Validation of A Bioelectrical Impedance Analysis Equation for Predicting Body Composition in Young Children of Varying Ages and Ethnicities

Résumé fourni par la source

The purpose of this study is to determine if our previously published pediatric-specific bioelectrical impedance analysis (BIA) equation can successfully estimate body composition in 1) 5-11 year old, black, non-Hispanic and biracial children and in 2) children ages 2-4 years. A sample of 135 children (aged 5 to 11 years) was used for specific aim 1 while an additional sample of 47 children (aged 2 to 4 years) was used to assess specific aim 2. Dual energy X-ray absorptiometry (DXA) fat-free mass (FFM) was used as the criterion measure, and a single frequency tetra-polar BIA device was used within the pediatric-specific BIA equation. Our pediatric-specific BIA equation FFM explained 96.8% of the variance in DXA FFM within the 5-11 year old, black, non-Hispanic and biracial sample while explaining 94.1% of the variance in DXA FFM within the 2-4 year old sample. The use and application of our pediatric-specific BIA equation will provide a valuable tool to help prevent and combat childhood obesity by providing a method of assessing body composition that is considered valid, non-invasive, and economical and can be used in the laboratory, as well as a clinic or field setting.

Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.