Factors affecting the in vivo precision of bioelectrical impedance analysis

Evans, W. D. ORCID: https://orcid.org/0000-0003-0013-8205, McClagish, H. and Trudgett, C. 1998. Factors affecting the in vivo precision of bioelectrical impedance analysis. Applied Radiation and Isotopes 49 (5-6) , pp. 485-487. 10.1016/s0969-8043(97)00061-4

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Abstract

The influence of factors which affect the in vivo precision of bioelectrical impedance measurements was investigated in two young female volunteers. Measured impedance increased consistently with time with the subject lying supine, although the effect could be eliminated by rising between measurements. Electrode placement had a relatively large effect, while moving the electrodes such that the volume of conducting tissue was reduced caused the impedance to decrease. Cleaning the skin with alcohol, moving the arm away from the body, and eating a large meal caused impedance to increase systematically. However, drinking a litre of water and varying the depth of respiration had no observable effect.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Medicine
Additional Information:	Part of special issue: International Symposium on In Vivo Body Comparison Studies, edited by Magne Alpsten and Soren Mattsson
Publisher:	Elsevier
ISSN:	0969-8043
Last Modified:	10 Nov 2022 09:53
URI:	https://orca.cardiff.ac.uk/id/eprint/144889

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