an apparently quick means for determining the lean body mass. Abbreviated BIA. There are two main types of the BIA. One involves looking at a particular scale with footpads. A harmless number of electrical current is sent through the body, after which the percentage of body fat is computed. One other type of BIA involves electrodes typically positioned on a wrist and an ankle and on the back of just the right hand and on the top the foot. The alteration in current between electrodes is assessed. The individuals surplus fat portion will be computed from outcomes of the BIA.