Reliability of Bluetooth inertial sensors for assessing lower limb segment angles and stride length during gait

[Purpose] To assess the agreement between our custom Bluetooth IS system and the gold standard MOCAP system during gait. Bluetooth inertial movement sensors (IS) allow for real-time movement analysis with fewer restrictions than optoelectrical motion capture systems (MOCAP) and more accessibility th...

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Autores principales: Pitts, Jessica, Wang, Shuaijie, Bhatt, Tanvi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Society of Physical Therapy Science 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9444516/
https://www.ncbi.nlm.nih.gov/pubmed/36118656
http://dx.doi.org/10.1589/jpts.34.606
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author Pitts, Jessica
Wang, Shuaijie
Bhatt, Tanvi
author_facet Pitts, Jessica
Wang, Shuaijie
Bhatt, Tanvi
author_sort Pitts, Jessica
collection PubMed
description [Purpose] To assess the agreement between our custom Bluetooth IS system and the gold standard MOCAP system during gait. Bluetooth inertial movement sensors (IS) allow for real-time movement analysis with fewer restrictions than optoelectrical motion capture systems (MOCAP) and more accessibility than wireless IS systems. [Participants and Methods] We collected simultaneous Bluetooth IS and MOCAP data for 16 young participants walking at a self-selected speed. Sensors were placed on the right thigh and shank. Segment angles and stride length were calculated and compared between systems using Pearson’s correlation coefficients (R), intra-class correlation coefficients (ICC), root mean square errors (RMSE), limits of agreement (LOA), and Bland-Altman plots. [Results] R values ranged from 0.371–0.715; ICC values ranged from 0.263–0.770. RMSE was 0.369 m for stride length and ranged from 6.85–13.07° in segment angles. Limits of agreement were −0.01–0.66 m for stride length and ranged from −27.71–20.53° in segment angles. [Conclusion] The Bluetooth IS system showed moderate agreement with MOCAP. Bluetooth IS could be used for reliable gait analysis with fewer space requirements and more portability than wireless IS or MOCAP systems. Bluetooth IS could be used outside of the clinic for real-time monitoring of gait during daily life.
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spelling pubmed-94445162022-09-16 Reliability of Bluetooth inertial sensors for assessing lower limb segment angles and stride length during gait Pitts, Jessica Wang, Shuaijie Bhatt, Tanvi J Phys Ther Sci Original Article [Purpose] To assess the agreement between our custom Bluetooth IS system and the gold standard MOCAP system during gait. Bluetooth inertial movement sensors (IS) allow for real-time movement analysis with fewer restrictions than optoelectrical motion capture systems (MOCAP) and more accessibility than wireless IS systems. [Participants and Methods] We collected simultaneous Bluetooth IS and MOCAP data for 16 young participants walking at a self-selected speed. Sensors were placed on the right thigh and shank. Segment angles and stride length were calculated and compared between systems using Pearson’s correlation coefficients (R), intra-class correlation coefficients (ICC), root mean square errors (RMSE), limits of agreement (LOA), and Bland-Altman plots. [Results] R values ranged from 0.371–0.715; ICC values ranged from 0.263–0.770. RMSE was 0.369 m for stride length and ranged from 6.85–13.07° in segment angles. Limits of agreement were −0.01–0.66 m for stride length and ranged from −27.71–20.53° in segment angles. [Conclusion] The Bluetooth IS system showed moderate agreement with MOCAP. Bluetooth IS could be used for reliable gait analysis with fewer space requirements and more portability than wireless IS or MOCAP systems. Bluetooth IS could be used outside of the clinic for real-time monitoring of gait during daily life. The Society of Physical Therapy Science 2022-09-01 2022-09 /pmc/articles/PMC9444516/ /pubmed/36118656 http://dx.doi.org/10.1589/jpts.34.606 Text en 2022©by the Society of Physical Therapy Science. Published by IPEC Inc. https://creativecommons.org/licenses/by-nc-nd/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial No Derivatives (by-nc-nd) License. (CC-BY-NC-ND 4.0: https://creativecommons.org/licenses/by-nc-nd/4.0/)
spellingShingle Original Article
Pitts, Jessica
Wang, Shuaijie
Bhatt, Tanvi
Reliability of Bluetooth inertial sensors for assessing lower limb segment angles and stride length during gait
title Reliability of Bluetooth inertial sensors for assessing lower limb segment angles and stride length during gait
title_full Reliability of Bluetooth inertial sensors for assessing lower limb segment angles and stride length during gait
title_fullStr Reliability of Bluetooth inertial sensors for assessing lower limb segment angles and stride length during gait
title_full_unstemmed Reliability of Bluetooth inertial sensors for assessing lower limb segment angles and stride length during gait
title_short Reliability of Bluetooth inertial sensors for assessing lower limb segment angles and stride length during gait
title_sort reliability of bluetooth inertial sensors for assessing lower limb segment angles and stride length during gait
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9444516/
https://www.ncbi.nlm.nih.gov/pubmed/36118656
http://dx.doi.org/10.1589/jpts.34.606
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