Body composition prediction equations based on bioelectrical impedance and anthropometric variables for Japanese obese women

American Journal of Human Biology : the Official Journal of the Human Biology Council
K TanakaYoshiyuki Matsuura

Abstract

The tetrapolar bioelectrical impedance (BI) technique has been proposed as a convenient, valid approach to estimate body composition in normal, healthy adults. However, the validity of the BI technique for obese individuals is undetermined. The purpose of this study was to determine the validity of body composition estimated from the BI method when compared to underwater weighing with correction for residual volume, and to develop a convenient, useful equation that would sufficiently predict body composition of Japanese obese women. The order of assessing body composition was randomized for each subject. The subjects were 75 moderately or mildly obese women with a body fat content of 25.1-60.1%, aged 18-68 years. Among 12 independent variables which were arbitrarily selected as possible predictors of hydrodensitometrically determined body density (Db), BM Z/S(2) was the best predictor (r = 0.803, n = 53), where BM = body mass (kg), Z = impedance (ohms), and S = stature (cm). When chronological age was added in a multiple regression analysis, Db was derived with higher accuracy (r = 0.878) with an SEE of 0.0064 g/cm(3) . The linear multiple regression equation constructed for predicting the Db was, for instance, Db = 1.1171 - 0....Continue Reading

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Citations

Jun 1, 2005·International Journal of Obesity : Journal of the International Association for the Study of Obesity·T OkuraK Tanaka
Dec 27, 2005·Circulation Journal : Official Journal of the Japanese Circulation Society·Ryosuke ShigematsuKiyoji Tanaka
Oct 4, 2006·Journal of Physiological Anthropology·Toshiro SatoYoshiki Kobayashi
Apr 20, 2004·Obesity Research·Kiyoji TanakaKeisuke Yamabuki
Jan 5, 2008·Journal of Physiological Anthropology·Toshiro SatoYoshiki Kobayashi
Jul 1, 1996·Applied Human Science : Journal of Physiological Anthropology·K Tanaka, T Nakanishi
Jul 1, 1997·Applied Human Science : Journal of Physiological Anthropology·M S Lee, K Tanaka
Sep 6, 2007·The Tohoku Journal of Experimental Medicine·Shin-ichi Demura, Susumu Sato
May 1, 1996·Applied Human Science : Journal of Physiological Anthropology·M S LeeW Chodzko-Zaiko
Jul 1, 1999·Applied Human Science : Journal of Physiological Anthropology·S DemuraT Murase

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