Body machine interfaces for neuromotor rehabilitation: a case study.

Area of Science:

• Neuroscience
• Rehabilitation Engineering
• Assistive Technology

Background:

• High-level spinal cord injury (SCI) presents significant challenges in motor skill recovery and functional independence.
• Body-machine interfaces (BoMIs) offer a dual approach, enabling device control and concurrent rehabilitative training for individuals with severe motor disabilities.

Purpose of the Study:

• To develop and evaluate a portable, low-cost BoMI designed to address both motor recovery and functional independence in SCI survivors.
• To investigate the potential of a customizable BoMI framework to promote symmetrical motor control and improve mobility in SCI individuals.

Main Methods:

• Development of a portable and affordable BoMI system that translates residual upper body mobility into cursor control on a computer.
• Implementation of a reconfigurable mapping system within the BoMI framework to progressively challenge users with impaired movements.
• Assessment of the BoMI's impact on an SCI subject's movement patterns, focusing on symmetry, mobility, and strength.

Main Results:

• The BoMI successfully enabled an SCI subject to perform functional tasks like text entry and gaming.
• The customizable mapping facilitated a shift in the subject's control strategy, moving from predominantly using less impaired movements to engaging both sides of the body.
• Significant improvements in body-side symmetry, increased mobility, and enhanced strength were observed in the degrees of freedom utilized for BoMI control.

Conclusions:

• This study presents the first proof of concept for a BoMI capable of simultaneously controlling assistive devices and achieving specific rehabilitative goals in SCI survivors.
• The developed BoMI demonstrates potential as an effective tool for enhancing both functional independence and motor recovery in individuals with high-level spinal cord injuries.