Myoelectric signal from below the level of spinal cord injury as a command source for an implanted upper extremity neuroprosthesis - a case report

Journal of Neuroengineering and Rehabilitation
Elizabeth HealdP Hunter Peckham

Abstract

Implanted motor neuroprostheses offer significant restoration of function for individuals with spinal cord injury. Providing adequate user control for these devices is a challenge but is crucial for successful performance. Electromyographic (EMG) signals can serve as effective control sources, but the number of above-injury muscles suitable to provide EMG-based control signals is very limited. Previous work has shown the presence of below-injury volitional myoelectric signals even in subjects diagnosed with motor complete spinal cord injury. In this case report, we present a demonstration of a hand grasp neuroprosthesis being controlled by a user with a C6 level, motor complete injury through EMG signals from their toe flexor. These signals were successfully translated into a functional grasp output, which performed similarly to the participant's usual shoulder position control in a grasp-release functional test. This proof-of-concept demonstrates the potential for below-injury myoelectric activity to serve as a novel form of neuroprosthesis control.

References

Sep 1, 1990·IEEE Transactions on Bio-medical Engineering·M W Johnson, P H Peckham
Jul 1, 1989·IEEE Transactions on Bio-medical Engineering·K L KilgoreK A Gallaher-Stone
Jun 19, 1998·IEEE Transactions on Rehabilitation Engineering : a Publication of the IEEE Engineering in Medicine and Biology Society·R L HartP H Peckham
Oct 6, 2001·Archives of Physical Medicine and Rehabilitation·P H PeckhamUNKNOWN Implantable Neuroprosthesis Research Group
Apr 15, 2008·The Journal of Hand Surgery·Kevin L KilgoreP Hunter Peckham
Jun 23, 2011·Neurorehabilitation and Neural Repair·Christa W MossP Hunter Peckham
Apr 27, 2017·Neurorehabilitation and Neural Repair·Elizabeth HealdP Hunter Peckham
Aug 18, 2017·IEEE ... International Conference on Rehabilitation Robotics : [proceedings]·C PierellaM Casadio
Jul 13, 2018·Topics in Spinal Cord Injury Rehabilitation·Kevin L KilgoreP Hunter Peckham
Apr 8, 2019·Physical Medicine and Rehabilitation Clinics of North America·Richard D WilsonJayme S Knutson

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Citations

Sep 21, 2021·Physiological Reviews·Chethan Pandarinath, Sliman J Bensmaia

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