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Validity and Reliability of Inertial Measurement Unit (IMU)-Derived 3D Joint Kinematics in Persons Wearing Transtibial Prosthesis

Background: A validity and reliability assessment of inertial measurement unit (IMU)-derived joint angular kinematics during walking is a necessary step for motion analysis in the lower extremity prosthesis user population. This study aimed to assess the accuracy and reliability of an inertial measu...

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Autores principales: Rattanakoch, Jutima, Samala, Manunchaya, Limroongreungrat, Weerawat, Guerra, Gary, Tharawadeepimuk, Kittichai, Nanbancha, Ampika, Niamsang, Wisavaporn, Kerdsomnuek, Pichitpol, Suwanmana, Sarit
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9920655/
https://www.ncbi.nlm.nih.gov/pubmed/36772783
http://dx.doi.org/10.3390/s23031738
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author Rattanakoch, Jutima
Samala, Manunchaya
Limroongreungrat, Weerawat
Guerra, Gary
Tharawadeepimuk, Kittichai
Nanbancha, Ampika
Niamsang, Wisavaporn
Kerdsomnuek, Pichitpol
Suwanmana, Sarit
author_facet Rattanakoch, Jutima
Samala, Manunchaya
Limroongreungrat, Weerawat
Guerra, Gary
Tharawadeepimuk, Kittichai
Nanbancha, Ampika
Niamsang, Wisavaporn
Kerdsomnuek, Pichitpol
Suwanmana, Sarit
author_sort Rattanakoch, Jutima
collection PubMed
description Background: A validity and reliability assessment of inertial measurement unit (IMU)-derived joint angular kinematics during walking is a necessary step for motion analysis in the lower extremity prosthesis user population. This study aimed to assess the accuracy and reliability of an inertial measurement unit (IMU) system compared to an optical motion capture (OMC) system in transtibial prosthesis (TTP) users. Methods: Thirty TTP users were recruited and underwent simultaneous motion capture from IMU and OMC systems during walking. Reliability and validity were assessed using intra- and inter-subject variability with standard deviation (S.D.), average S.D., and intraclass correlation coefficient (ICC). Results: The intra-subject S.D. for all rotations of the lower limb joints were less than 1° for both systems. The IMU system had a lower mean S.D. ((o)), as seen in inter-subject variability. The ICC revealed good to excellent agreement between the two systems for all sagittal kinematic parameters. Conclusion: All joint angular kinematic comparisons supported the IMU system’s results as comparable to OMC. The IMU was capable of precise sagittal plane motion data and demonstrated validity and reliability to OMC. These findings evidence that when compared to OMC, an IMU system may serve well in evaluating the gait of lower limb prosthesis users.
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spelling pubmed-99206552023-02-12 Validity and Reliability of Inertial Measurement Unit (IMU)-Derived 3D Joint Kinematics in Persons Wearing Transtibial Prosthesis Rattanakoch, Jutima Samala, Manunchaya Limroongreungrat, Weerawat Guerra, Gary Tharawadeepimuk, Kittichai Nanbancha, Ampika Niamsang, Wisavaporn Kerdsomnuek, Pichitpol Suwanmana, Sarit Sensors (Basel) Article Background: A validity and reliability assessment of inertial measurement unit (IMU)-derived joint angular kinematics during walking is a necessary step for motion analysis in the lower extremity prosthesis user population. This study aimed to assess the accuracy and reliability of an inertial measurement unit (IMU) system compared to an optical motion capture (OMC) system in transtibial prosthesis (TTP) users. Methods: Thirty TTP users were recruited and underwent simultaneous motion capture from IMU and OMC systems during walking. Reliability and validity were assessed using intra- and inter-subject variability with standard deviation (S.D.), average S.D., and intraclass correlation coefficient (ICC). Results: The intra-subject S.D. for all rotations of the lower limb joints were less than 1° for both systems. The IMU system had a lower mean S.D. ((o)), as seen in inter-subject variability. The ICC revealed good to excellent agreement between the two systems for all sagittal kinematic parameters. Conclusion: All joint angular kinematic comparisons supported the IMU system’s results as comparable to OMC. The IMU was capable of precise sagittal plane motion data and demonstrated validity and reliability to OMC. These findings evidence that when compared to OMC, an IMU system may serve well in evaluating the gait of lower limb prosthesis users. MDPI 2023-02-03 /pmc/articles/PMC9920655/ /pubmed/36772783 http://dx.doi.org/10.3390/s23031738 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/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 (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Rattanakoch, Jutima
Samala, Manunchaya
Limroongreungrat, Weerawat
Guerra, Gary
Tharawadeepimuk, Kittichai
Nanbancha, Ampika
Niamsang, Wisavaporn
Kerdsomnuek, Pichitpol
Suwanmana, Sarit
Validity and Reliability of Inertial Measurement Unit (IMU)-Derived 3D Joint Kinematics in Persons Wearing Transtibial Prosthesis
title Validity and Reliability of Inertial Measurement Unit (IMU)-Derived 3D Joint Kinematics in Persons Wearing Transtibial Prosthesis
title_full Validity and Reliability of Inertial Measurement Unit (IMU)-Derived 3D Joint Kinematics in Persons Wearing Transtibial Prosthesis
title_fullStr Validity and Reliability of Inertial Measurement Unit (IMU)-Derived 3D Joint Kinematics in Persons Wearing Transtibial Prosthesis
title_full_unstemmed Validity and Reliability of Inertial Measurement Unit (IMU)-Derived 3D Joint Kinematics in Persons Wearing Transtibial Prosthesis
title_short Validity and Reliability of Inertial Measurement Unit (IMU)-Derived 3D Joint Kinematics in Persons Wearing Transtibial Prosthesis
title_sort validity and reliability of inertial measurement unit (imu)-derived 3d joint kinematics in persons wearing transtibial prosthesis
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9920655/
https://www.ncbi.nlm.nih.gov/pubmed/36772783
http://dx.doi.org/10.3390/s23031738
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