Are Post-Exercise Appetite Sensations and Energy Intake Coupled in Children and Adolescents?
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- Thivel, D. & Chaput, JP. Sports Med (2014) 44: 735. doi:10.1007/s40279-014-0160-3
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The effect of physical activity on energy balance is not restricted to its induced energy expenditure but also affects the control of energy intake and appetite. Although it is now clear that physical exercise affects subsequent energy intake and appetite, the mechanisms involved remain uncertain. Most previous studies have assessed both post-exercise energy intake and appetite but mainly focussed their analyses on food consumption, and it remains unclear whether changes in appetite provide an accurate reflection of changes in energy intake. This brief review aims to analyse conjointly the effective energy intake and appetite sensation responses to acute exercise in children and adolescents to examine whether or not these responses to exercise are coupled. After an overview of the available literature, we conclude that acute exercise has an uncoupling effect on energy intake and appetite sensations in both lean and overweight/obese youth. Although methodological issues between studies can be highlighted, lack of consideration of inter-individual variability in terms of energy intake and appetite could be one of the main explanations for such a conclusion. It now appears necessary to further consider the impact of acute exercise and then chronic physical activity on an individual basis in the regulation of energy balance to prescribe successful weight loss programmes.