PMID: 8594047Nov 1, 1995Paper

Assessing total body protein, mineral, and bone mineral content from total body water and body density

Journal of Applied Physiology
S F SiconolfiW W Wong

Abstract

We hypothesized that investigators could assess bone mineral content (BMC), total body mineral (M), and protein (P) from body water (W) and density (DB) based on the theory of W. E. Siri (Advances in Biological and Medical Physics, 1956, p. 239-280 and Techniques for Measuring Body Composition, 1961, p. 223-224) for body composition analysis. Siri used one or more of the body components and the densities of the body, fat (F), W, M, and P to estimate one of the remaining fractional masses. We compared M, BMC, P. F, and fat-free mass (FFM) in 31 subjects (15 women and 16 men) computed from measurements of W and DB with [4-compartment (4C) model] and without [3-compartment (3C) model] BMC (from dual X-ray absorptiometry). 4C model P was calculated by difference (P = FFM - W - M). Mean difference (P > 0.05) ranged from 0.1 to 0.8%. Correlations [+/- standard error of estimate (%)] between 4C and 3C model values were significant (r = 0.907 +/- 8.8, 0.907 +/- 8.7, 0.969 +/- 6.6, 0.998 +/- 2.0, and 0.999 +/- 0.7% for M, BMC, P, F, and FFM, respectively). We concluded that investigators can assess M, BMC, and P from W and DB.

Citations

Dec 29, 1999·Medicine and Science in Sports and Exercise·C M ModleskyK J Cureton
May 17, 2014·Applied Physiology, Nutrition, and Metabolism = Physiologie Appliquée, Nutrition Et Métabolisme·Jose LaraMario Siervo
Jun 24, 2000·Annals of the New York Academy of Sciences·P Ritz
Sep 14, 1999·The American Journal of Physiology·D N ProctorK S Nair
Apr 1, 2004·European Journal of Clinical Nutrition·J LaForgiaB E Chatterton
Mar 22, 2006·The Journal of Nutrition·ZiMian WangSteven B Heymsfield

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