Next Article in Journal
Cyber-Physical System Security of a Power Grid: State-of-the-Art
Next Article in Special Issue
A Multi-Modal Sensing Glove for Human Manual-Interaction Studies
Previous Article in Journal / Special Issue
Analysis of In-to-Out Wireless Body Area Network Systems: Towards QoS-Aware Health Internet of Things Applications
Open AccessArticle

A Galvanic Coupling Method for Assessing Hydration Rates

College of Engineering & Science, Victoria University, Melbourne, VIC 8001, Australia
*
Author to whom correspondence should be addressed.
Academic Editors: Enzo Pasquale Scilingo and Gaetano Valenza
Electronics 2016, 5(3), 39; https://doi.org/10.3390/electronics5030039
Received: 30 May 2016 / Revised: 28 June 2016 / Accepted: 1 July 2016 / Published: 13 July 2016
Recent advances in biomedical sensors, data acquisition techniques, microelectronics and wireless communication systems opened up the use of wearable technology for ehealth monitoring. We introduce a galvanic coupled intrabody communication for monitoring human body hydration. Studies in hydration provide the information necessary for understanding the desired fluid levels for optimal performance of the body’s physiological and metabolic processes during exercise and activities of daily living. Current measurement techniques are mostly suitable for laboratory purposes due to their complexity and technical requirements. Less technical methods such as urine color observation and skin turgor testing are subjective and cannot be integrated into a wearable device. Bioelectrical impedance methods are popular but mostly used for estimating total body water with limited accuracy and sensitive to 800 mL–1000 mL change in body fluid levels. We introduce a non-intrusive and simple method of tracking hydration rates that can detect up to 1.30 dB reduction in attenuation when as little as 100 mL of water is consumed. Our results show that galvanic coupled intrabody signal propagation can provide qualitative hydration and dehydration rates in line with changes in an individual’s urine specific gravity and body mass. The real-time changes in galvanic coupled intrabody signal attenuation can be integrated into wearable electronic devices to evaluate body fluid levels on a particular area of interest and can aid diagnosis and treatment of fluid disorders such as lymphoedema. View Full-Text
Keywords: galvanic coupling; signal attenuation; hydration rates; body fluid level galvanic coupling; signal attenuation; hydration rates; body fluid level
Show Figures

Figure 1

MDPI and ACS Style

Asogwa, C.O.; Collins, S.F.; Mclaughlin, P.; Lai, D.T. A Galvanic Coupling Method for Assessing Hydration Rates. Electronics 2016, 5, 39.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop