Background: Acute exercise has been shown to induce nutritional adaptations in obese and lean inactive youth but it remains unclear whether youth with a high level of physical activity experience such exercise-induced energy intake and appetite modifications. Methods: Fourteen (15-16 years old) male elite rugby players completed on three separate occasions: 1) a control session (CON); 2) an exercise session (EX); and 3) a rugby session (RUGBY). While the energy induced by the rugby and exercise session was matched (Polar Team2 pro technology), participants' energy intake, alimentary preferences (ad libitum buffet meals) and appetite feelings (Visual Analogue Scales) were assessed on the experimental days. Results: The energy ingested during lunch and snack time was not affected by conditions. Dinner time energy intake was significantly increased after RUBGY compared to CON by 969 ± 145 kcal and 777 ± 183 kcal (p<0.05), respectively. The energy ingested at dinner time was significantly increased during EX (1185 ± 199 kcal) compared to both CON (p<0.001) and RUGBY (p<0.01). None of the appetite feelings investigated was modified between sessions. Discussion and Conclusion: Adolescent elite rugby players regulate their energy intake differently depending on the nature of their training and independently of the energy expended, which underlines the needs for energetic and nutritional education to optimize their physical fitness and performances.
© Copyright 2014 The 3rd Wingate Congress of Exercise and Sport Sciences. Published by The Wingate Institute for Physical Education and Sport. All rights reserved.