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- Title
Influence of Running and Walking on Hormonal Regulators of Appetite in Women.
- Authors
Enette Larson-Meyer, D.; Palm, Sonnie; Bansal, Aasthaa; Austin, Kathleen J.; Hart, Ann Marie; Alexander, Brenda M.
- 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 (-194 ± 206 kcal) versus walking (41 ± 196 kcal) (P = 0.015), although both were suppressed (P < 0.05) compared to rest (299±308 and 284±121 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 (P = 0.05) 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.
- Subjects
WYOMING; ACADEMIC medical centers; APPETITE; BLOOD testing; CENTERS for Disease Control &; Prevention (U.S.); CONFIDENCE intervals; STATISTICAL correlation; CROSSOVER trials; HORMONES; REGRESSION analysis; RESEARCH funding; PULMONARY function tests; RUNNING; T-test (Statistics); WALKING; X-ray densitometry in medicine; EQUIPMENT &; supplies; PHYSICAL activity; DATA analysis software; DESCRIPTIVE statistics
- Publication
Journal of Obesity, 2012, Vol 2012, p1
- ISSN
2090-0708
- Publication type
Article
- DOI
10.1155/2012/730409