Data/hora: 09/06/2024 06:17:05

Provedor de dados: 	Brazilian Journal of Medical and Biological Research	
País: 	Brazil	
Título: 	Body composition measures of obese adolescents by the deuterium oxide dilution method and by bioelectrical impedance	
Autores: 	Resende,C.M.M.; Camelo Júnior,J.S.; Vieira,M.N.C.M.; Ferriolli,E.; Pfrimer,K.; Perdoná,G.S.C.; Monteiro,J.P.	
Data: 	2011-11-01	
Ano: 	2011	
Palavras-chave: 	Adolescents; Obesity; Body composition; Bioelectrical impedance; Deuterium oxide dilution method.	
Resumo: 	The objectives of the present study were to describe and compare the body composition variables determined by bioelectrical impedance (BIA) and the deuterium dilution method (DDM), to identify possible correlations and agreement between the two methods, and to construct a linear regression model including anthropometric measures. Obese adolescents were evaluated by anthropometric measures, and body composition was assessed by BIA and DDM. Forty obese adolescents were included in the study. Comparison of the mean values for the following variables: fat body mass (FM; kg), fat-free mass (FFM; kg), and total body water (TBW; %) determined by DDM and by BIA revealed significant differences. BIA overestimated FFM and TBW and underestimated FM. When compared with data provided by DDM, the BIA data presented a significant correlation with FFM (r = 0.89; P &lt; 0.001), FM (r = 0.93; P &lt; 0.001) and TBW (r = 0.62; P &lt; 0.001). The Bland-Altman plot showed no agreement for FFM, FM or TBW between data provided by BIA and DDM. The linear regression models proposed in our study with respect to FFM, FM, and TBW were well adjusted. FFM obtained by DDM = 0.842 x FFM obtained by BIA. FM obtained by DDM = 0.855 x FM obtained by BIA + 0.152 x weight (kg). TBW obtained by DDM = 0.813 x TBW obtained by BIA. The body composition results of obese adolescents determined by DDM can be predicted by using the measures provided by BIA through a regression equation.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2011001100013	
Editor: 	Associação Brasileira de Divulgação Científica	
Relação: 	10.1590/S0100-879X2011007500122	
Formato: 	text/html	
Fonte: 	Brazilian Journal of Medical and Biological Research  v.44 n.11 2011	
Fonte: 	info:eu-repo/semantics/openAccess