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    Am J Clin Nutr. 1990 Aug;52(2):219-23.

    Validation of bioelectrical-impedance analysis as a measurement of change in body composition in obesity.

    Source

    Clinical Nutrition Research Unit, University of Chicago, IL.

    Abstract

    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.

    PMID:
    2197849
    [PubMed - indexed for MEDLINE]
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