HOME > EDICIONES > Año 2005, Volumen 55 - Número 2
Trabajos de Investigación
Análise comparativa de métodos de avaliação da composição corporal em homens sadios e em pacientes com doença pulmonar obstrutiva crônica: antropometria, impedância bioelétrica e absortiometria de raios-X de dupla energia
Ismael Forte Freitas Júnior, Sérgio Alberto Rupp de Paiva, Irma de Godoy, Suhaila Mahmoud Smaili Santos, Álvaro Oscar Campana
Faculdade de Ciências e Tecnologia de Presidente Prudente, Universidade Estadual Paulista (UNESP), Presidente Prudente, Brasil, Faculdade de Medicina de Botucatu, Universidade Estadual Paulista (UNESP), Botucatu, Brasil, Universidade Estadual de Londrina (UEL), Londrina, Brasil
Este estudo foi parcialmente financiado pelo Curso de Pós-Graduação de Fisiopatologia em Clínica Médica - Faculdade de Medicina de Botucatu - UNESP
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SUMMARY
Comparative analysis of body composition assessment methods in healthy men and in chronic obstructive pulmonary disease patients: anthropometry, bioelectrical impedance and dual-energy X-ray absorptiometry
The aim of this study was to examine the agreement between the results of body fat (BF and BF%), fat-free mass (FFM) and FFM index (FFMI= FFM/height²) as estimated by skinfold anthropometry (ANT), bioelectrical impedance (BIA) and dual-energy X-ray absorptiometry (DXA) in two groups of men (³ 50 y), one comprising healthy individuals (n=23) and the other, patients with chronic obstructive pulmonary disease (COPD) (n=24). Comparisons between body composition techniques were done by repeated measures ANOVA; the Bland & Altman procedure was used to analyse agreement. Results and Conclusions: 1) comparison between healthy and COPD groups showed significant differences between all studied variables; 2) in the healthy group, values for BF, BF% , FFM and FFMI were not significantly different when BIA or ANT was compared to DXA; however, in COPD, values for BF and BF% were significantly higher and for FFM and FFMI significantly lower when BIA was compared to DXA; in contrast, no differences were shown between values for these variables when ANT was compared with DXA; 3) Bland & Altman test, in both groups, showed no agreement between BIA and DXA and between ANT and DXA; it was also shown that body fat was overestimated and fat free mass underestimated by BIA in relation to DXA.
Key words: Bioelectric impedance, dual energy X-ray absorptiometry, anthropometry, fat-free mass, fat mass, COPD.
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PRIVACIDAD | ACCESIBILIDAD
ALAN-VE ISSN 0004-0622 - Depósito Legal: pp 199602DF83
Sociedad Latinoamericana de Nutrición
Producción editorial en Venezuela: Capítulo Venezolano - RIF: J-30843129-0
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