Medicine and Health Sciences Commons^™

Assessing The Body Composition Of 6-17 Year-Old Black And White Girls In Field Studies, John A. Morrison, Shumei S. Guo, Bonny L. Specker, Wm. Cameron Chumlea, Susan Z. Yanovski, Jack A. Yanovski

Ethel Austin Martin Program Publications

The purpose of the study was to develop ethnic-specific equations for fat-free mass (FFM) from selected anthropometric dimensions and bioelectrical impedance measures of resistance (R) and reactance (Xc) for use in the NHLBI Growth and Heath Study. Using dual-energy X-ray absorptiometry measures of body composition as the dependent variable and field measures of body composition by anthropometry and bioelectrical impedance as the explanatory variables, ethnic-specific prediction equations were developed on a sample of girls representing a wide range of ages and BMI. The equations were cross-validated using (1) the Prediction of Sum of Squares (PRESS) statistic and (2) an independent …