| Influence of brisk walking on appetite, energy intake, and plasma acylated ghrelin. | |
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MedLine Citation:
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PMID: 19952806 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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PURPOSE: This study examined the effect of an acute bout of brisk walking on appetite, energy intake, and the appetite-stimulating hormone-acylated ghrelin. METHODS: Fourteen healthy young males (age 21.9 +/- 0.5 yr, body mass index 23.4 +/- 0.6 kg x m(-2), (.)VO2max 55.9 +/- 1.8 mL x kg(-1) x min(-1); mean +/- SEM) completed two 8-h trials (brisk walking and control) in a randomized counterbalanced fashion. The brisk walking trial commenced with 60 min of subjectively paced brisk walking on a level-motorized treadmill after which participants rested for 7 h. Participants rested for the duration of the control trial. Ad libitum buffet meals were offered twice during main trials (1.5-2 and 5-5.5 h). Appetite (hunger, fullness, satisfaction, and prospective food consumption) was assessed at 30-min intervals throughout. Levels of acylated ghrelin, glucose, insulin, and triacylglycerol were determined from plasma. RESULTS: Sixty minutes of brisk walking (7.0 +/- 0.1 km x h(-1) yielded a net (exercise minus resting) energy expenditure of 2008 +/- 134 kJ, yet it did not significantly influence appetite, energy/macronutrient intake, or the plasma concentration of acylated ghrelin either during or after exercise(P > 0.05). Participants did not compensate for energy expended during walking, therefore a deficit in energy was induced (1836 kJ, 439 kcal) relative to control. CONCLUSIONS: This study demonstrates that, despite inducing a moderate energy deficit, an acute bout of subjectively paced brisk walking does not elicit compensatory responses in acylated ghrelin, appetite, or energy intake. This finding lends support for a role of brisk walking in weight management. |
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Authors:
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James A King; Lucy K Wasse; David R Broom; David J Stensel |
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Publication Detail:
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Type: Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Medicine and science in sports and exercise Volume: 42 ISSN: 1530-0315 ISO Abbreviation: Med Sci Sports Exerc Publication Date: 2010 Mar |
Date Detail:
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Created Date: 2010-03-02 Completed Date: 2010-05-26 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8005433 Medline TA: Med Sci Sports Exerc Country: United States |
Other Details:
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Languages: eng Pagination: 485-92 Citation Subset: IM; S |
Affiliation:
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Loughborough University, UK. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adolescent Adult Appetite / physiology* Biological Markers Energy Intake* Ghrelin / blood, metabolism* Humans Male Physical Exertion Walking / physiology* Young Adult |
| Chemical | |
Reg. No./Substance:
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0/Biological Markers; 0/Ghrelin |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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