Title

Agreement between Ultrasound and Dual-Energy X-Ray Absorptiometry in Assessing Percentage Body Fat in College-Aged Adults

Document Type

Article

Publication Date

Spring 4-4-2014

Abstract

Background

The BodyMetrix® BX-2000 Ultrasound device (ULTRA) shows prowess in being an effective alternative to the expense and technicality of dual-energy X-ray absorptiometry (DXA). However, this technique has not been investigated using a seven-site methodology.

Subject/Objective

To employ a cross-over design to investigate the agreement between ULTRA using a seven-site methodology and DXA in assessing body fat (%BF) in a normal-weight sample of college-age men and women. Methods: Subjects (n = 84, BMI = 23·6 ± 3·6 kg m², age = 23·0 ± 4·7 years) participated in this study with %BF measurements following the manufacturer's specifications.

Results

Significant differences were observed between methods with ULTRA less than DXA (difference = 4·4 ± 0·8%, t-statistic = 7·27, P

Conclusion

The current study showed that ULTRA using a seven-site methodology did not agree with DXA in measuring %BF. Thus, this investigational ULTRA methodology might not be appropriate in estimating %BF in this population.

Publication Title

Clinical Physiology and Functional Imaging

Volume

34

Issue

6

First Page

493

Last Page

496