The properties of the BIA circuit in the body are well defined. The method [of measurement] is precise, sensitive and specific in its ability to illustrate specific changes inherent in the biological subject.
The BIA provides a scientific index - a 'snapshot' of cellular level dynamics and architecture, giving valuable and immediate data of the individual?s state of health and healing from many protocols including medical research, clinical practice and the health care professional analysis and recommendation.
BIA prediction measurement equations have been developed since 1939. The measurements use parallel resistance and reactance as predictors of intracellular, extracellular and body cell mass. These equations can specify if cellular health is static, progressing and/or regressing. (Comparisons to K40, DEXA and D20 were very good (r > .9) and are sufficient to be used in clinical practice and studies of wasting disorders in AIDS patients.[