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Does exercising before or after a meal affect energy balance in adolescents with obesity?

Abstract : Background and aim: Exercise timing has been suggested to affect appetite and energy intake (EI). The aim of this study was to examine the impact of exercising immediately before or after a meal on EI, appetite sensations and food reward (FR) in adolescents with obesity. Methods and results: Seventeen adolescents with obesity completed 3 experimental sessions (randomized controlled trial): rest + lunch (CON); exercise + lunch (EX-MEAL); lunch + exercise (MEAL-EX). The exercise consisted of cycling 30 min at 65%V̇O2peak. Outcomes included ad libitum EI (weighed lunch and dinner), FR (Leeds Food Preference Questionnaire at pre- and post-combination of exercise/rest and lunch, and pre-dinner) and appetite sensations (visual analogue scales). EI was not different between conditions. Compared with CON, relative EI at lunch was lower in EX-MEAL and MEAL-EX (p ≤ 0.05) and daily only in MEAL-EX (p < 0.01). Postprandial fullness was higher in EX-MEAL compared to CON. Compared with CON, both EX-MEAL and MEAL-EX attenuated the increase in wanting for sweet food and reduced explicit liking for fat. Conclusions: These preliminary results suggest that exercising immediately before or after a meal produce few differences in appetite and have small beneficial effects on overall energy balance in adolescents with obesity, as well as on FR.
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https://hal.uca.fr/hal-03013131
Contributor : David Thivel <>
Submitted on : Wednesday, November 18, 2020 - 6:55:18 PM
Last modification on : Thursday, November 26, 2020 - 2:26:03 PM

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David Thivel, Alicia Fillon, Kristine Beaulieu, Maud Miguet, Mélina Bailly, et al.. Does exercising before or after a meal affect energy balance in adolescents with obesity?. Nutrition, Metabolism and Cardiovascular Diseases, Elsevier, 2020, 30 (7), pp.1196-1200. ⟨10.1016/j.numecd.2020.04.015⟩. ⟨hal-03013131⟩

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