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After stroke, individuals often have persistent difficulty using the arm and hand in everyday functional tasks that reduces quality of life. Currently available rehabilitation techniques are not adequate and new protocols are needed that are based on an understanding of how brain regions work together to produce skilled movement. This research project aims to improve our understanding of how the brain controls movement after stroke and determine whether a period of motor practice that targets specific brain regions through the addition of action selection demands leads to improved arm function. We hypothesize that arm motor function and the ability to efficiently activate the action selection motor circuit during movement will improve after training.
Rehabilitation of arm impairment after stroke includes the repetitive practice of functional tasks. In healthy adults, planning plays a vital role in the control of skilled movement, however, the behavioral and neural correlates of planning have largely been unexplored in individuals recovering from stroke. Action selection is an important motor planning process that engages dorsal premotor cortex (PMd) in controls. While PMd activation is a commonly reported neural correlate of motor recovery after stroke, the role of PMd in action selection and motor training are not known. Therefore, the purpose of this study is to determine the effect of training that includes action selection demands on the behavioral and neural correlates of movement after stroke. Thirty-eight individuals in the chronic phase of stroke will be recruited. After completion of clinical measures of impairment and function, all participants with stroke will complete a motor action selection task and functional MRI followed by arm training. Arm training will consist of three weeks (15 sessions) of arm motor training (1.5 hours per session) that includes action selection demands on movement. Follow-up clinical testing will occur at the end of treatment and three weeks later.
Endpoint Classification: Efficacy Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment
Arm Training with Action Selection
University of South Carolina
University of South Carolina
Published on BioPortfolio: 2016-05-31T14:58:18-0400
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Financial support for training including both student stipends and loans and training grants to institutions.
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