Evaluation of Upper Body and Lower Limbs Kinematics through an <i>IMU</i>-Based Medical System: A Comparative Study with the Optoelectronic System
In recent years, the use of inertial-based systems has been applied to remote rehabilitation, opening new perspectives for outpatient assessment. In this study, we assessed the accuracy and the concurrent validity of the angular measurements provided by an inertial-based device for rehabilitation wi...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-07-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/23/13/6156 |
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| author | Serena Cerfoglio Paolo Capodaglio Paolo Rossi Ilaria Conforti Valentina D’Angeli Elia Milani Manuela Galli Veronica Cimolin |
| author_facet | Serena Cerfoglio Paolo Capodaglio Paolo Rossi Ilaria Conforti Valentina D’Angeli Elia Milani Manuela Galli Veronica Cimolin |
| author_sort | Serena Cerfoglio |
| collection | DOAJ |
| description | In recent years, the use of inertial-based systems has been applied to remote rehabilitation, opening new perspectives for outpatient assessment. In this study, we assessed the accuracy and the concurrent validity of the angular measurements provided by an inertial-based device for rehabilitation with respect to the state-of-the-art system for motion tracking. Data were simultaneously collected with the two systems across a set of exercises for trunk and lower limbs, performed by 21 healthy participants. Additionally, the sensitivity of the inertial measurement unit (<i>IMU</i>)-based system to its malpositioning was assessed. Root mean square error (<i>RMSE</i>) was used to explore the differences in the outputs of the two systems in terms of range of motion (<i>ROM</i>), and their agreement was assessed via Pearson’s correlation coefficient (PCC) and Lin’s concordance correlation coefficient (CCC). The results showed that the <i>IMU</i>-based system was able to assess upper-body and lower-limb kinematics with a mean error in general lower than 5° and that its measurements were moderately biased by its mispositioning. Although the system does not seem to be suitable for analysis requiring a high level of detail, the findings of this study support the application of the device in rehabilitation programs in unsupervised settings, providing reliable data to remotely monitor the progress of the rehabilitation pathway and change in patient’s motor function. |
| first_indexed | 2024-03-11T01:28:23Z |
| format | Article |
| id | doaj.art-73e52971877b42039863dbadf2487b1d |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-11T01:28:23Z |
| publishDate | 2023-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-73e52971877b42039863dbadf2487b1d2023-11-18T17:31:23ZengMDPI AGSensors1424-82202023-07-012313615610.3390/s23136156Evaluation of Upper Body and Lower Limbs Kinematics through an <i>IMU</i>-Based Medical System: A Comparative Study with the Optoelectronic SystemSerena Cerfoglio0Paolo Capodaglio1Paolo Rossi2Ilaria Conforti3Valentina D’Angeli4Elia Milani5Manuela Galli6Veronica Cimolin7Department of Electronics, Information and Bioengineering, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, ItalyOrthopaedic Rehabilitation Unit and Research Laboratory in Biomechanics, Rehabilitation and Ergonomics, San Giuseppe Hospital, IRCCS Istituto Auxologico Italiano, Strada Luigi Cadorna 90, 28824 Piancavallo, ItalyClinica Hildebrand, Centro di Riabilitazione Brissago, Via Crodolo 18, 6614 Brissago, SwitzerlandEuleria Health Società Benefit Rovereto, 38068 Trento, ItalyEuleria Health Società Benefit Rovereto, 38068 Trento, ItalyEuleria Health Società Benefit Rovereto, 38068 Trento, ItalyDepartment of Electronics, Information and Bioengineering, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, ItalyDepartment of Electronics, Information and Bioengineering, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, ItalyIn recent years, the use of inertial-based systems has been applied to remote rehabilitation, opening new perspectives for outpatient assessment. In this study, we assessed the accuracy and the concurrent validity of the angular measurements provided by an inertial-based device for rehabilitation with respect to the state-of-the-art system for motion tracking. Data were simultaneously collected with the two systems across a set of exercises for trunk and lower limbs, performed by 21 healthy participants. Additionally, the sensitivity of the inertial measurement unit (<i>IMU</i>)-based system to its malpositioning was assessed. Root mean square error (<i>RMSE</i>) was used to explore the differences in the outputs of the two systems in terms of range of motion (<i>ROM</i>), and their agreement was assessed via Pearson’s correlation coefficient (PCC) and Lin’s concordance correlation coefficient (CCC). The results showed that the <i>IMU</i>-based system was able to assess upper-body and lower-limb kinematics with a mean error in general lower than 5° and that its measurements were moderately biased by its mispositioning. Although the system does not seem to be suitable for analysis requiring a high level of detail, the findings of this study support the application of the device in rehabilitation programs in unsupervised settings, providing reliable data to remotely monitor the progress of the rehabilitation pathway and change in patient’s motor function.https://www.mdpi.com/1424-8220/23/13/6156rehabilitationtele-rehabilitationinertial sensorsmotion analysisfunctional assessmentexercise therapy |
| spellingShingle | Serena Cerfoglio Paolo Capodaglio Paolo Rossi Ilaria Conforti Valentina D’Angeli Elia Milani Manuela Galli Veronica Cimolin Evaluation of Upper Body and Lower Limbs Kinematics through an <i>IMU</i>-Based Medical System: A Comparative Study with the Optoelectronic System Sensors rehabilitation tele-rehabilitation inertial sensors motion analysis functional assessment exercise therapy |
| title | Evaluation of Upper Body and Lower Limbs Kinematics through an <i>IMU</i>-Based Medical System: A Comparative Study with the Optoelectronic System |
| title_full | Evaluation of Upper Body and Lower Limbs Kinematics through an <i>IMU</i>-Based Medical System: A Comparative Study with the Optoelectronic System |
| title_fullStr | Evaluation of Upper Body and Lower Limbs Kinematics through an <i>IMU</i>-Based Medical System: A Comparative Study with the Optoelectronic System |
| title_full_unstemmed | Evaluation of Upper Body and Lower Limbs Kinematics through an <i>IMU</i>-Based Medical System: A Comparative Study with the Optoelectronic System |
| title_short | Evaluation of Upper Body and Lower Limbs Kinematics through an <i>IMU</i>-Based Medical System: A Comparative Study with the Optoelectronic System |
| title_sort | evaluation of upper body and lower limbs kinematics through an i imu i based medical system a comparative study with the optoelectronic system |
| topic | rehabilitation tele-rehabilitation inertial sensors motion analysis functional assessment exercise therapy |
| url | https://www.mdpi.com/1424-8220/23/13/6156 |
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