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Sensors 2018, 18(8), 2582; https://doi.org/10.3390/s18082582

An Inexpensive and Easy to Use Cervical Range of Motion Measurement Solution Using Inertial Sensors

1
Department of Information Systems Engineering, University San Pablo CEU, Bodilla del Monte, 28668 Madrid, Spain
2
Werium Solutions, Arganda del Rey, 28500 Madrid, Spain
Current address: Escuela Politecnica Superior, Universidad San Pablo CEU, Urb. Monteprincipe S/N, Boadilla del Monte, 28668 Madrid, Spain.
These authors contributed equally to this work.
*
Author to whom correspondence should be addressed.
Received: 31 May 2018 / Revised: 27 July 2018 / Accepted: 3 August 2018 / Published: 7 August 2018
(This article belongs to the Special Issue Wearable Smart Devices)
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Abstract

Neck injuries and the related pain have a high prevalence and represent an important health problem. To properly diagnose and treat them, practitioners need an accurate system for measuring Cervical Range Of Motion (CROM). This article describes the development and validation of an inexpensive, small (4 cm × 4 cm × 8 cm), light (< 200 g) and easy to use solution for measuring CROM using wearable inertial sensors. The proposed solution has been designed with the clinical practice in mind, after consulting with practitioners. It is composed of: (a) two wearable wireless MEMS-based inertial devices, (b) a recording and report generation software application and (c) a measurement protocol for assessing CROM. The solution provides accurate (none of our results is outside the ROM ranges when compared with previously published results based on an optical tracking device) and reliable measurements (ICC = 0.93 for interrater reliability when compared with an optical tracking device and ICC > 0.90 for test-retest reliability), surpassing the popular CROM instrument’s capabilities and precision. It also fulfills the needs for clinical practice attending to effectiveness, efficiency (4 min from setup to final report) and user’s satisfaction (as reported by practitioners). The solution has been certified for mass-production and use in medical environments.
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Keywords: CROM; inertial sensor; wearable sensor; neck pain; diagnosis; assessment CROM; inertial sensor; wearable sensor; neck pain; diagnosis; assessment
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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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Raya, R.; Garcia-Carmona, R.; Sanchez, C.; Urendes, E.; Ramirez, O.; Martin, A.; Otero, A. An Inexpensive and Easy to Use Cervical Range of Motion Measurement Solution Using Inertial Sensors. Sensors 2018, 18, 2582.

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