OBJECTIVE: To investigate the technical and clinical viability of using computer-facilitated mental practice in the rehabilitation of upper-limb hemiparesis following stroke. DESIGN: A single-case study. SETTING: Academic-affiliated rehabilitation center. PARTICIPANT: A 46-year-old man with stable motor deficit of the upper right limb following subcortical ischemic stroke. INTERVENTION: Three computer-enhanced mental practice sessions per week at the rehabilitation center, in addition to usual physical therapy. A custom-made virtual reality system equipped with arm-tracking sensors was used to guide mental practice. The system was designed to superimpose over the (unseen) paretic arm a virtual reconstruction of the movement registered from the nonparetic arm. The laboratory intervention was followed by a 1-month home-rehabilitation program, making use of a portable display device. MAIN OUTCOME MEASURES: Pretreatment and posttreatment clinical assessment measures were the upper-extremity scale of the Fugl-Meyer Assessment of Sensorimotor Impairment and the Action Research Arm Test. Performance of the affected arm was evaluated using the healthy arm as the control condition. RESULTS: The patient's paretic limb improved after the first phase of intervention, with modest increases after home rehabilitation, as indicated by functional assessment scores and sensors data. CONCLUSION: Results suggest that technology-supported mental training is a feasible and potentially effective approach for improving motor skills after stroke.
OBJECTIVE: To investigate the technical and clinical viability of using computer-facilitated mental practice in the rehabilitation of upper-limb hemiparesis following stroke. DESIGN: A single-case study. SETTING: Academic-affiliated rehabilitation center. PARTICIPANT: A 46-year-old man with stable motor deficit of the upper right limb following subcortical ischemic stroke. INTERVENTION: Three computer-enhanced mental practice sessions per week at the rehabilitation center, in addition to usual physical therapy. A custom-made virtual reality system equipped with arm-tracking sensors was used to guide mental practice. The system was designed to superimpose over the (unseen) paretic arm a virtual reconstruction of the movement registered from the nonparetic arm. The laboratory intervention was followed by a 1-month home-rehabilitation program, making use of a portable display device. MAIN OUTCOME MEASURES: Pretreatment and posttreatment clinical assessment measures were the upper-extremity scale of the Fugl-Meyer Assessment of Sensorimotor Impairment and the Action Research Arm Test. Performance of the affected arm was evaluated using the healthy arm as the control condition. RESULTS: The patient's paretic limb improved after the first phase of intervention, with modest increases after home rehabilitation, as indicated by functional assessment scores and sensors data. CONCLUSION: Results suggest that technology-supported mental training is a feasible and potentially effective approach for improving motor skills after stroke.
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