Investigation of below injury muscle signals as a command source for a motor neuroprosthesis
Year: 2011
Type: article
Abstract: The objective of this project is to investigate muscle signals from below the injury level in individuals with motor complete spinal cord injury.Implanted neuroprostheses use functional electrical stimulation to restore function to individuals with spinal cord injury.A command signal is required to control each restored function.Currently, muscle signals from above the injury are used as a command source.As neuroprostheses advance in complexity, more command signals will be required to control the additional functions.Thus, this project was designed to evaluate potential sources of additional command information.Although visual movement is not present in muscles below the injury level in the motor complete SCI population, it is possible to detect volitional electromyographic (EMG) activity in some muscles.Results discussed here indicate that training with visual feedback may improve the amplitude and reliability of small muscle signals.Additionally, a proof of concept demonstration showed that clinically paralyzed muscles are a viable option for use as a command signal for an implanted, upper extremity neuroprosthesis.
Author: Christa Moss
Institution: Case Western Reserve University
Language: English
Subfield: Biomedical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2341683377