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  1. Article ; Online: Work with me, not for me: Relationship between robotic assistance and performance in subacute and chronic stroke patients.

    Kager, Simone / Hussain, Asif / Budhota, Aamani / Dailey, Wayne D / Hughes, Charmayne Ml / Deshmukh, Vishwanath A / Kuah, Christopher Wk / Ng, Chwee Yin / Yam, Lester Hl / Xiang, Liming / Ang, Marcelo H / Chua, Karen Sg / Campolo, Domenico

    Journal of rehabilitation and assistive technologies engineering

    2020  Volume 6, Page(s) 2055668319881583

    Abstract: Introduction: Studies in robotic therapy which applied the performance enhancement approach report improvements in motor performance during training, though these improvements do not always transfer to motor learning.: Objectives: We postulate that ... ...

    Abstract Introduction: Studies in robotic therapy which applied the performance enhancement approach report improvements in motor performance during training, though these improvements do not always transfer to motor learning.
    Objectives: We postulate that there exists an assistance threshold for which performance saturates. Above this threshold, the robot's input outweighs the patient's input and likely learning is not fostered. This study investigated the relationship between assistance and performance changes in stroke patients to find the assistance threshold for performance saturation.
    Methods: Twelve subacute and chronic stroke patients engaged in five sessions (over two weeks, each 60 min) in which they performed a reaching task with the rehabilitation robot H-Man in presence of varying levels of haptic assistance (50 N/m to 290 N/m, randomized order). In two additional sessions, a therapist manually tuned the assistance to promote maximal motor learning.
    Results: Higher levels of assistance resulted in smoother and faster performance that saturated at assistance levels with
    Conclusion: The findings of the study indicate that low levels of assistance (
    Language English
    Publishing date 2020-01-09
    Publishing country England
    Document type Journal Article
    ZDB-ID 2819384-2
    ISSN 2055-6683 ; 2055-6683
    ISSN (online) 2055-6683
    ISSN 2055-6683
    DOI 10.1177/2055668319881583
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: A preliminary study on the relationship between proprioceptive deficits and motor functions in chronic stroke patients.

    Cherpin, Adele / Kager, Simone / Budhota, Aamani / Contu, Sara / Vishwanath, Deshmukh / Kuah, Christopher Wk / Ng, Chwee Yin / Yam, Lester Hl / Xiang, Liming / Hussain, Asif / Karen S G, Chua / Campolo, Domenico

    IEEE ... International Conference on Rehabilitation Robotics : [proceedings

    2019  Volume 2019, Page(s) 465–470

    Abstract: Although motor and sensory impairments of the upper limb after stroke have been widely studied, the relationship between sensory deficits and motor functions has been less thoroughly explored. In this ongoing study, we investigated the relationship ... ...

    Abstract Although motor and sensory impairments of the upper limb after stroke have been widely studied, the relationship between sensory deficits and motor functions has been less thoroughly explored. In this ongoing study, we investigated the relationship between proprioceptive impairments and motor functions with 20 chronic stroke survivors. Their proprioceptive abilities were assessed with a passive joint position matching test using H-Man and their motor functions were assessed with ARAT (Action Research Arm Test) and FMA (Fugl Meyer Upper Extremity Assessment) clinical scores. The assessments were conducted before, during and after the therapy. Results indicated a significant difference between the proprioceptive outcomes of healthy and stroke participants (at baseline) in both matching accuracy (absolute error, p=0.02) and precision (variability of the signed error, p=0.03). Significant correlations were found between the proprioceptive assessment outcomes (assessed before the beginning of the motor rehabilitation) of stroke participants with impaired proprioception and their ARAT clinical scores assessed at the first follow-up (week 12) (rho =- 0.74 and p=0.047 for the absolute error; rho =-0.78 and p= 0.03 for the variability of the signed error). The results from this preliminary study indicated a significant relationship between proprioceptive impairments and motor function performances in proprioceptively impaired chronic stroke participants.
    MeSH term(s) Adult ; Aged ; Chronic Disease ; Female ; Humans ; Male ; Middle Aged ; Motor Activity ; Proprioception ; Stroke/physiopathology ; Upper Extremity/physiopathology
    Language English
    Publishing date 2019-07-31
    Publishing country United States
    Document type Clinical Trial ; Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 1945-7901
    ISSN (online) 1945-7901
    DOI 10.1109/ICORR.2019.8779447
    Database MEDical Literature Analysis and Retrieval System OnLINE

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