Related Experiment Video
Updated: Jun 8, 2026
09:52
An Implantable System For Chronic In Vivo Electromyography
Published on: April 21, 2020
A dual-function dry electrode for electromyography recording and transcutaneous electrical stimulation
Maedeh Mohammadiazni1, Yue Zhou1, Ana Luisa Trejos2,3
1School of Biomedical Engineering, Western University, London, N6A 5B9, ON, Canada.
Scientific Reports
|March 2, 2026
Summary
A novel dual-function dry electrode integrates electromyography (EMG) sensing and transcutaneous electrical stimulation (TES). This innovation offers a user-friendly, cost-effective solution for neuromuscular assessment and therapy, particularly in rehabilitation settings.
Area of Science:
- Biomedical Engineering
- Rehabilitation Technology
Background:
- Electromyography (EMG) and transcutaneous electrical stimulation (TES) are crucial for neuromuscular assessment and therapy.
- Limited space for separate electrodes in small muscle groups (e.g., post-stroke rehab) hinders precise monitoring and targeted stimulation.
- Current wet electrodes require gel, causing user inconvenience.
Purpose of the Study:
- To explore the feasibility of a dual-function dry electrode for simultaneous EMG recording and TES.
- To evaluate the practical effectiveness of this integrated electrode for functional applications.
Main Methods:
- Developed a hand gesture recognition algorithm to assess EMG signal quality from the dual-function electrode.
- Forty participants performed six hand gestures wearing an armband with the integrated electrodes.
- Assessed TES performance by measuring stimulation intensity and induced torque, comparing results to a commercial electrode.
Main Results:
- The hand gesture recognition algorithm achieved 80.5% accuracy, comparable to a commercial Myo armband.
- No significant differences were found in stimulation intensity or induced torque compared to commercial electrodes.
- The dual-function dry electrode demonstrated reliable EMG signal acquisition and effective TES delivery.
Conclusions:
- A single dry electrode can effectively integrate both EMG sensing and TES functionalities.
- This technology offers potential for improved user comfort, reduced system complexity, and enhanced therapeutic outcomes in neuromuscular rehabilitation.
