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Bioimpedance basics and phase angle fundamentals

Measurement of phase angle using bioimpedance analysis (BIA) has become popular as an index of so-called “cellular health”. What precisely is meant by this term is not always clear but strong relationships have been found between cellular water status (the relative amounts of extra- and intracellula...

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Autores principales: Ward, Leigh C., Brantlov, Steven
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer US 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10140124/
https://www.ncbi.nlm.nih.gov/pubmed/36749540
http://dx.doi.org/10.1007/s11154-022-09780-3
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author Ward, Leigh C.
Brantlov, Steven
author_facet Ward, Leigh C.
Brantlov, Steven
author_sort Ward, Leigh C.
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description Measurement of phase angle using bioimpedance analysis (BIA) has become popular as an index of so-called “cellular health”. What precisely is meant by this term is not always clear but strong relationships have been found between cellular water status (the relative amounts of extra- and intracellular water), cell membrane integrity and cellular mass. Much of the current research is empirical observation and frequently pays little regard to the underlying biophysical models that underpin the BIA technique or attempts to provide mechanistic explanations for the observations. This brief review seeks to provide a basic understanding of the electrical models frequently used to describe the passive electrical properties of tissues with particular focus on phase angle. In addition, it draws attention to some practical concerns in the measurement of phase angle and notes the additional understanding that can be gained when phase angle are obtained with bioimpedance spectroscopy (BIS) rather than single frequency BIA (SFBIA) along with the potential for simulation modelling.
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spelling pubmed-101401242023-04-29 Bioimpedance basics and phase angle fundamentals Ward, Leigh C. Brantlov, Steven Rev Endocr Metab Disord Article Measurement of phase angle using bioimpedance analysis (BIA) has become popular as an index of so-called “cellular health”. What precisely is meant by this term is not always clear but strong relationships have been found between cellular water status (the relative amounts of extra- and intracellular water), cell membrane integrity and cellular mass. Much of the current research is empirical observation and frequently pays little regard to the underlying biophysical models that underpin the BIA technique or attempts to provide mechanistic explanations for the observations. This brief review seeks to provide a basic understanding of the electrical models frequently used to describe the passive electrical properties of tissues with particular focus on phase angle. In addition, it draws attention to some practical concerns in the measurement of phase angle and notes the additional understanding that can be gained when phase angle are obtained with bioimpedance spectroscopy (BIS) rather than single frequency BIA (SFBIA) along with the potential for simulation modelling. Springer US 2023-02-07 2023 /pmc/articles/PMC10140124/ /pubmed/36749540 http://dx.doi.org/10.1007/s11154-022-09780-3 Text en © The Author(s) 2023, corrected publication 2023 https://creativecommons.org/licenses/by/4.0/Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Ward, Leigh C.
Brantlov, Steven
Bioimpedance basics and phase angle fundamentals
title Bioimpedance basics and phase angle fundamentals
title_full Bioimpedance basics and phase angle fundamentals
title_fullStr Bioimpedance basics and phase angle fundamentals
title_full_unstemmed Bioimpedance basics and phase angle fundamentals
title_short Bioimpedance basics and phase angle fundamentals
title_sort bioimpedance basics and phase angle fundamentals
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10140124/
https://www.ncbi.nlm.nih.gov/pubmed/36749540
http://dx.doi.org/10.1007/s11154-022-09780-3
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