ImpediMed

[ImPoster]

ImpediMed's devices follow the NIH recommended guidelines for the use of bioimpedance in a clinical setting. The subject should be lying supine (on their back) so that their bodily fluids equilibreate. (When standing or sitting, gravity otherwise 'pulls' bodily fluids into the extremities.) The NIH guidelines also suggest a tetra-polar arrangement of the gel electrodes - two on the hand and two on the foot. That way the current travels through the leg, up through the torso, and through the arm - thus providing full body assessment. Scales you stand on send the BIA current up one leg and down the other. BIA machines you hold in your hands send the current up one arm and down the other. Neither method provides the accuracy of the full body, tetra-polar approach.