- About this Journal
- Abstracting and Indexing
- Aims and Scope
- Article Processing Charges
- Articles in Press
- Author Guidelines
- Bibliographic Information
- Citations to this Journal
- Contact Information
- Editorial Board
- Editorial Workflow
- Free eTOC Alerts
- Publication Ethics
- Reviewers Acknowledgment
- Submit a Manuscript
- Subscription Information
- Table of Contents
Journal of Obesity
Volume 2012 (2012), Article ID 730409, 15 pages
doi:10.1155/2012/730409
Influence of Running and Walking on Hormonal Regulators of Appetite in Women
1Department of Family and Consumer Sciences, University of Wyoming, Laramie, WY 82071, USA
2Department of Biostatistics, University of Washington, Seattle, WA 98195, USA
3Department of Animal Science, University of Wyoming, Laramie, WY 82071, USA
4Fay W. Whitney School of Nursing, University of Wyoming, Laramie, WY 82071, USA
Received 14 October 2011; Accepted 22 December 2011
Academic Editor: Pietro Forestieri
Copyright © 2012 D. Enette Larson-Meyer et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
Nine female runners and ten walkers completed a 60 min moderate-intensity (70% VO2max) run or walk, or 60 min rest in counterbalanced order. Plasma concentrations of the orexogenic peptide ghrelin, anorexogenic peptides peptide YY (PYY), glucagon-like peptide-1 (GLP-1), and appetite ratings were measured at 30 min interval for 120 min, followed by a free-choice meal. Both orexogenic and anorexogenic peptides were elevated after running, but no changes were observed after walking. Relative energy intake (adjusted for cost of exercise/rest) was negative in the meal following running ( kcal) versus walking ( kcal) (), although both were suppressed () compared to rest ( and kcal, resp.). The average rate of change in PYY and GLP-1 over time predicted appetite in runners, but only the change in GLP-1 predicted hunger () in walkers. Results provide evidence that exercise-induced alterations in appetite are likely driven by complex changes in appetite-regulating hormones rather than change in a single gut peptide.