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Agreement between ultrasound and dual‐energy X‐ray absorptiometry in assessing percentage body fat in college‐aged adults
Author(s) -
Johnson Kelly E.,
Miller Brian,
JuvancicHeltzel Judith A.,
Agnor Sarah E.,
Kiger Dana L.,
Kappler Rachele M.,
Otterstetter Ronald
Publication year - 2014
Publication title -
clinical physiology and functional imaging
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.608
H-Index - 67
eISSN - 1475-097X
pISSN - 1475-0961
DOI - 10.1111/cpf.12150
Subject(s) - medicine , dual energy x ray absorptiometry , nuclear medicine , ultrasound , limits of agreement , population , dual energy , significant difference , radiology , osteoporosis , bone mineral , environmental health
Summary 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 m − ², 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 <0·001) with no difference between men and women. 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.
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