POTENTIAL ERRORS IN THE APPLICATION OF MIXTURE THEORY TO MULTIFREQUENCY BIOELECTRICAL-IMPEDANCE ANALYSIS

Authors
WARD LC ELIA M CORNISH BH
Citation
Lc. Ward et al., POTENTIAL ERRORS IN THE APPLICATION OF MIXTURE THEORY TO MULTIFREQUENCY BIOELECTRICAL-IMPEDANCE ANALYSIS, Physiological measurement, 19(1), 1998, pp. 53-60
Citations number
22
Categorie Soggetti
Engineering, Biomedical",Physiology
Journal title
Physiological measurement → ACNP
ISSN journal
09673334
Volume
19
Issue
1
Year of publication
1998
Pages
53 - 60
Database
ISI
SICI code
0967-3334(1998)19:1<53:PEITAO>2.0.ZU;2-M
Abstract
Potential errors in the application of mixture theory to the analysis of multiple-frequency bioelectrical impedance data for the determinati on of body fluid volumes are assessed. Potential sources of error incl ude: conductive length; tissue fluid resistivity; body density; weight and technical errors of measurement. Inclusion of inaccurate estimate s of body density and weight introduce errors of typically < +/-3% but incorrect assumptions regarding conductive length or fluid resistivit ies may each incur errors of up to 20%.