Total body water in health and disease: Have anthropometric equations any meaning?

Nephrology, Dialysis, Transplantation : Official Publication of the European Dialysis and Transplant Association - European Renal Association
Carlo BasileBiagio R Di Iorio

Abstract

The accurate measurement of total body water (TBW) requires isotopic dilution techniques that are not easily applicable to the clinical setting. Therefore, indirect methods of estimating TBW are commonly employed, such as bioelectrical impedance analysis (BIA) and anthropometry. In the human body, >90% of the measured impedance is composed of resistance (R). The aim of the present study was to compare TBW estimated by means of two anthropometric equations (by Watson and Hume) with TBW obtained by BIA (equations proposed by Sun et al.) in a group of white disease-free individuals (n = 3625, 1860 men and 1765 women) and white haemodialysis (HD) patients (n = 688, 443 men and 245 women). They underwent one single-frequency BIA measurement, on the nondominant side of the body, injecting an 800-muA and 50-kHz alternating sinusoidal current with a standard tetrapolar technique. The BIA variable measured was R. Among them, a selection of disease-free individuals (n = 481) and HD patients (n = 270), pair-matched by age, body weight and height, after stratification by gender, was made. When comparing the four pair-matched groups, it was found that (1) TBW was not different (disease-free men versus HD men; disease-free women versus HD wo...Continue Reading

Citations

Aug 14, 2012·Clinical and Experimental Nephrology·G Martínez FernándezJuan Pérez-Martínez
Dec 29, 2015·Nefrología : publicación oficial de la Sociedad Española Nefrologia·Gonzalo Martínez FernándezJuan Pérez Martínez
Mar 13, 2012·Journal of Renal Nutrition : the Official Journal of the Council on Renal Nutrition of the National Kidney Foundation·Yasushi OhashiAtsushi Aikawa
Nov 21, 2009·Clinical Nutrition : Official Journal of the European Society of Parenteral and Enteral Nutrition·Hoda Y TomoumKhadija M Alian

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