Bio-electrical impedance vector analysis: testing Piccoli's model against objective body composition data in children and adolescents.

ABSTRACT:

Background/objectives

Bio-electrical impedance (BI) analysis is a simple body composition method ideal for children. However, its utility in sick or malnourished children is complicated by variability in hydration. BI vector analysis (BIVA) potentially resolves this, using a theoretical model that differentiates hydration from cell mass. We tested this model against reference methods in healthy children varying widely in age and nutritional status.

Subjects/methods

We compiled body composition data from 291 children and adolescents (50% male) aged 4-20 years of European ancestry. Measurements included anthropometry, BIVA outcomes (height-adjusted resistance (R/H) and reactance (Xc/H); phase angle (PA)), and fat-free mass (FFM), fat mass (FM) and FFM-hydration (H_FFM

SUBMITTER: Wells JCK 

PROVIDER: S-EPMC6760620 | biostudies-literature | 2019 Jun

REPOSITORIES: biostudies-literature