidation during exercise in healthy men and women: a cross-sectional study
J Appl Physiol, January 1, 2005; 98(1): 160 - 167.
[Abstract] [Full Text] [PDF]

Home page
 J. Appl. Physiol.Home page
D. W. Russ and J. A. Kent-Braun
Sex differences in human skeletal muscle fatigue are eliminated under ischemic conditions
J Appl Physiol, June 1, 2003; 94(6): 2414 - 2422.
[Abstract] [Full Text] [PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH
Visit Other APS Journals Online
Copyright © 2009 by the American Physiological Society.