Sensor Positioning Influences the Accuracy of Knee Rom Data of an E-Rehabilitation System: A Preliminary Study with Healthy Subjects

Marques, Carlos J.; Bauer, Christian; Grimaldo, Dafne; Tabeling, Steffen; Weber, Timo; Ehlert, Alexander; Mendes, Alexandre H.; Lorenz, Juergen; Lampe, Frank

doi:10.3390/s20082237

Cited by 9 publications

(3 citation statements)

References 31 publications

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“…We have provided important information that could be used to design and implement future studies. Consistent inertial sensor placement on the body is known to be important (44,45). While half of our participants performed the at-home assessment after wearing the sensors on their own without any prior familiarity, all participants were provided instructions and were also guided by researchers in real-time via video.…”

Section: Discussionmentioning

confidence: 99%

Reliability of Wearable Sensors for Assessing Gait and Chair Stand Function at Home in People With Knee Osteoarthritis

Rose

Neogi

Friscia

et al. 2023

Arthritis Care & Research

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ObjectiveTo assess the reliability of wearable sensors for at‐home assessment of walking and chair stand activities in people with knee osteoarthritis (OA).MethodsBaseline data from participants with knee OA (n = 20) enrolled in a clinical trial of an exercise intervention were used. Participants completed an in‐person laboratory visit and a video conference–enabled at‐home visit. In both visits, participants performed walking and chair stand tasks while fitted with 3 inertial sensors. During the at‐home visit, participants self‐donned the sensors and completed 2 sets of acquisitions separated by a 15‐minute break, when they removed and redonned the sensors. Participants completed a survey on their experience with the at‐home visit. During the laboratory visit, researchers placed the sensors on the participants. Spatiotemporal metrics of walking gait and chair stand duration were extracted from the sensor data. We used intraclass correlation coefficients (ICCs) and the Bland‐Altman plot for statistical analyses.ResultsFor test–retest reliability during the at‐home visit, all ICCs were good to excellent (0.85–0.95). For agreement between at‐home and laboratory visits, ICCs were moderate to good (0.59–0.87). Systematic differences were noted between at‐home and laboratory data due to faster task speed during the laboratory visits. Participants reported a favorable experience during the at‐home visit.ConclusionOur method of estimating spatiotemporal gait measures and chair stand duration function remotely was reliable, feasible, and acceptable in people with knee OA. Wearable sensors could be used to remotely assess walking and chair stand in participant's natural environments in future studies.

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Section: Discussionmentioning

confidence: 99%

Reliability of Wearable Sensors for Assessing Gait and Chair Stand Function at Home in People With Knee Osteoarthritis

Rose

Neogi

Friscia

et al. 2023

Arthritis Care & Research

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“…The sensor device was worn during the movement exercises and aligned in space using a rotation sensor. The validity of the motion sensor has been proven in a laboratory setting with healthy adults [19]…”

Section: External Motion Sensormentioning

confidence: 99%

Musculoskeletal Rehabilitation: New Perspectives in Postoperative Care Following Total Knee Arthroplasty Using an External Motion Sensor and a Smartphone Application for Remote Monitoring

Neumann-Langen,

Ochs,

Lützner

et al. 2023

JCM

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Background: The number of total knee replacements performed annually is steadily increasing. Parallel options for postoperative care are decreasing, which reduces patient satisfaction. External devices to support physical rehabilitation and health monitoring will improve patient satisfaction and postoperative care. Methods: In a prospective, international multicenter study, patients were asked to use an external motion sensor and a smartphone application during the postoperative course of primary total knee arthroplasty. The collected data were transferred to a data platform, allowing for the real-time evaluation of patient data. Results: In three participating centers, 98 patients were included. The general acceptance of using the sensor and app was high, with an overall compliance in study participation rate of up to 76%. The early results showed a significant improvement in the overall quality of life (p < 0.001) and significant reductions in pain (p < 0.01) and depression (p < 0.001). Conclusions: The early results of this clinical and multicenter study emphasize that there is a high interest in and acceptance of digital solutions in patients’ treatment pathways. Motion sensor and smartphone applications support patients in early rehabilitation.

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“…The findings showed that the method was capable of improving the measured ROM accuracy. The authors of [ 16 ] investigated how sensor location affects the accuracy of knee ROM in a rehabilitation system. An investigation was carried out in a laboratory with healthy persons in a sitting position.…”

Section: Introductionmentioning

confidence: 99%

Development of a Real-Time Knee Extension Monitoring and Rehabilitation System: Range of Motion and Surface EMG Measurement and Evaluation

et al. 2022

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In this paper, a real-time knee extension monitoring and rehabilitation system for people, such as patients, the elderly, athletes, etc., is developed and tested. The proposed system has three major functions. The first function is two-channel surface electromyography (EMG) signal measurement and processing for the vastus lateralis (VL) and vastus medialis (VM) muscles using a developed EMG device set. The second function is the knee extension range of motion (ROM) measurement using an angle sensor device set (i.e., accelerometer sensor). Both functions are connected and parallelly processed by the NI-myRIO embedded device. Finally, the third function is the graphical user interface (GUI) using LabVIEW, where the knee rehabilitation program can be defined and flexibly set, as recommended by physical therapists and physicians. Experimental results obtained from six healthy subjects demonstrated that the proposed system can efficiently work with real-time response. It can support multiple rehabilitation users with data collection, where EMG signals with mean absolute value (MAV) and root mean square value (RMS) results and knee extension ROM data can be automatically measured and recorded based on the defined rehabilitation program. Furthermore, the proposed system is also employed in the hospital for validation and evaluation, where bio-feedback EMG and ROM data from six patients, including (a) knee osteoarthritis, (b) herniated disc, (c) knee ligament injury, (d) ischemic stroke, (e) hemorrhagic stroke, and (f) Parkinson are obtained. Such data are also collected for one month for tracking, evaluation, and treatment. With our proposed system, results indicate that the rehabilitation people can practice themselves and know their rehabilitation progress during the time of testing. The system can also evaluate (as a primary treatment) whether the therapy training is successful or not, while experts can simultaneously review the progress and set the optimal treatment program in response to the rehabilitation users. This technology can also be integrated as a part of the Internet of Things (IoT) and smart healthcare systems.

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Sensor Positioning Influences the Accuracy of Knee Rom Data of an E-Rehabilitation System: A Preliminary Study with Healthy Subjects

Cited by 9 publications

References 31 publications

Reliability of Wearable Sensors for Assessing Gait and Chair Stand Function at Home in People With Knee Osteoarthritis

Reliability of Wearable Sensors for Assessing Gait and Chair Stand Function at Home in People With Knee Osteoarthritis

Musculoskeletal Rehabilitation: New Perspectives in Postoperative Care Following Total Knee Arthroplasty Using an External Motion Sensor and a Smartphone Application for Remote Monitoring

Development of a Real-Time Knee Extension Monitoring and Rehabilitation System: Range of Motion and Surface EMG Measurement and Evaluation

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