两种生物电阻抗分析模型用于儿童全身水测量的比较。

Comparison of two bioelectrical impedance analysis models for total body water measurement in children.

作者信息

Danford L C, Schoeller D A, Kushner R F

机构信息

Clinical Nutrition Research Unit, University of Chicago, Illinois.

出版信息

Ann Hum Biol. 1992 Nov-Dec;19(6):603-7. doi: 10.1080/03014469200002422.

DOI:10.1080/03014469200002422

PMID:1476416

Abstract

We compared two bioelectrical impedance analysis models, the right-sided tetrapolar method and an experimental cylindrical method, to total body water (TBW) determined by isotopic dilution in 37 prepubertal children aged 5-9 years, who were divided into development and cross-validation groups. Despite its theoretical advantage, no improvement in predicted TBW was seen with the experimental method. The best predictive equation, using the tetrapolar method, was TBW (kg) = 1.84 + 0.45 (height square/resistance) +0.11(weight); r2 = 0.98; SEE = 0.62 kg.

摘要

我们比较了两种生物电阻抗分析模型，即右侧四极法和一种实验性圆柱法，与通过同位素稀释法测定的37名5至9岁青春期前儿童的全身水（TBW），这些儿童被分为发育组和交叉验证组。尽管实验方法具有理论优势，但预测的TBW并没有改善。使用四极法的最佳预测方程为TBW（kg）=1.84 + 0.45（身高平方/电阻）+0.11（体重）；r2 = 0.98；SEE = 0.62 kg。