Validation of a bioelectrical impedance analysis system for body composition assessment in patients with COPD

• DOI: 10.1590/s1806-37562017000000121
• Publication Date: 2018-10-10T16:49:37Z
• Authors: Fernanda Rodrigue...; Manuela Karloh; Cintia Laura Pere...; Cardine Martins d...; Anamaria Fleig Mayer
• Keywords: Bioelectrical Impedance Analysis; Fat free mass

ABSTRACT Objective: To investigate the validity of an eight-contact electrode bioelectrical impedance analysis (BIA) system within a household scale for assessing whole body composition in COPD patients. Methods: Seventeen patients with (mean age = 67 ± 8 years; mean FEV1 38.6 16.1% predicted; and mass index 24.7 5.4 kg/m2) underwent dual-energy X-ray absorptiometry (DEXA) BIA assessment. Results: There was strong inter-method correlation fat (r 0.95), fat-free 0.93), lean but moderate bone mineral content 0.73; p < 0.01 all). In agreement analysis, values between DEXA differed by only 0.15 kg (−6.39 to 6.70 kg), 0.26 (−5.96 6.49 −0.13 (−0.76 0.50 −0.55 (−6.71 5.61 kg) mass, content, respectively. Conclusions: The showed be valid tool assessment our sample COPD.