International Journal of Obesity (2001) 25, Suppl 2, S68±S73 ß 2001 Nature Publishing Group All rights reserved 0307±0565/01 $15.00 www.nature.com/ijo Track 5 Physical activity, exercise and sport P130 Results indicate that severely obese children and adolescents tend to be sedentary when they have the choice, i.e. afternoons after school and in the Prediction of energy expenditure in a whole body indirect calorimeter at weekends. Future obesity interventions on young people may need to place both low and high levels of physical activity particular emphasis on adolescents and try to promote weekend activity for L de Jonge1, T Nguyen1, S Smith1, J Zachwieja1, HRoy1, and G Bray1 adolescents and girls. 1Pennington Biomedical Research Center, 6400 Perkins Road, Baton Rouge LA. REFERENCE: 1: Cole, TJ, et al. (1995). Archive of Disease in Childhood. 73: 70808-4 124 USA. E-mail:
[email protected] 25±29 INTRODUCTION: In studies that involve the use of a room calorimeter, 24 h energy intake is often larger than 24 h energy expenditure (24-H EE), due to P132 limited space. The objective of this study was to develop a method for Role of non-exercise physical activity in body mass index predicting an individual's 24-H EE in a room calorimeter at both low and high levels of physical activity. M Yoshioka1, M Ayabe1, T Yahiro1, H Higuchi1, Y Higaki2, H Miyazaki3, METHODS: Two methods that predict an individual's 24-H EE in a metabolic H Yoshitake4, M Shindo1, and H Tanaka1 chamber are presented. The ®rst method was based on 3 components: 1) a 1Faculty