Effect of breakfast omission on subjective appetite, metabolism, acylated ghrelin and GLP-17-36 during rest and exercise

Clayton, D.J. ORCID: 0000-0001-5481-0891, Stensel, D.J. and James, L.J., 2016. Effect of breakfast omission on subjective appetite, metabolism, acylated ghrelin and GLP-17-36 during rest and exercise. Nutrition, 32 (2), pp. 179-185. ISSN 0899-9007

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Breakfast omission induces compensatory eating behaviour at lunch, but often reduces daily energy intake. This study investigated the effect of breakfast omission on within-day subjective appetite, energy expenditure, substrate utilisation and appetite hormone profiles, in response to standardised feeding and exercise. Eight male, habitual breakfast eaters completed two randomised trials. Subjects arrived overnight fasted (0h), and either consumed (BC) or omitted (BO) a standardised breakfast (Mean (SD) (3085 (217) kJ). Lunch (4162 (510) kJ) and dinner (4914 (345) kJ) were provided at 4.5 and 10 h, respectively and subjects performed 60 min fixed-intensity cycling (50% VO 2 peak) at 8h. Blood samples were collected at 0, 4.5, 6 and 8 h, with expired air and subjective appetite sensations (hunger, fullness, desire to eat (DTE) and prospective food consumption (PFC)) collected throughout. Heart rate and perceived exertion were m easured during exercise. Hunger, DTE and PFC were greater and fullness lower during BO (P<0.05) between breakfast and lunch, with no differences after lunch (P>0.193). Resting energy expenditure was greater at 2.5 h during BC (P<0.05) with no other differences between trials (P>0.156). GLP-1 7-36 was greater (P<0.05) and acylated ghrelin tended to be greater (P=0.078) at 4.5 h during BC. Heart rate was greater on BO (P<0.05) during exercise. The results of this laboratory-controlled study suggest that the effects of breakfast omission are transient and do not extend beyond lunch, even when the negative energy balance created by breakfast omission is sustained via standardised feeding and exercise.

Item Type: Journal article
Publication Title: Nutrition
Creators: Clayton, D.J., Stensel, D.J. and James, L.J.
Publisher: Elsevier
Date: February 2016
Volume: 32
Number: 2
ISSN: 0899-9007
S0899900715002841Publisher Item Identifier
Divisions: Schools > School of Science and Technology
Record created by: Linda Sullivan
Date Added: 23 Oct 2017 11:09
Last Modified: 23 Oct 2017 11:09
URI: https://irep.ntu.ac.uk/id/eprint/31848

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