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A Validation Study of a Polymer Optical Fiber Sensor for Monitoring Lumbar Spine Movement

This study aims to investigate the validity and reliability of a novel plastic optical fiber (POF) sensor, which was developed to measure the angles of flexion, extension and lateral bend at the lumbar region. The angles of flexion, extension and lateral bend for a standing position were measured si...

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Autores principales: Kam, Wern, O’Keeffe, Mary, O’Sullivan, Kieran, Mohammed, Waleed S., O’Keeffe, Sinead, Lewis, Elfed, Viphavakit, Charusluk
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6427704/
https://www.ncbi.nlm.nih.gov/pubmed/30845643
http://dx.doi.org/10.3390/ma12050762
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author Kam, Wern
O’Keeffe, Mary
O’Sullivan, Kieran
Mohammed, Waleed S.
O’Keeffe, Sinead
Lewis, Elfed
Viphavakit, Charusluk
author_facet Kam, Wern
O’Keeffe, Mary
O’Sullivan, Kieran
Mohammed, Waleed S.
O’Keeffe, Sinead
Lewis, Elfed
Viphavakit, Charusluk
author_sort Kam, Wern
collection PubMed
description This study aims to investigate the validity and reliability of a novel plastic optical fiber (POF) sensor, which was developed to measure the angles of flexion, extension and lateral bend at the lumbar region. The angles of flexion, extension and lateral bend for a standing position were measured simultaneously using both the novel POF sensor of this investigation and the commercial Biometrics goniometer instrument. Each movement had two steps of bending which were 10° and 20° based on inclinometer readings. The POF sensor had good intra-rater reliability (Intraclass correlation coefficient, ICC = 0.61 to 0.83). Bland–Altman plots were used to study the agreement using these two sensors. There were proportional differences and bias between the POF sensor and Biometrics goniometer, as the zero points did not lie in the percentage difference region in the Bland–Altman plots. The proportional difference between these two likely reflects the different sizes and thus, measurement regions of the two sensors. There was also strong correlation between the two sensors (r > 0.77). Hence, the POF sensor could be of potential utility in measuring lumbar range of motion (ROM) in a manner which is minimally invasive, and where discrete sections of the spine are under specific investigation.
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spelling pubmed-64277042019-04-15 A Validation Study of a Polymer Optical Fiber Sensor for Monitoring Lumbar Spine Movement Kam, Wern O’Keeffe, Mary O’Sullivan, Kieran Mohammed, Waleed S. O’Keeffe, Sinead Lewis, Elfed Viphavakit, Charusluk Materials (Basel) Article This study aims to investigate the validity and reliability of a novel plastic optical fiber (POF) sensor, which was developed to measure the angles of flexion, extension and lateral bend at the lumbar region. The angles of flexion, extension and lateral bend for a standing position were measured simultaneously using both the novel POF sensor of this investigation and the commercial Biometrics goniometer instrument. Each movement had two steps of bending which were 10° and 20° based on inclinometer readings. The POF sensor had good intra-rater reliability (Intraclass correlation coefficient, ICC = 0.61 to 0.83). Bland–Altman plots were used to study the agreement using these two sensors. There were proportional differences and bias between the POF sensor and Biometrics goniometer, as the zero points did not lie in the percentage difference region in the Bland–Altman plots. The proportional difference between these two likely reflects the different sizes and thus, measurement regions of the two sensors. There was also strong correlation between the two sensors (r > 0.77). Hence, the POF sensor could be of potential utility in measuring lumbar range of motion (ROM) in a manner which is minimally invasive, and where discrete sections of the spine are under specific investigation. MDPI 2019-03-06 /pmc/articles/PMC6427704/ /pubmed/30845643 http://dx.doi.org/10.3390/ma12050762 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Kam, Wern
O’Keeffe, Mary
O’Sullivan, Kieran
Mohammed, Waleed S.
O’Keeffe, Sinead
Lewis, Elfed
Viphavakit, Charusluk
A Validation Study of a Polymer Optical Fiber Sensor for Monitoring Lumbar Spine Movement
title A Validation Study of a Polymer Optical Fiber Sensor for Monitoring Lumbar Spine Movement
title_full A Validation Study of a Polymer Optical Fiber Sensor for Monitoring Lumbar Spine Movement
title_fullStr A Validation Study of a Polymer Optical Fiber Sensor for Monitoring Lumbar Spine Movement
title_full_unstemmed A Validation Study of a Polymer Optical Fiber Sensor for Monitoring Lumbar Spine Movement
title_short A Validation Study of a Polymer Optical Fiber Sensor for Monitoring Lumbar Spine Movement
title_sort validation study of a polymer optical fiber sensor for monitoring lumbar spine movement
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6427704/
https://www.ncbi.nlm.nih.gov/pubmed/30845643
http://dx.doi.org/10.3390/ma12050762
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