Wearable Sensor-Based Exercise Biofeedback for Orthopaedic Rehabilitation: A Mixed Methods User Evaluation of a
Rob Argent1,2,3, Patrick Slevin4,5, Antonio Bevilacqua6
1Beacon Hospital, Sandyford, Dublin 18, Ireland. rob.argent@insight-centre.org.
Sensors (Basel, Switzerland)
|January 24, 2019
Summary
Patients found wearable biofeedback systems usable and valuable for knee replacement rehabilitation. User evaluation during development is crucial for improving these systems.
Area of Science:
- Biomedical Engineering
- Rehabilitation Technology
- Human-Computer Interaction
Background:
- Wearable biofeedback systems are increasingly used in exercise rehabilitation.
- End-user evaluation is often missing in the development of these systems.
- This gap hinders the optimization of rehabilitation technology.
Purpose of the Study:
- To evaluate a sensor-based biofeedback system for post-knee replacement rehabilitation.
- Investigate the system's feasibility, usability, perceived impact, and user experience.
- Highlight the importance of user feedback in system design.
Main Methods:
- A cohort of 15 knee replacement patients used the system at home for two weeks.
- Data collected via System Usability Scale (SUS), user version of Mobile Application Rating Scale (uMARS), and semi-structured interviews.
- Adherence rate and qualitative feedback were analyzed.
Main Results:
- High usability indicated by SUS score (mean = 90.8).
- Positive user experience reported, with a 79% adherence rate.
- Overall quality score of 4.1/5 (uMARS), though bugs and feature suggestions were noted.
Conclusions:
- Patients perceive significant value in wearable biofeedback systems for rehabilitation.
- User evaluation is essential for effective system design and development.
- Real-world accuracy validation is needed for future iterations.
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