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Author Spotlight: Enhancing Post-Stroke Upper Limb Rehabilitation with Robotic Technologies for Improved Motor Recovery and Functional Outcomes
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Variable Power Assistance Robotic Manipulation System for Upper Arm Rehabilitation.

S M Mizanoor Rahman

    IEEE ... International Conference on Rehabilitation Robotics : [Proceedings]
    |July 11, 2025
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    This study introduces a 1-degree-of-freedom power assist robotic system for stroke patient upper arm rehabilitation. The system allows adjustable perceived object heaviness, aiding recovery and improving quality of life.

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    Last Updated: Sep 16, 2025

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    Area of Science:

    • Rehabilitation Engineering
    • Robotics
    • Human-Robot Interaction

    Background:

    • Stroke survivors often face upper limb motor deficits requiring specialized rehabilitation.
    • Current rehabilitation methods may lack adaptability to individual patient progress.
    • Robotic systems offer potential for consistent and adjustable therapeutic interventions.

    Purpose of the Study:

    • To develop and evaluate a 1-degree-of-freedom (DOF) power assist robotic system for upper arm rehabilitation in stroke patients.
    • To enable adjustable perceived object heaviness for tailored rehabilitation.
    • To assess the system's performance and human-robot interaction (HRI).

    Main Methods:

    • Development of a 1DOF power assist robotic system capable of lifting and lowering objects.
    • Modeling to quantify power assistance levels and psychophysical methods to compute assistance for varying perceived object heaviness.
    • Experimental evaluation using healthy subjects with a novel assessment scheme.

    Main Results:

    • Subjects could discern variations in power assistance corresponding to changes in perceived object heaviness.
    • The system demonstrated satisfactory human-robot interaction (HRI).
    • The power assistance levels were successfully modulated to alter the haptic perception of object weight.

    Conclusions:

    • The developed power assist robotic system is suitable for upper arm rehabilitation in stroke patients.
    • Adjustable perceived heaviness allows for personalized rehabilitation progression.
    • The system has the potential to enhance patient recovery and improve quality of life (QoL).