Validation of bioelectrical-impedance analysis as a measurement of change in body composition in obesity
- Univ. of Chicago, IL (USA)
The bioelectrical-impedance-analysis (BIA) method accurately measures body composition in weight-stable subjects. This study validates the use of BIA to measure change in body composition. Twelve obese females underwent weight loss at a mean rate of 1.16 kg/wk. Body composition was measured by deuterium oxide dilution (D2O), BIA, and skinfold anthropometry (SFA) at baseline and at 5% decrements in weight. Highly significant correlations were obtained between D2O and BIA (r = 0.971) and between D2O and SFA (r = 0.932). Overall, BIA predicted change in fat-free mass with greater accuracy (to 0.4 kg) and precision (+/- 1.28 kg) than did anthropometry (to 0.8 kg and +/- 2.58 kg, respectively). We conclude that BIA is a useful clinical method for measuring change in body composition.
- OSTI ID:
- 6795553
- Journal Information:
- American Journal of Clinical Nutrition; (USA), Vol. 52:2; ISSN 0002-9165
- Country of Publication:
- United States
- Language:
- English
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ADIPOSE TISSUE
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BIOELECTRICITY
DEUTERIUM
TRACER TECHNIQUES
VALIDATION
WATER
ANIMAL TISSUES
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CONNECTIVE TISSUE
ELECTRICITY
HYDROGEN COMPOUNDS
HYDROGEN ISOTOPES
ISOTOPE APPLICATIONS
ISOTOPES
LIGHT NUCLEI
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ODD-ODD NUCLEI
OXYGEN COMPOUNDS
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550201* - Biochemistry- Tracer Techniques