Food reward in active compared to inactive men: Roles for gastric emptying and body fat

DC FieldValueLanguage
dc.contributor.authorHorner, Katy M.-
dc.contributor.authorFinlayson, Graham-
dc.contributor.authorByrne, Nuala M.-
dc.contributor.authorKing, Neil A.- Elsevieren_US
dc.identifier.citationPhysiology and Behavioren_US
dc.description.abstractHabitual exercise could contribute to weight management by altering processes of food reward via the gut-brain axis. We investigated hedonic processes of food reward in active and inactive men and characterised relationships with gastric emptying and body fat. Forty-four men (active: n = 22; inactive: n = 22, BMI range 21-36 kg/m2; percent fat mass range 9-42%) were studied. Participants were provided with a standardised fixed breakfast and an ad libitum lunch meal 5 h later. Explicit liking, implicit wanting and preference among high-fat, low-fat, sweet and savoury food items were assessed immediately post-breakfast (fed state) and again pre-lunch (hungry state) using the Leeds Food Preference Questionnaire. Gastric emptying was assessed by 13C-octanoic acid breath test. Active individuals exhibited a lower liking for foods overall and a greater implicit wanting for low-fat savoury foods in the fed state, compared to inactive men. Differences in the fed state remained significant after adjusting for percent fat mass. Active men also had a greater increase in liking for savoury foods in the interval between breakfast and lunch. Faster gastric emptying was associated with liking for savoury foods and with an increase in liking for savoury foods in the postprandial interval. In contrast, greater implicit wanting for high-fat foods was associated with slower gastric emptying. These associations were independent of each other, activity status and body fat. In conclusion, active and inactive men differ in processes of food reward. The rate of gastric emptying may play a role in the association between physical activity status and food reward, via the gut-brain axis.en_US
dc.rightsThis is the author’s version of a work that was accepted for publication in Physiology and Behavior. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Physiology and Behavior (160 (2016))
dc.subjectWeight managementen_US
dc.subjectGut-brain axisen_US
dc.subjectGastric emptyingen_US
dc.subjectPhotic stimulationen_US
dc.subjectFood rewarden_US
dc.subjectFood preferencesen_US
dc.subjectPhysical activityen_US
dc.titleFood reward in active compared to inactive men: Roles for gastric emptying and body faten_US
dc.typeJournal Articleen_US
dc.statusPeer revieweden_US
dc.description.othersponsorshipQueensland University of Technology Postgraduate Research Award (QUTPRA)en_US
item.fulltextWith Fulltext-
Appears in Collections:Institute of Food and Health Research Collection
Public Health, Physiotherapy and Sports Science Research Collection
Files in This Item:
File Description SizeFormat 
Accepted Version_Liking Wanting GE_2016 (2).docx116.24 kBUnknownDownload
Show simple item record

Citations 50

Last Week
Last month
checked on Jun 17, 2019

Google ScholarTM



This item is available under the Attribution-NonCommercial-NoDerivs 3.0 Ireland. No item may be reproduced for commercial purposes. For other possible restrictions on use please refer to the publisher's URL where this is made available, or to notes contained in the item itself. Other terms may apply.