Alicia Fillon1, Kristine Beaulieu2, Maud Miguet3, Mélina Bailly3, Graham Finlayson2, Valérie Julian4, Julie Masurier5, Marie-Eve Mathieu6, Bruno Pereira7, Martine Duclos8, Yves Boirie8, David Thivel9. 1. Université Clermont Auvergne, AME2P, F-63000, Clermont-Ferrand, France; UGECAM Obesity Hospital, Clermont-Ferrand, France. Electronic address: fillonalicia@gmail.com. 2. School of Psychology, University of Leeds, Leeds, UK. 3. Université Clermont Auvergne, AME2P, F-63000, Clermont-Ferrand, France. 4. CHU, Clermont-Ferrand, France. 5. UGECAM Obesity Hospital, Clermont-Ferrand, France. 6. Department of Kinesiology, University of Montreal, 2100 Edouard-Montpetit, Montreal, H3C 3J7, Canada; Sainte-Justine UHC Research Center, 5757 Decelles, Montreal, H3T 1C5, Canada. 7. CHU, Biostatistics unit, Clermont-Ferrand, France. 8. Université Clermont Auvergne, AME2P, F-63000, Clermont-Ferrand, France; CHU, Clermont-Ferrand, France. 9. Université Clermont Auvergne, AME2P, F-63000, Clermont-Ferrand, France; School of Psychology, University of Leeds, Leeds, UK.
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. CLINICAL TRIALS: NCT03967782.
RCT Entities:
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. CLINICAL TRIALS: NCT03967782.