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Sensors 2015, 15(10), 25681-25702; doi:10.3390/s151025681

A Multi-Channel Opto-Electronic Sensor to Accurately Monitor Heart Rate against Motion Artefact during Exercise

1
Wolfson School of Mechanical, Manufacturing and Electrical Engineering, Loughborough University, Ashby Road, Loughborough, Leicestershire LE11 3TU, UK
2
National Centre for Sport and Exercise Medicine, School of Sport, Exercise and Health Sciences, Loughborough University, Ashby Road, Loughborough, Leicestershire LE11 3TU, UK
3
Cambridge Consultants Limited, Science Park, Milton Road, Cambridge CB4 0DW, UK
4
Université Paris-Sud 11, Polytech’Paris-Sud–Service des stages, Bât 620, Orsaycedex 91405, France
These authors contributed equally to this work.
*
Author to whom correspondence should be addressed.
Academic Editors: Steffen Leonhardt and Daniel Teichmann
Received: 30 July 2015 / Revised: 27 September 2015 / Accepted: 29 September 2015 / Published: 12 October 2015
(This article belongs to the Special Issue Noninvasive Biomedical Sensors)

Abstract

This study presents the use of a multi-channel opto-electronic sensor (OEPS) to effectively monitor critical physiological parameters whilst preventing motion artefact as increasingly demanded by personal healthcare. The aim of this work was to study how to capture the heart rate (HR) efficiently through a well-constructed OEPS and a 3-axis accelerometer with wireless communication. A protocol was designed to incorporate sitting, standing, walking, running and cycling. The datasets collected from these activities were processed to elaborate sport physiological effects. t-test, Bland-Altman Agreement (BAA), and correlation to evaluate the performance of the OEPS were used against Polar and Mio-Alpha HR monitors. No differences in the HR were found between OEPS, and either Polar or Mio-Alpha (both p > 0.05); a strong correlation was found between Polar and OEPS (r: 0.96, p < 0.001); the bias of BAA 0.85 bpm, the standard deviation (SD) 9.20 bpm, and the limits of agreement (LOA) from −17.18 bpm to +18.88 bpm. For the Mio-Alpha and OEPS, a strong correlation was found (r: 0.96, p < 0.001); the bias of BAA 1.63 bpm, SD 8.62 bpm, LOA from −15.27 bpm to +18.58 bpm. These results demonstrate the OEPS to be capable of carrying out real time and remote monitoring of heart rate. View Full-Text
Keywords: multi-channel opto-electronics; accelerometer; motion artefact; sport physiological monitoring; heart rate; pulse wave; vital signs; wearables multi-channel opto-electronics; accelerometer; motion artefact; sport physiological monitoring; heart rate; pulse wave; vital signs; wearables
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. (CC BY 4.0).

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MDPI and ACS Style

Alzahrani, A.; Hu, S.; Azorin-Peris, V.; Barrett, L.; Esliger, D.; Hayes, M.; Akbare, S.; Achart, J.; Kuoch, S. A Multi-Channel Opto-Electronic Sensor to Accurately Monitor Heart Rate against Motion Artefact during Exercise. Sensors 2015, 15, 25681-25702.

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