単周波数および多周波数BI法における身体組成評価の比較検討

概要

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The purpose of this study was to compare estimates of human body composition determined from single-frequency bioelectrical impedance methods (S-BIM) and multi-frequency bioelectrical impedance methods (M-BIM). The human body composition was assessed by dual energy X-ray absorptiometry (DEXA), 5 brands of S-BIM, and 2 brands of M-BIM. Forty-five women, aged 26-58 years, served as subjects. The S-BIM and M-BIM fat-free mass (FFM) estimates were highly correlated with the FFM measured by DEXA (r=0.82-0.93). The standard errors of estimate (SEE) for FFM were approximately 2 kg. With the exception of the MLT-100 (which slightly underestimated FFM), all brands of BIM slightly overestimated FFM. The absolute mean differences between FFM_<DEXA> and each of the 7 BIM estimates ranged from -3.02kg to 3.46kg. Although the 7 brands of BIM provided slightly different estimates, the results of this study suggest that S-BIM and M-BIM are relatively valid in human body composition.
日本体力医学会の論文
2003-08-01