VIRTUAL PROPRIOCEPTION

Author:

LEMOYNE ROBERT1,COROIAN CRISTIAN2,MASTROIANNI TIMOTHY3,GRUNDFEST WARREN4

Affiliation:

1. Biomedical Engineering IDP, UCLA, 5121 Engineering V, Box 951600, Los Angeles, CA 90095-1600, USA

2. David Geffen School of Medicine, UCLA, Los Angeles, CA, USA

3. Cognition Engineering, Pittsburgh, PA, USA

4. Biomedical Engineering IDP, UCLA, Los Angeles, CA, USA

Abstract

Virtual proprioception represents a novel means of developing cortical reorganization of alternative strategies for hemiparetic gait. Fundamentals of the device are motor control plasticity, aftereffect, and visual-based biofeedback. Two wireless three-dimensional (3D) microelectromechanical systems (MEMS) accelerometers are placed on the femur (upper leg) of both the affected and unaffected limbs above the lateral epicondyle next to the knee joint. The acceleration data from the two wireless 3D MEMS accelerometers are fed back to the user in real time by visual output from a portable laptop PC. Given the virtual proprioception feedback, the user can then adjust the original gait while walking to an improved alternative gait strategy. First, hemiparetic gait is comprehensively discussed. The inherent roles of proprioception with locomotion and issues with traumatic brain injury are considered. Then, the technology advance of accelerometers and gait analysis is detailed. Virtual proprioception is tested and evaluated, while demonstrating the capacity to improve disparities in hemiparetic gait during real time.

Publisher

World Scientific Pub Co Pte Lt

Subject

Biomedical Engineering

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