Percentage of Total Body Fat as Estimated by Three Automatic Bioelectrical Impedance Analyzers
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概要
- 論文の詳細を見る
The present study aimed to compare the accuracy of estimating the percentage of total body fat (%TBF) among three bioelectrical impedance analysis (BIA) devices: a single-frequency BIA with four tactile electrodes (SF-BIA4), a single-frequency BIA with eight tactile electrodes (SF-BIA8) and a multi-frequency BIA with eight tactile electrodes (MF-BIA8). Dual-energy x-ray absorptiometry (DXA) and hydrostatic weighing (HW) were used as references for the measured values. Forty-five healthy college student volunteers (21 males: 172.9±5.5cm and 65.8±9.1kg and 24 females: 160.7±6.6cm, 52.6±6.2kg) were the subjects. Correlation coefficients between the BIA measurements and the references were calculated. The standard error of estimation (SEE) was calculated by regression analysis when estimating the reference measures (DXA and HW) from the predictor (SF-BIA4, SF-BIA8 and MF-BIA8). The differences in %TBF between the reference and the predictor, calculated by the reference minus the predictor, were plotted against the %TBF measured by the references. The MF-BIA 8 here showed the highest correspondence to the reference and the least estimation error compared with the other BIA methods. It is considered that there is a limit to directly estimate FFM from a regression equation using impedance, weight, height and age as independent variables, and that %TBF can be more accurately estimated by measuring segmental impedances using eight electrodes and multi-frequency electric currents and then estimating total body water from these impedances.
- 日本生理人類学会の論文
著者
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Demura Shinichi
Kanazawa Univ. Graduate School Of Natural Sci. & Technol.
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Demura Shinichi
Department Of Physical Education Kanazawa University
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Demura S
Graduate School Of Natural Science & Technology Kanazawa University
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Kitabayashi Tamotsu
Kanazawa College of Art
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Demura Shin-ichi
Department Of Physical Education Kanazawa University
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Kitabashi Tamotsu
Yonago National College of Technology
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Sato Susumu
Kanazawa Institute of Technology, Life-long Sports Core
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Kitabayashi Tamotsu
Yonago National College of Technology
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Sato Susumu
Kanazawa Inst. Of Technol. Life-long Sports Core
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Sato S
Life-long Sports Core Kanazawa Institute Of Technology
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Sato Susumu
Department Of Precision Mechanics Faculty Of Engineering Kyoto University
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Demura Shinichi
Kanazawa University
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