SciELO - Scientific Electronic Library Online

 
vol.44 issue1Eating habits, nutritional status and lifestyle among active seniors in the city of Chillan, ChileLipids, sodium and dietary fiber in wheat flour and artisan bread in Uruguay: nutritional intake according to the recommendations for different population groups author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand

Journal

Article

Indicators

Related links

  • On index processCited by Google
  • Have no similar articlesSimilars in SciELO
  • On index processSimilars in Google

Share


Revista chilena de nutrición

On-line version ISSN 0717-7518

Abstract

BRITZ, Mónica; AZNAREZ, Alicia  and  DELLA SANTA, Ana Paula. Development and validation of equations for estimating body composition in 4-6 year old children from Uruguay. Rev. chil. nutr. [online]. 2017, vol.44, n.1, pp.63-70. ISSN 0717-7518.  http://dx.doi.org/10.4067/S0717-75182017000100009.

A correct diagnosis of obesity requires estimating body composition since it is linked to excess fat. Therefore it is necessary to have practical and sensitive methods of measurement. The aim of this study was to develop and validate bioelectrical impedance (BIA) and anthropometric equations to estimate fat mass (FM) and fat-free mass (FFM). Anthropometric measurements, BIA and deuterium dilution technique as the reference standard were performed in 191 children (4-6 years). Two equations were developed using multiple regression models and were validated in a subsample. Bland and Altman was applied to evaluate the bias differences between the means of both methods. The BIA equation was FFM (kg)= 2,089 + (0,346 * Fieight2/Resistance) + (0,312 * Weight) + (0,660 * Sex); with R2= 0.92, SRMSE 0,67 kg, bias 0,140 kg and precision 0,73 kg. The anthropometric equation was FM (kg)= 0.841 + (0,408 * Weight) + (0,137 * Subscapular-Skinfolds-Thickness) + (0,104 * Tricipital-Skinfolds-Thickness) - (0,764 * Sex) - (0,054 * Feight); with R2= 0.89, SRMSE 0,68 kg, bias -0,01 kg and precision 0,76 kg. The equations validated had a good predictive capacity and can be especially useful in epidemiological studies.

Keywords : Body composition; childhood obesity; anthropometry; bioelectrical impedance; prediction equations.

        · abstract in Spanish     · text in Spanish     · Spanish ( pdf )

 

Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License