The validity of bioelectrical impedance models in clinical populations.

  title={The validity of bioelectrical impedance models in clinical populations.},
  author={Andrea Buchholz and Cynthia Bartok and Dale A. Schoeller},
  journal={Nutrition in clinical practice : official publication of the American Society for Parenteral and Enteral Nutrition},
  volume={19 5},
Bioelectrical impedance analysis (BIA) is the most commonly used body composition technique in published studies. Herein we review the theory and assumptions underlying the various BIA and bioelectrical impedance spectroscopy (BIS) models, because these assumptions may be invalidated in clinical populations. Single-frequency serial BIA and discrete multifrequency BIA may be of limited validity in populations other than healthy, young, euvolemic adults. Both models inaccurately predict total… CONTINUE READING