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bioelectrical impedanceAbbreviation: BIA
Resistance to electrical current as it travels through body fluids and tissues. Its measurement is used in body composition analysis to determine total water, lean mass, and other body components. The results may vary with ambient temperature and humidity, the subject's hydration, and other variables. See: body composition; body fat; fluid, body; lean body mass
See also: impedance
bioelectrical impedance (bīˈ·ō·ē·lekˑ·trik im·pēˈ·dns),
n measurement of tissue conductivity by applying an electric current to the body.
bioelectrical impedance (bīōe-lek´trikəl impē´dəns),
n a method of measuring total body fat that uses electrical current and is based on the premise that lean body mass is a better conductor of electricity than fat. See also body mass index calculation.