Professional body mass analysers InBody are characterized by uncompetitive accuracy of the measurement results for using a patented technology DSM-BIA Direct Segment Multifrequency - Bioimpedancy Analysis of body mass by 8 dot electrode system providing fixed positions of the measured biological impedance in 5 parts of the body - the upper and lower limbs and hull. This patented technology is owned by InBody. Оther manufacturers BIA analysts use statistical empirical evaluation of deriving their uncertainty of results, which is also dependent on the human factor. Because of these patented technical solutions only reach analysts InBody accuracy of the measurement results, which is comparable to the DEXA (Dual Energy X-Rey Analysator).