An active orthosis for gait rehabilitation

Shahid Hussain, Sheng Q. Xie

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Abstract

Gait therapy is vital for restoring neuromuscular control in patients suffering from neurological injuries. Robots can provide prolonged, systematic, and repetitive gait training sessions. Currently available robotic devices use stiff actuators with high end point impedance. This work presents a new compliant robotic gait rehabilitation system. Pneumatic muscle actuators (PMAs) were used for actuation purposes. The robotic device is lightweight and works in perfect alignment with patient's joints. The modeling of robotic device with PMA was performed. Model reference-based adaptive control (MRAC) was used to guide the patient's limbs on physiological gait patterns, and joint torques required to achieve these trajectories were measured. The PMA with the proposed design is capable of providing the required joint torques. Simulation studies are reported.

Original languageEnglish
Title of host publicationMechatronics
EditorsJ. Paolo Davim
PublisherJohn Wiley & Sons
Pages169-194
Number of pages26
ISBN (Print)9781848213081
DOIs
Publication statusPublished - 7 Mar 2013
Externally publishedYes

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Hussain, S., & Xie, S. Q. (2013). An active orthosis for gait rehabilitation. In J. P. Davim (Ed.), Mechatronics (pp. 169-194). John Wiley & Sons. https://doi.org/10.1002/9781118614549.ch6