Normal Reference Plots for the Bioelectrical Impedance Vector in Healthy Korean Adults

Journal of Korean Medical Science
Jun Hyok OhKwang Soo Cha

Abstract

Accurate volume measurement is important in the management of patients with congestive heart failure or renal insufficiency. A bioimpedance analyser can estimate total body water in litres and has been widely used in clinical practice due to its non-invasiveness and ease of results interpretation. To change impedance data to volumetric data, bioimpedance analysers use equations derived from data from healthy subjects, which may not apply to patients with other conditions. Bioelectrical impedance vector analysis (BIVA) was developed to overcome the dependence on those equations by constructing vector plots using raw impedance data. BIVA requires normal reference plots for the proper interpretation of individual vectors. The aim of this study was to construct normal reference vector plots of bioelectrical impedance for Koreans. Bioelectrical impedance measurements were collected from apparently healthy subjects screened according to a comprehensive physical examination and medical history performed by trained physicians. Reference vector contours were plotted on the RXc graph using the probability density function of the bivariate normal distribution. We further compared them with those of other ethnic groups. A total of 242 heal...Continue Reading

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Citations

Oct 1, 2020·Nutrients·Il-Young JangBeom-Jun Kim
Jun 24, 2021·Global Advances in Health and Medicine : Improving Healthcare Outcomes Worldwide·Paweł WięchIzabela Sałacińska

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Software Mentioned

BIVA
Inbody
SPSS

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