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22 July, 2008

Bioelectrical Impedance Analysis

Bioelectrical Impedance Analysis or BIA is considered one of the most exact and accessible methods of screening body fat. In conventional BIA, a person is weighed, then weight, height, age and gender are entered in a computer. While the person is lying down, electrodes are attached to various parts of the body and a small electric current is discharged that measures the impedance or resistance to muscle and fat. The more muscle, the lower the value as the electricity passes easily through lean mass. A formula in the computer converts all of the data to indicate what percentage of the body is fat.

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