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Portable and Reconfigurable Wrist Robot Improves Hand Function for Post-Stroke Subjects.

Kang Xiang Khor, Patrick Jun Hua Chin, Che Fai Yeong

    IEEE Transactions on Neural Systems and Rehabilitation Engineering : a Publication of the IEEE Engineering in Medicine and Biology Society
    |April 15, 2017
    PubMed
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    This study introduces a cost-effective, modular rehabilitation robot for stroke patients. The portable reconfigurable robot significantly improved wrist and forearm function in post-stroke individuals.

    Area of Science:

    • Rehabilitation Engineering
    • Robotics in Medicine
    • Neurorehabilitation

    Background:

    • Stroke rehabilitation often relies on expensive robotic systems, limiting accessibility.
    • Modular and reconfigurable robots offer a potential solution to reduce costs and increase portability.
    • There is a need for more research on the effectiveness of such adaptable robotic systems.

    Purpose of the Study:

    • To design and implement a portable, modular, and reconfigurable robot for stroke rehabilitation.
    • To evaluate the effectiveness of this novel robot for wrist and forearm training in post-stroke patients.
    • To address the scarcity of literature on the efficacy of reconfigurable rehabilitation robots.

    Main Methods:

    • A single, modular, and reconfigurable robot was developed with interchangeable end effectors for diverse training movements.

    Related Experiment Videos

  • Seven post-stroke subjects underwent 30 training sessions (30 minutes each) using the robot for wrist and forearm exercises.
  • Statistical analysis was performed on Fugl-Meyer assessment scores and active range of motion measurements.

    • Main Results:

    • Significant improvement was observed in the Fugl-Meyer assessment scale for forearm and wrist components (3.29 points, 16.20% increase, p = 0.027).
    • Active range of motion showed significant gains in pronation-supination (75.59% increase, p = 0.018) and wrist flexion-extension (56.12% increase, p = 0.018).

    Conclusions:

    • The developed reconfigurable robot is a promising, cost-effective tool for enhancing wrist and forearm function in stroke survivors.
    • Preliminary findings suggest that this adaptable robotic system can lead to significant functional improvements in patients.
    • Further research is warranted to explore the broader applications and long-term benefits of reconfigurable rehabilitation robots.