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Comparisons of body-composition prediction accuracy: a study of 2 bioelectric impedance consumer devices in healthy Chinese persons using DXA and MRI as criteria methods.

Authors :
Xu L
Cheng X
Wang J
Cao Q
Sato T
Wang M
Zhao X
Liang W
Source :
Journal of clinical densitometry : the official journal of the International Society for Clinical Densitometry [J Clin Densitom] 2011 Oct-Dec; Vol. 14 (4), pp. 458-64. Date of Electronic Publication: 2011 Aug 10.
Publication Year :
2011

Abstract

We compared the accuracy of body-composition estimation for 2 commercial single-frequency bioelectric impedance analysis (BIA) devices in 200 healthy Chinese adults using magnetic resonance imaging (MRI) and dual-energy X-ray absorptiometry (DXA) as criterion methods. We evaluated the fat mass percentage (%FM), skeletal muscle mass percentage (%SM), or total-body bone-free lean mass percentage (%TBBLM), and level of visceral fat mass (VF(level)) using the Omron HBF-359 (SF-BIA8) and Tanita BC-532 (SF-BIA4) BIA devices, MRI, and DXA. Both devices showed a similarly high correlation with DXA for %FM prediction (r=0.89 for SF-BIA8 and 0.90 for SF-BIA4) and with MRI and DXA for %SM and %TBBLM prediction (r=0.85 for SF-BIA8 and 0.89 for SF-BIA4). There were small but significant biases in all body-composition parameter evaluations except for %SM assessed by the SF-BIA8. Both the SF-BIA8 and SF-BIA4 provided small, insignificant mean biases but wide limits of agreement with MRI for VF(level) assessments. Both BIA devices can relatively accurately predict %FM and %SM in healthy Chinese adults. The SF-BIA8 is suitable for individual prediction of %SM, whereas the SF-BIA8 is required to eliminate systematic errors in this population by improving population-specific prediction equations from height, weight, and age to increase estimation accuracy.<br /> (Copyright © 2011. Published by Elsevier Inc.)

Details

Language :
English
ISSN :
1094-6950
Volume :
14
Issue :
4
Database :
MEDLINE
Journal :
Journal of clinical densitometry : the official journal of the International Society for Clinical Densitometry
Publication Type :
Academic Journal
Accession number :
21835660
Full Text :
https://doi.org/10.1016/j.jocd.2011.04.001