Year-end Sale % OFF 
Abstract
BackgroundPhysical exercise can modify subsequent energy intake and appetite and may thus be of particular interest in terms of obesity treatment. However, it is still unclear whether an intensive bout of exercise can affect the energy consumption of obese children and adolescents.ObjectiveTo compare the impact of high vs. moderate intensity exercises on subsequent 24-h energy intake, macronutrient preferences, appetite sensations, energy expenditure and balance in obese adolescent.DesignThis randomized cross-over trial involves 15 obese adolescent boys who were asked to randomly complete three 24-h sessions in a metabolic chamber, each separated by at least 7 days: (1) sedentary (SED); (2) Low-Intensity Exercise (LIE) (40% maximal oxygen uptake, VO2max); (3) High-Intensity Exercise (HIE) (75%VO2max).ResultsDespite unchanged appetite sensations, 24-h total energy intake following HIE was 6–11% lower compared to LIE and SED (p<0.05), whereas no differences appeared between SED and LIE. Energy intake at lunch was 9.4% and 8.4% lower after HIE compared to SED and LIE, respectively (p<0.05). At dinner time, it was 20.5% and 19.7% lower after HIE compared to SED and LIE, respectively (p<0.01). 24-h energy expenditure was not significantly altered. Thus, the 24-h energy balance was significantly reduced during HIE compared to SED and LIE (p<0.01), whereas those of SED and LIE did not differ.ConclusionsIn obese adolescent boys, HIE has a beneficial impact on 24-h energy balance, mainly due to the spontaneous decrease in energy intake during lunch and dinner following the exercise bout. Prescribing high-intensity exercises to promote weight loss may therefore provide effective results without affecting appetite sensations and, as a result, food frustrations.Trial RegistrationClinicalTrial.gov NCT01036360
Highlights
Since obesity in children and adolescents is a public health concern, the search for effective anti-obesity measures has grown in recent years
Despite unchanged appetite sensations, 24-h total energy intake following high-intensity exercise (HIE) was 6–11% lower compared to low-intensity exercise (LIE) and SED (p,0.05), whereas no differences appeared between SED and LIE
Energy intake at lunch was 9.4% and 8.4% lower after HIE compared to SED and LIE, respectively (p,0.05)
Summary
Since obesity in children and adolescents is a public health concern, the search for effective anti-obesity measures has grown in recent years. Obese adolescents have been shown to significantly reduce their energy intake during lunch and dinner after a single bout of high-intensity cycling (70% VO2max), whereas appetite sensations were similar to the resting control session [12]. Physical exercise can modify subsequent energy intake and appetite and may be of particular interest in terms of obesity treatment. It is still unclear whether an intensive bout of exercise can affect the energy consumption of obese children and adolescents
Sign-in/Register to view highlights & summary 
Published Version (
Free)
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
