Whey protein consumption after resistance exercise reduces energy intake at a post-exercise mealReport as inadecuate




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European Journal of Nutrition

pp 1–8

First Online: 10 November 2016Received: 28 July 2016Accepted: 29 October 2016

Abstract

PurposeProtein consumption after resistance exercise potentiates muscle protein synthesis, but its effects on subsequent appetite in this context are unknown. This study examined appetite and energy intake following consumption of protein- and carbohydrate-containing drinks after resistance exercise.

MethodsAfter familiarisation, 15 resistance training males age 21 ± 1 years, body mass 78.0 ± 11.9 kg, stature 1.78 ± 0.07 m completed two randomised, double-blind trials, consisting of lower-body resistance exercise, followed by consumption of a whey protein PRO 23.9 ± 3.6 g protein or dextrose CHO 26.5 ± 3.8 g carbohydrate drink in the 5 min post-exercise. An ad libitum meal was served 60 min later, with subjective appetite measured throughout. Drinks were flavoured and matched for energy content and volume. The PRO drink provided 0.3 g-kg body mass protein.

ResultsAd libitum energy intake PRO 3742 ± 994 kJ; CHO 4172 ± 1132 kJ; P = 0.007 and mean eating rate PRO 339 ± 102 kJ-min; CHO 405 ± 154 kJ-min; P = 0.009 were lower during PRO. The change in eating rate was associated with the change in energy intake R = 0.661, P = 0.007. No interaction effects were observed for subjective measures of appetite. The PRO drink was perceived as creamier and thicker, and less pleasant, sweet and refreshing P < 0.05.

ConclusionThese results suggest whey protein consumption after resistance exercise reduces subsequent energy intake, and this might be partially mediated by a reduced eating rate. Whilst this reduced energy intake is unlikely to impair hypertrophy, it may be of value in supporting an energy deficit for weight loss.

KeywordsAppetite Energy balance Weight management Protein synthesis Anabolism Body composition  Download fulltext PDF



Author: Alistair Monteyne - Alex Martin - Liam Jackson - Nick Corrigan - Ellen Stringer - Jack Newey - Penny L. S. Rumbold - Emma

Source: https://link.springer.com/



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