Validation of near-infrared interactance and skinfold methods for estimating body composition of American Indian women

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Abstract
HICKS, V. L., L. M. STOLARCZYK, V. H. HEYWARD, and R. N. BAUMGARTNER. Validation of near-infrared interactance and skinfold methods for estimating body composition of American Indian women. Med. Sci. Sports Exerc., Vol. 32, No. 3, pp. 531–539, 2000. This study tested the predictive accuracy of the Jackson et al. skinfold (SKF) equations (Σ7SKF and Σ3SKF), a multi-site near-infrared interactance (NIR) prediction equation, and the Futrex-5000 NIR equation in estimating body composition of American Indian women (N = 151, aged 18–60 yr). Criterion body density (Db) was obtained from hydrodensitometry at residual lung volume. Σ7SKF significantly underestimated Db (P b We recommend using the ethnic-specific SKF and NIR equations developed in this study to estimate Db of American Indian women.