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Asian J Sports Med. 2013 Jun;4(2):153-7. Epub 2013 Feb 16.

Predicting body composition in college students using the womersley and durnin body mass index equation.

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1
Department of Health and Exercise Science. The University of Oklahoma, Norman, Oklahoma, USA.

Abstract

PURPOSE:

When assessing fitness levels, body composition is usually measured. The purpose of this study was to determine the overall efficacy of a body mass index (BMI) equation for predicting body composition with respect to college aged participants.

METHODS:

Body composition was measured using dual-energy x-ray absorptiometry (DXA) and was estimated using the Womersley and Durnin BMI prediction equation.

RESULTS:

There was no significant (P=0.8) percent body fat (%BF) difference between the BMI prediction equation and DXA (BMI Predicted=25 (10) [min=6; max=52] %BF vs DXA=25 (6) [min=10; max=45] %BF). In addition, a significant correlation was found between the two approaches (r=0.791, P=0.001). However, both the standard error of estimate (6.32 %BF) and total error (6.63 %BF) were outside acceptable ranges for prediction equations.

CONCLUSION:

The Womersley and Durnin equation for estimating %BF was not found to be a good estimate. Therefore, although the BMI predicted %BF has been previously found to predict skinfold estimated %BF, it does not appear valid in estimating %BF from DXA.

KEYWORDS:

Body Fat; Fat Mass; Percent Fat

PMID:
23802058
PMCID:
PMC3690736
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