bioelectrical impedance


Also found in: Dictionary, Thesaurus, Encyclopedia.

bioelectrical impedance

Abbreviation: 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.
References in periodicals archive ?
Crosscalibration of eight-polar bioelectrical impedance analysis versus dual-energy X-ray absorptiometry for the assessment of total and appendicular body composition in healthy subjects aged 21-82 years.
Development of a segmental bioelectrical impedance prediction equation for the assessment of body composition in Sri Lankan children.
Jackson AS, Pollock ML, Graves JE, Reliability and validity of bioelectrical impedance in determining body composition.
Age was a determinant of bioelectrical impedance at each visit, with women aged less than 20 years (i.
Effect of skin temperature on multifrequency bioelectrical impedance analysis.
Bioelectrical impedance vector analysis in the critically ill: Cool tool or just another 'toy'?
Good agreement between bioelectrical impedance and dual-energy X-ray absorptiometry for estimating changes in body composition during weight loss in overweight young women.
KEYWORDS: Bioelectrical impedance, Correlation, Percentage body fat, Skinfold thickness.
Validity of predictive equations developed to estimate body fat from anthropometry and bioelectrical impedance analysis in 8-10 year-old children.
Body composition was assessed by bioelectrical impedance analysis using segmental body composition analyser.