Contributing factors and variability of energy expenditure in non-obese, obese, and post-obese adolescents
| Autor: | Nicole Fellmann, Stefano Lazzer, Jean Coudert, A Bitar, J. Ribeyre, Michel Vermorel, Yves Boirie, Martine Meyer, Christophe Montaurier |
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| Přispěvatelé: | Centre de Recherche en Nutrition Humaine Auvergne [CHU Clermont-Ferrand] (CRNH A), Direction de la recherche clinique et de l’innovation [CHU Clermont-Ferrand] (DRCI), CHU Clermont-Ferrand-CHU Clermont-Ferrand |
| Rok vydání: | 2005 |
| Předmět: |
Male
Embryology medicine.medical_specialty Adolescent 030309 nutrition & dietetics [SDV]Life Sciences [q-bio] Energy balance physical activity Medicine (miscellaneous) 030209 endocrinology & metabolism Physical exercise Growth Weight Gain 03 medical and health sciences 0302 clinical medicine Internal medicine medicine Humans Obesity Exercise physiology [SDV.BDD]Life Sciences [q-bio]/Development Biology Exercise ComputingMilieux_MISCELLANEOUS thermoregulation 0303 health sciences business.industry [SDV.BDLR]Life Sciences [q-bio]/Reproductive Biology Thermoregulation medicine.disease Endocrinology Reproductive Medicine Energy expenditure Basal metabolic rate basal metabolic rate Body Composition Female Animal Science and Zoology Basal Metabolism Specific dynamic action Energy Metabolism business [SDV.AEN]Life Sciences [q-bio]/Food and Nutrition Body Temperature Regulation Developmental Biology Food Science Demography |
| Zdroj: | Reproduction Nutrition Development Reproduction Nutrition Development, EDP Sciences, 2005, 45 (2), pp.129-142. ⟨10.1051/rnd:2005014⟩ |
| ISSN: | 1297-9708 0926-5287 |
| Popis: | International audience; Energy expenditure (EE) is a major determinant of energy balance and body composition. The objectives of this paper were to review the contributing factors of the main components of daily EE (DEE) and the inter-individual variability in these components in non-obese (NOb), obese (Ob), and post-obese (POb) adolescents. Body composition especially fat-free mass (FFM), is the major determinant of the basal metabolic rate which contributes 50-70% of DEE, whereas fat mass (FM) is a significant factor only in obese subjects. Physical activity is the second main variation factor of DEE, whereas growth, the thermic effect of food, and thermoregulation are generally of marginal importance. The energy costs and EE associated with various sedentary and physical activities were assessed in NOb, Ob and POb subjects both in standardised and in free-living conditions. The inter-individual variability of DEE is high, even after adjustment for body composition, mainly because of great differences in time devoted to the various physical activities. DEE and EE associated with sleep and sedentary activities are significantly higher in Ob than in NOb, but not after adjustment for FFM. On the contrary, EE associated with physical activities is not significantly different between Ob and NOb adolescents, but 61% lower in Ob subjects after adjustment for body composition. Multidisciplinary weight-reduction programmes including moderate energy restriction and physical training result in great FM loss, maintenance of FFM, improvement of physical capacities, but reductions in organ and tissue metabolic rate and in EE associated with the various sedentary and physical activities, which may favour body weight regain in the less active POb subjects. |
| Databáze: | OpenAIRE |
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