Abstract
This paper presents the development and evaluation of the i Series BIA (bioelectrical impedance analysis) device (models i20, i25, i30, i35, i50, i55), by MEDIANA Co., Ltd. The device utilizes a tetra-polar electrode method incorporating 8-point electrodes to improve the accuracy and reliability of body composition analysis. This paper employs a multi-frequency segmental measurement method with a wide range of measurement frequencies from 1 kHz to 1000 kHz. In comparing the correlation between Dual Energy X-ray Absorptiometry (DEXA) and BIA devices for fat-free mass (FFM) and muscle mass measurements, the results demonstrated a high correlation, with a coefficient of determination (R) of 0.984 for fat-free mass and 0.983 for muscle mass, respectively.
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