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Bioelectrical impedance analysis (BIA) is a method for estimating body composition, in particular body fat and muscle mass, where a weak electric current flows through the body, and the voltage is measured in order to calculate impedance (resistance and reactance) of the body. Most body water is stored in muscle.
Bioelectrical impedance analysis measures body composition based on the rate at which an electrical current travels through the body. Body fat (adipose tissue) causes greater resistance (impedance) than lean mass and slows the rate at which the current travels.
Bioelectrical Impedance Analysis (BIA) is able to make an estimation of body composition (e.g. quantities of fat mass and fat-free mass) by running a small electrical current through the body.
A window on the biology of the human body has opened as a result of numerous studies utilizing bioelectrical impedance. The view from this window is affected by the previous and current works of human biologists and biomedical engineers and by the future potential of bioelectrical impedance.
Bioimpedance analysis is a noninvasive, low cost and a commonly used approach for body composition measurements and assessment of clinical condition. There are a variety of methods applied for interpretation of measured bioimpedance data and a wide ...
Bioelectrical impedance analysis is a technique that measures the opposition (impedance) to a harmless alternating electrical current as it passes through the body’s water pool typically between upper to lower limbs.
Bioelectrical impedance analysis is a method used to estimate body compartments through a mechanism of resistance and reactance. The compartments measured include body cell mass, fat mass, extracellular tissue, and fat-free mass.
Philippson measured the impedance of biological entities, including blood cells and guinea pig muscle and liver of a frequency range of 500 kHz to 3 MHz, presaging modern researches into the frequency response of tissues.
Bioelectrical impedance analysis is an extremely popular method for assessment of body composition. Despite its wide-spread use over the past thirty years, its accuracy and...
Bioimpedance measurements refer to all methods based on the characterization of the passive electrical properties of biological tissue. This is achieved by the introduction of a constant, alternating current below the threshold of perception, and the measurement of the resulting voltage potential.