BIOELECTRICAL IMPEDANCE MEASURING METHOD AND BODY COMPOSITION MEASURING APPARATUS

摘要

In a bioelectrical impedance measuring method of the present invention, a first, second and third bioelectrical impedance values are determined by a measurement using the alternating currents having a first, second and third frequencies respectively. Then, an vector impedance locus is derived from only the derived first, second and third bioelectrical impedance values to determine the bioelectrical impedance values at 0 frequency and at an infinite frequency. The body composition is also judged based on the measured results. Limiting frequencies used for the measurement to three kinds enables the apparatus to be simplified and to be manufactured at a low cost as well as achieving the shortened measuring time and the enhanced measuring accuracy. IMAGE