Title :
What does bioimpedance measure?
Author :
Stroud, Daniel B.
Author_Institution :
Dept. of Med. Phys., Monash Univ., Clayton, Vic., Australia
Abstract :
Measurements of bioimpedance are often used to determine water spaces in humans and this leads to the perception that it measures the sum of extra- plus intracellular water at high frequencies. Using a simple mathematical model it is shown that the intra-cellular water makes only a small contribution to the quantity that it actually measures
Keywords :
bioelectric phenomena; biomedical measurement; cellular biophysics; electric impedance measurement; physiological models; water; bioimpedance measurements; body composition studies; body water spaces; extracellular water; fat free mass; humans; intracellular water; simple mathematical model; water spaces determination; Bioimpedance; Biomedical measurements; Conductivity; Current measurement; Electrodes; Extraterrestrial measurements; Frequency measurement; Impedance measurement; Instruments; Predictive models;
Conference_Titel :
Bioelectromagnetism, 1998. Proceedings of the 2nd International Conference on
Conference_Location :
Melbourne, Vic.
Print_ISBN :
0-7803-3867-7
DOI :
10.1109/ICBEM.1998.666386
