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Sensors 2012, 12(10), 13813-13828; doi:10.3390/s121013813
Article

Two Proximal Skin Electrodes — A Respiration Rate Body Sensor

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Received: 20 August 2012 / Revised: 27 September 2012 / Accepted: 29 September 2012 / Published: 15 October 2012
(This article belongs to the Special Issue Body Sensor Networks for Healthcare and Pervasive Applications)
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Abstract

We propose a new body sensor for extracting the respiration rate based on the amplitude changes in the body surface potential differences between two proximal body electrodes. The sensor could be designed as a plaster-like reusable unit that can be easily fixed onto the surface of the body. It could be equipped either with a sufficiently large memory for storing the measured data or with a low-power radio system that can transmit the measured data to a gateway for further processing. We explore the influence of the sensor’s position on the quality of the extracted results using multi-channel ECG measurements and considering all the pairs of two neighboring electrodes as potential respiration-rate sensors. The analysis of the clinical measurements, which also include reference thermistor-based respiration signals, shows that the proposed approach is a viable option for monitoring the respiration frequency and for a rough classification of breathing types. The obtained results were evaluated on a wireless prototype of a respiration body sensor. We indicate the best positions for the respiration body sensor and prove that a single sensor for body surface potential difference on proximal skin electrodes can be used for combined measurements of respiratory and cardiac activities.
Keywords: ECG-Derived; respiration; body; sensor; skin electrode; wireless ECG-Derived; respiration; body; sensor; skin electrode; wireless
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Trobec, R.; Rashkovska, A.; Avbelj, V. Two Proximal Skin Electrodes — A Respiration Rate Body Sensor. Sensors 2012, 12, 13813-13828.

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