... (TBW), Protein, Minerals, Osseous minerals, Body Fat mass, Fat Free Mass(FFM), Percent Body Fat(PBF), Muscle mass, Skeletal muscle ... reference methods, but the results are contradictory. The key point of the accuracy of the BIA model is its correlation with its gold ... testing. DDS (Direct Digital Synthesizer) is the most advanced system to output high definition sine wave frequency. Contrast to other ...