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Extraction of the EPP Component from the Surface EMG
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Validation of Polymer-Based Screen-Printed Textile Electrodes for Surface EMG Detection.

D Pani, A Achilli, A Spanu

    IEEE Transactions on Neural Systems and Rehabilitation Engineering : a Publication of the IEEE Engineering in Medicine and Biology Society
    |May 31, 2019
    PubMed
    Summary

    New polymer-based textile electrodes offer a cost-effective alternative for surface electromyography (sEMG) signal detection. These screen-printed electrodes demonstrate performance comparable to conventional gelled electrodes in various conditions, showing promise for rehabilitation and wellness applications.

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    Area of Science:

    • Biomedical Engineering
    • Materials Science
    • Wearable Technology

    Background:

    • Advancements in textile electrodes are crucial for improving electrophysiological signal detection.
    • Surface electromyography (sEMG) is vital for rehabilitation, training, and muscle function assessment.
    • Existing gelled electrodes have limitations in long-term use and comfort.

    Purpose of the Study:

    • To validate the performance of novel polymer-based screen-printed textile electrodes for sEMG detection.
    • To compare the efficacy of these textile electrodes against conventional disposable gelled electrodes.
    • To assess the potential of textile electrodes in clinical and wellness monitoring.

    Main Methods:

    • Developed textile electrodes by depositing PEDOT:PSS onto cotton fabric.
    • Evaluated functional and electrical characteristics under dry, solid hydrogel, and saline solution skin-interface conditions.
    • Compared noise amplitude, electrode-skin impedance, and sEMG signal shape with conventional electrodes.

    Main Results:

    • Textile electrodes showed high similarity in noise amplitude and impedance to conventional electrodes with hydrogel or saline.
    • Electrically induced sEMG signal shape comparison yielded over 97% similarity across all conditions.
    • Preliminary dynamic tests (walking) confirmed feasibility for sEMG monitoring up to 35 minutes with saline.

    Conclusions:

    • Screen-printed textile electrodes are a viable and cost-effective alternative to conventional gelled electrodes for sEMG.
    • The developed electrodes meet textile industry production requirements.
    • This technology offers new possibilities for wearable sEMG monitoring in clinical and wellness settings.