Abstract
Background/Objectives: We evaluated the agreement of air displacement plethysmography (ADP) and bioelectrical impedance analysis (BIA) with dual-energy X-ray absorptiometry (DXA) for the assessment of percent fat mass (%FM) in morbidly obese women. Subjects/Methods: Fifty-seven women aged 19-55 years and with a body mass index (BMI) ranging from 37.3 to 55.2 kg/m 2 were studied. Values of %FM were obtained directly from ADP and DXA, whereas for BIA we estimated fat-free mass (FFM) from an equation for morbidly obese subjects and calculated %FM as (weight-FFM)/weight. Results: The mean (s.d.) difference between ADP and DXA for the assessment of %FM was -2.4% (3.3%) with limits of agreement (LOA) from -8.8% to 4.1%. The mean (s.d.) difference between BIA and DXA for the assessment of %FM was 1.7% (3.3%) with LOA from -4.9% to 8.2%. Conclusion: ADP-DXA and BIA-DXA are not interchangeable methods for the assessment of body composition in morbidly obese women.
| Original language | English |
|---|---|
| Pages (from-to) | 1129-1132 |
| Number of pages | 4 |
| Journal | European Journal of Clinical Nutrition |
| Volume | 67 |
| Issue number | 11 |
| DOIs | |
| Publication status | Published - Nov 2013 |
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Keywords
- Air displacement plethysmography
- Bioelectrical impedance analysis
- Body composition
- Dual energy X-ray absorptiometry
- Obesity
ASJC Scopus subject areas
- Medicine (miscellaneous)
- Nutrition and Dietetics
Cite this
Comparison of dual-energy X-ray absorptiometry, air displacement plethysmography and bioelectrical impedance analysis for the assessment of body composition in morbidly obese women. / Bedogni, G.; Agosti, F.; De Col, A.; Marazzi, N.; Tagliaferri, A.; Sartorio, A.
In: European Journal of Clinical Nutrition, Vol. 67, No. 11, 11.2013, p. 1129-1132.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Comparison of dual-energy X-ray absorptiometry, air displacement plethysmography and bioelectrical impedance analysis for the assessment of body composition in morbidly obese women
AU - Bedogni, G.
AU - Agosti, F.
AU - De Col, A.
AU - Marazzi, N.
AU - Tagliaferri, A.
AU - Sartorio, A.
PY - 2013/11
Y1 - 2013/11
N2 - Background/Objectives: We evaluated the agreement of air displacement plethysmography (ADP) and bioelectrical impedance analysis (BIA) with dual-energy X-ray absorptiometry (DXA) for the assessment of percent fat mass (%FM) in morbidly obese women. Subjects/Methods: Fifty-seven women aged 19-55 years and with a body mass index (BMI) ranging from 37.3 to 55.2 kg/m 2 were studied. Values of %FM were obtained directly from ADP and DXA, whereas for BIA we estimated fat-free mass (FFM) from an equation for morbidly obese subjects and calculated %FM as (weight-FFM)/weight. Results: The mean (s.d.) difference between ADP and DXA for the assessment of %FM was -2.4% (3.3%) with limits of agreement (LOA) from -8.8% to 4.1%. The mean (s.d.) difference between BIA and DXA for the assessment of %FM was 1.7% (3.3%) with LOA from -4.9% to 8.2%. Conclusion: ADP-DXA and BIA-DXA are not interchangeable methods for the assessment of body composition in morbidly obese women.
AB - Background/Objectives: We evaluated the agreement of air displacement plethysmography (ADP) and bioelectrical impedance analysis (BIA) with dual-energy X-ray absorptiometry (DXA) for the assessment of percent fat mass (%FM) in morbidly obese women. Subjects/Methods: Fifty-seven women aged 19-55 years and with a body mass index (BMI) ranging from 37.3 to 55.2 kg/m 2 were studied. Values of %FM were obtained directly from ADP and DXA, whereas for BIA we estimated fat-free mass (FFM) from an equation for morbidly obese subjects and calculated %FM as (weight-FFM)/weight. Results: The mean (s.d.) difference between ADP and DXA for the assessment of %FM was -2.4% (3.3%) with limits of agreement (LOA) from -8.8% to 4.1%. The mean (s.d.) difference between BIA and DXA for the assessment of %FM was 1.7% (3.3%) with LOA from -4.9% to 8.2%. Conclusion: ADP-DXA and BIA-DXA are not interchangeable methods for the assessment of body composition in morbidly obese women.
KW - Air displacement plethysmography
KW - Bioelectrical impedance analysis
KW - Body composition
KW - Dual energy X-ray absorptiometry
KW - Obesity
UR - http://www.scopus.com/inward/record.url?scp=84887411164&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84887411164&partnerID=8YFLogxK
U2 - 10.1038/ejcn.2013.159
DO - 10.1038/ejcn.2013.159
M3 - Article
VL - 67
SP - 1129
EP - 1132
JO - European Journal of Clinical Nutrition
JF - European Journal of Clinical Nutrition
SN - 0954-3007
IS - 11
ER -