Consistency of metabolic responses and appetite sensations under postabsorptive and postprandial conditions

Javier T. Gonzalez, Rachel C. Veasey, Penny L. S. Rumbold, Emma J. Stevenson

Research output: Contribution to journalArticle

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Abstract

The present study aimed to investigate the reliability of metabolic and subjective appetite responses under fasted conditions and following consumption of a cereal-based breakfast. Twelve healthy, physically active males completed two postabsorption (PA) and two postprandial (PP) trials in a randomised order. In PP trials a cereal based breakfast providing 1859 kJ of energy was consumed. Expired gas samples were used to estimate energy expenditure and fat oxidation and 100mm visual analogue scales were used to determine appetite sensations at baseline and every 30 min for 120 min. Reliability was assessed using limits of agreement, coefficient of variation (CV), intraclass coefficient of correlation and 95% confidence limits of typical error. The limits of agreement and typical error were 292.0 and 105.5 kJ for total energy expenditure, 9.3 and 3.4 g for total fat oxidation and 22.9 and 8.3mm for time-averaged AUC for hunger sensations, respectively over the 120 min period in the PP trial. The reliability of energy expenditure and appetite in the 2h response to a cereal-based breakfast would suggest that an intervention requires a 211 kJ and 16.6mm difference in total postprandial energy expenditure and time-averaged hunger AUC to be meaningful, fat oxidation would require a 6.7 g difference which may not be sensitive to most meal manipulations.
LanguageEnglish
Pages228-233
JournalAppetite
Volume59
Issue number2
DOIs
StatusPublished - Oct 2012

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Appetite
Energy Metabolism
Breakfast
Hunger
Fats
Area Under Curve
Postprandial Period
Visual Analog Scale
Meals
Gases
Edible Grain

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Consistency of metabolic responses and appetite sensations under postabsorptive and postprandial conditions. / Gonzalez, Javier T.; Veasey, Rachel C.; Rumbold, Penny L. S.; Stevenson, Emma J.

In: Appetite, Vol. 59, No. 2, 10.2012, p. 228-233.

Research output: Contribution to journalArticle

Gonzalez, Javier T. ; Veasey, Rachel C. ; Rumbold, Penny L. S. ; Stevenson, Emma J./ Consistency of metabolic responses and appetite sensations under postabsorptive and postprandial conditions. In: Appetite. 2012 ; Vol. 59, No. 2. pp. 228-233
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