Comparison of anthropometry to dual energy X-ray absorptiometry: a new prediction equation for women

Res Q Exerc Sport. 2004 Sep;75(3):248-58. doi: 10.1080/02701367.2004.10609158.

Abstract

The purpose of this study was to assess the accuracy of three recommended anthropometric equations for women and then develop an updated prediction equation using dual energy x-ray absorptiometry (DXA). The percentage of body fat (%BF) by anthropometry was significantly correlated (r = .896-.929; p < .01) with DXA, but each equation underestimated %BF (3.2-5.6 %BF; p < .01). The following DXA criterion (DC) equation was created: %BF= -6.40665 + 0.41946(S3SF) - 0.00126(S3SF)2 + 0.12515(hip) + 0.06473 (age); (S3SF = sum of triceps, suprailiac, thigh; hip = circumference in cm; age = years). The predicted residual sum of squares (PRESS) R2 was high (0.86), and the PRESS standard error of estimate (SEE) was low (2.5 %BF) for our sample of 150 women. The DC equation was further crosschecked on a separate sample of women (n = 25) and again showed excellent agreement. The DC equation appears to be a more accurate estimation of %BF in women.

Publication types

  • Clinical Trial
  • Comparative Study
  • Validation Study

MeSH terms

  • Absorptiometry, Photon*
  • Adipose Tissue / physiology*
  • Adolescent
  • Adult
  • Age Factors
  • Anthropometry*
  • Body Composition / physiology*
  • Female
  • Humans
  • Middle Aged
  • Predictive Value of Tests
  • Regression Analysis