Microwave Hydration Monitoring: System Assessment Using Fasting Volunteers

Hydration is an important aspect of human health, as water is a critical nutrient used in many physiological processes. However, there is currently no clinical gold standard for non-invasively assessing hydration status. Recent work has suggested that permittivity in the microwave frequency range pr...

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Autores principales:	Brendon C. Besler, Elise C. Fear
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	microwave sensing hydration and nutrition permittivity estimation Chemical technology TP1-1185
Acceso en línea:	https://doaj.org/article/e5a75f41ad254d91af48cce9fd5d6fdd
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spelling	oai:doaj.org-article:e5a75f41ad254d91af48cce9fd5d6fdd2021-11-11T18:59:56ZMicrowave Hydration Monitoring: System Assessment Using Fasting Volunteers10.3390/s212169491424-8220https://doaj.org/article/e5a75f41ad254d91af48cce9fd5d6fdd2021-10-01T00:00:00Zhttps://www.mdpi.com/1424-8220/21/21/6949https://doaj.org/toc/1424-8220Hydration is an important aspect of human health, as water is a critical nutrient used in many physiological processes. However, there is currently no clinical gold standard for non-invasively assessing hydration status. Recent work has suggested that permittivity in the microwave frequency range provides a physiologically meaningful metric for hydration monitoring. Using a simple time of flight technique for estimating permittivity, this study investigates microwave-based hydration assessment using a population of volunteers fasting during Ramadan. Volunteers are measured throughout the day while fasting during Ramadan and while not fasting after Ramadan. Comparing the estimated changes in permittivity to changes in weight and the time s fails to establish a clear relationship between permittivity and hydration. Assessing the subtle changes in hydration found in a population of sedentary, healthy adults proves difficult and more work is required to determine approaches suitable for tracking subtle changes in hydration over time with microwave-based hydration assessment techniques.Brendon C. BeslerElise C. FearMDPI AGarticlemicrowave sensinghydration and nutritionpermittivity estimationChemical technologyTP1-1185ENSensors, Vol 21, Iss 6949, p 6949 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	microwave sensing hydration and nutrition permittivity estimation Chemical technology TP1-1185
spellingShingle	microwave sensing hydration and nutrition permittivity estimation Chemical technology TP1-1185 Brendon C. Besler Elise C. Fear Microwave Hydration Monitoring: System Assessment Using Fasting Volunteers
description	Hydration is an important aspect of human health, as water is a critical nutrient used in many physiological processes. However, there is currently no clinical gold standard for non-invasively assessing hydration status. Recent work has suggested that permittivity in the microwave frequency range provides a physiologically meaningful metric for hydration monitoring. Using a simple time of flight technique for estimating permittivity, this study investigates microwave-based hydration assessment using a population of volunteers fasting during Ramadan. Volunteers are measured throughout the day while fasting during Ramadan and while not fasting after Ramadan. Comparing the estimated changes in permittivity to changes in weight and the time s fails to establish a clear relationship between permittivity and hydration. Assessing the subtle changes in hydration found in a population of sedentary, healthy adults proves difficult and more work is required to determine approaches suitable for tracking subtle changes in hydration over time with microwave-based hydration assessment techniques.
format	article
author	Brendon C. Besler Elise C. Fear
author_facet	Brendon C. Besler Elise C. Fear
author_sort	Brendon C. Besler
title	Microwave Hydration Monitoring: System Assessment Using Fasting Volunteers
title_short	Microwave Hydration Monitoring: System Assessment Using Fasting Volunteers
title_full	Microwave Hydration Monitoring: System Assessment Using Fasting Volunteers
title_fullStr	Microwave Hydration Monitoring: System Assessment Using Fasting Volunteers
title_full_unstemmed	Microwave Hydration Monitoring: System Assessment Using Fasting Volunteers
title_sort	microwave hydration monitoring: system assessment using fasting volunteers
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/e5a75f41ad254d91af48cce9fd5d6fdd
work_keys_str_mv	AT brendoncbesler microwavehydrationmonitoringsystemassessmentusingfastingvolunteers AT elisecfear microwavehydrationmonitoringsystemassessmentusingfastingvolunteers
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Microwave Hydration Monitoring: System Assessment Using Fasting Volunteers

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