Body composition and resting metabolic rate in obese adolescents

Objective: Analyze body composition and resting metabolic rate (RMR) in obese adolescents. Methods: 58 obese adolescents were assessed between 12 and 16 years (13.7 ± 1.2 years). The body composition was measured dual-energy x-ray absorptiometry (DEXA). The resting metabolic rate and oxidation of gl...

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Main Authors: Bruno A. P. de Oliveira, Camila B. Gardim, Carolina N. Ferreira, Suziane U. Cayres, Ismael F. Freitas Junior
Format: Article
Language:Portuguese
Published: Universidade de São Paulo 2015-12-01
Series:Medicina
Subjects:
Online Access:http://www.revistas.usp.br/rmrp/article/view/108153
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author Bruno A. P. de Oliveira
Camila B. Gardim
Carolina N. Ferreira
Suziane U. Cayres
Ismael F. Freitas Junior
author_facet Bruno A. P. de Oliveira
Camila B. Gardim
Carolina N. Ferreira
Suziane U. Cayres
Ismael F. Freitas Junior
author_sort Bruno A. P. de Oliveira
collection DOAJ
description Objective: Analyze body composition and resting metabolic rate (RMR) in obese adolescents. Methods: 58 obese adolescents were assessed between 12 and 16 years (13.7 ± 1.2 years). The body composition was measured dual-energy x-ray absorptiometry (DEXA). The resting metabolic rate and oxidation of glucose and lipids were determined by measuring the oxygen consumption and the production of carbon dioxide. Student t test was used for independent data, multiple linear regression and Pearson correlation, significance was set p <5%. Results: Significant differences were observed in the percentage of body fat (p = 0.01), percentage of lean body mass (LBM) (p = 0.01), percentage body fat (p = 0.01), lower limb lean mass (p = 0.01) and resting metabolic rate (p = 0.04) between males and females. The LBM is highlighted as the best predictor of RMR (p = 0.01). There was a positive correlation between RMR and LBM, as observed association between lipid oxidation and LBM. Conclusion: Total body composition and segment influence the resting metabolic rate and substrate oxidation. In addition, the LBM can be considered a factor of increased resting energy expenditure in obese adolescents.
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spelling doaj.art-0c692573ba254aee830fb17f25ba191e2022-12-21T17:17:41ZporUniversidade de São PauloMedicina0076-60462176-72622015-12-0148410.11606/issn.2176-7262.v48i4p359-366Body composition and resting metabolic rate in obese adolescentsBruno A. P. de OliveiraCamila B. GardimCarolina N. FerreiraSuziane U. CayresIsmael F. Freitas JuniorObjective: Analyze body composition and resting metabolic rate (RMR) in obese adolescents. Methods: 58 obese adolescents were assessed between 12 and 16 years (13.7 ± 1.2 years). The body composition was measured dual-energy x-ray absorptiometry (DEXA). The resting metabolic rate and oxidation of glucose and lipids were determined by measuring the oxygen consumption and the production of carbon dioxide. Student t test was used for independent data, multiple linear regression and Pearson correlation, significance was set p <5%. Results: Significant differences were observed in the percentage of body fat (p = 0.01), percentage of lean body mass (LBM) (p = 0.01), percentage body fat (p = 0.01), lower limb lean mass (p = 0.01) and resting metabolic rate (p = 0.04) between males and females. The LBM is highlighted as the best predictor of RMR (p = 0.01). There was a positive correlation between RMR and LBM, as observed association between lipid oxidation and LBM. Conclusion: Total body composition and segment influence the resting metabolic rate and substrate oxidation. In addition, the LBM can be considered a factor of increased resting energy expenditure in obese adolescents.http://www.revistas.usp.br/rmrp/article/view/108153Obesity. Adolescent. Energy metabolism. Body composition.
spellingShingle Bruno A. P. de Oliveira
Camila B. Gardim
Carolina N. Ferreira
Suziane U. Cayres
Ismael F. Freitas Junior
Body composition and resting metabolic rate in obese adolescents
Medicina
Obesity. Adolescent. Energy metabolism. Body composition.
title Body composition and resting metabolic rate in obese adolescents
title_full Body composition and resting metabolic rate in obese adolescents
title_fullStr Body composition and resting metabolic rate in obese adolescents
title_full_unstemmed Body composition and resting metabolic rate in obese adolescents
title_short Body composition and resting metabolic rate in obese adolescents
title_sort body composition and resting metabolic rate in obese adolescents
topic Obesity. Adolescent. Energy metabolism. Body composition.
url http://www.revistas.usp.br/rmrp/article/view/108153
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