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Ability of new octapolar bioimpedance spectroscopy analyzers to predict 4-component-model percentage body fat in Hispanic, black, and white adults

Gibson, Ann L ; Holmes, Jason C ; Desautels, Richard L ; Edmonds, Lyndsay B ; Nuudi, Laura

The American journal of clinical nutrition, 2008-02, Vol.87 (2), p.332-338 [Periódico revisado por pares]

United States: American Society for Nutrition

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Ability of new octapolar bioimpedance spectroscopy analyzers to predict 4-component-model percentage body fat in Hispanic, black, and white adults
Autor: Gibson, Ann L ; Holmes, Jason C ; Desautels, Richard L ; Edmonds, Lyndsay B ; Nuudi, Laura
Assuntos: Absorptiometry, Photon ; Adipose Tissue ; Adult ; adults ; Aged ; Aged, 80 and over ; bioelectrical impedance ; Black or African American ; Blacks ; Body Composition ; Body fat ; Body Mass Index ; Comparative analysis ; Electric Impedance ; Female ; Gender differences ; Hispanic or Latino ; Hispanics ; Humans ; Male ; men ; Middle Aged ; Minority & ethnic groups ; nutrition assessment ; octapolar bioimpedance spectroscopy ; prediction ; Predictive Value of Tests ; Sex Factors ; spectroscopy ; Spectrum analysis ; Spectrum Analysis - instrumentation ; Spectrum Analysis - methods ; White People ; Whites ; women
É parte de: The American journal of clinical nutrition, 2008-02, Vol.87 (2), p.332-338
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Descrição: BACKGROUND: New, vertical, 8-electrode bioimpedance spectroscopy (BIS) analyzers provide detailed body-composition and nutritional information within 2 min. This is the first report on BIS's accuracy in predicting relative fatness [percentage body fat (%BF)] in a heterogeneous sample according to a multicomponent model criterion. OBJECTIVE: We compared %BF measurements from 2 BIS devices with those from a multicomponent model in a sample of Hispanic, black, and white adults. DESIGN: Equal numbers of apparently healthy men and women (n = 75 of each) from each racial-ethnic group, diverse in body mass index and age, volunteered. Reference %BF (%BF₄C) was computed by using a 4-component (4C) model with total bone mineral content obtained from dual-energy X-ray absorptiometry, body density from underwater weighing with measured residual lung volume, and total body water from traditional BIS. Estimations from InBody 720 (%BF₇₂₀) and InBody 320 (%BF₃₂₀) BIS analyzers were validated against %BF₄C. RESULTS: The %BF₇₂₀ (r = 0.85, SEE = 5.19%BF) and %BF₃₂₀ (r = 0.84, SEE = 5.17%BF) correlations were significant (P < 0.05) in the men; main effects were nonsignificant. Correlations for %BF₇₂₀ (r = 0.88, SEE = 4.85%BF) and %BF₃₂₀ (r = 0.89, SEE = 4.82%BF) also were significant in the women (P < 0.05); there was a main effect for method but not race-ethnicity. There were no sex-specific overestimations or underestimations at the extremes of the distributions. CONCLUSIONS: BIS estimates of %BF₄C were well correlated in men and women. There were no significant methodologic differences in the men. The %BF₄C was significantly underestimated by %BF₇₂₀ and %BF₃₂₀ in the women.
Editor: United States: American Society for Nutrition
Idioma: Inglês

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Ability of new octapolar bioimpedance spectroscopy analyzers to predict 4-component-model percentage body fat in Hispanic, black, and white adults

Gibson, Ann L ; Holmes, Jason C ; Desautels, Richard L ; Edmonds, Lyndsay B ; Nuudi, Laura

United States: American Society for Nutrition

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