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Abstract #2372

Brain activity during the training period of the Hybrid Assistive Limb (HAL) for a subacute stroke: an fMRI case report

Kousaku Saotome1, Akira Matsushita2, Aiki Marushima3, Hiroaki Kawamoto4, Hideo Tsurushima1, Masashi Yamazaki5, Akira Matsumura3, and Yoshiyuki Sankai1

1Center for Cybernics Research, University of Tsukuba, Tsukuba, Japan, 2Department of Neurosurgery, Ibaraki Prefectural University of Health Sciences Hospital, Ami, Japan, 3Department of Neurosurgery, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan, 4Faculty of Engineering, Information and Systems, University of Tsukuba, Tsukuba, Japan, 5Department of Orthopaedic Surgery, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan

The effectiveness of hybrid assistive limb (HAL) training, which is the new rehabilitation robotic approach, for recovery of brain function after stroke remains to be clarified. This is the first report to show the brain activation alteration during the training period for HAL for subacute stroke by using motor task-based functional magnetic resonance imaging (fMRI) 4 times. Our major finding was that fMRI results demonstrated rearrangement of the cortical activation pattern in a form that induces cerebral lateralization in M1 toward the contralateral hemisphere.

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