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Obes Rev. 2012 Oct;13(10):835-47. doi: 10.1111/j.1467-789X.2012.01012.x. Epub 2012 Jun 11.

Why do individuals not lose more weight from an exercise intervention at a defined dose? An energy balance analysis.

Author information

  • 1Center for Quantitative Obesity Research, Montclair State University, Montclair, NJ 07043, USA. thomasdia@mail.montclair.edu

Abstract

Weight loss resulting from an exercise intervention tends to be lower than predicted. Modest weight loss can arise from an increase in energy intake, physiological reductions in resting energy expenditure, an increase in lean tissue or a decrease in non-exercise activity. Lower than expected, weight loss could also arise from weak and invalidated assumptions within predictive models. To investigate these causes, we systematically reviewed studies that monitored compliance to exercise prescriptions and measured exercise-induced change in body composition. Changed body energy stores were calculated to determine the deficit between total daily energy intake and energy expenditures. This information combined with available measurements was used to critically evaluate explanations for low exercise-induced weight loss. We conclude that the small magnitude of weight loss observed from the majority of evaluated exercise interventions is primarily due to low doses of prescribed exercise energy expenditures compounded by a concomitant increase in caloric intake.

© 2012 The Authors. obesity reviews © 2012 International Association for the Study of Obesity.

PMID:
22681398
[PubMed - indexed for MEDLINE]
PMCID:
PMC3771367
Free PMC Article
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