Bio Impedance Analysis


What is Bio-impedance analysis?

Bio-impedance analysis (BIA) is the analysis of resistance and reactance in the human body. Fat-free mass (muscle) is proportional to the resistance, while body cell mass is proportional to the reactance.

A bio-impedance analyzer measures resistance and reactance, and computes fat-free mass, body cell mass and total body water. Studies of large populations have established normal values, as well as the relationship between body composition and health.

To measure resistance and reactance, a bio-impedance analyzer applies a small electrical current to the body.

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