The effect of post-exercise drink macronutrient content on appetite and energy intake

Clayton, DJ ORCID: https://orcid.org/0000-0001-5481-0891, Stensel, DJ, Watson, P and James, LJ, 2014. The effect of post-exercise drink macronutrient content on appetite and energy intake. Appetite, 82, pp. 173-179. ISSN 0195-6663

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Abstract

Carbohydrate and protein ingestion post-exercise are known to facilitate muscle glycogen resynthesis and protein synthesis, respectively, but the effects of post-exercise nutrient intake on subsequent appetite are unknown. This study aimed to investigate whether protein induced satiety that has been reported at rest was still evident when pre-loads were consumed in a post-exercise context. Using a randomized, double blind, crossover design, 12 unrestrained healthy males completed 30 min of continuous cycling exercise at ~60% VO2peak, followed by five, 3 min intervals at ~85% VO2peak. Ten min post-exercise, subjects consumed 500 ml of either a low energy placebo (15 kJ) (PLA); a 6% whey protein isolate drink (528 kJ) (PRO); or a 6% sucrose drink (528 kJ) (CHO). Sixty min after drink ingestion, a homogenous ad-libitum pasta lunch was provided and energy intake at this lunch was quantified. Subjective appetite ratings were measured at various stages of the protocol. Energy consumed at the ad-libitum lunch was lower after PRO (5831 ± 960 kJ) than PLA (6406 ± 492 kJ) (P<0.05), but not different between CHO (6111 ± 901 kJ) and the other trials (P>0.315). Considering the post-exercise drink, total energy intake was not different between trials (P=0.383). There were no differences between trials for any of the subjective appetite ratings. The results demonstrate that where post-exercise liquid protein ingestion may enhance the adaptive response of skeletal muscle, and this may be possible without affecting gross energy intake relative to consuming a low energy drink.

Item Type:	Journal article
Publication Title:	Appetite
Creators:	Clayton, D.J., Stensel, D.J., Watson, P. and James, L.J.
Publisher:	Elsevier
Date:	1 November 2014
Volume:	82
ISSN:	0195-6663
Identifiers:	Number Type 10.1016/j.appet.2014.07.013 DOI S0195666314003705 Publisher Item Identifier
Divisions:	Schools > School of Science and Technology
Record created by:	Jonathan Gallacher
Date Added:	24 Oct 2017 09:19
Last Modified:	24 Oct 2017 09:19
URI:	https://irep.ntu.ac.uk/id/eprint/31859

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