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Novel Functional Electrical Stimulation for Neurorehabilitation Yukihiro Hara 1 1Nippon Medical School,Chiba Hokusoh Hospital,Department of Rehabilitation Medicine Keyword: functional electrical stimulation (FES) , rehabilitation , brain , plasticity , electromyography pp.113-124
Published Date 2010/2/1
DOI https://doi.org/10.11477/mf.1416100627
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Abstract

 Our understanding of motor learning,neuroplasticity,and functional recovery after the occurrence of brain lesions has increased considerably. New findings in basic neuroscience have provided an impetus for research in motor rehabilitation. Several prospective studies have shown that repeated motor practice and motor activity in a real world environment have a favorable effect on motor recovery in stroke patients. Electrical stimulation can be applied in a variety of ways to the hemiparetic upper extremity following a stroke. In particular,electromyography (EMG)-triggered electrical muscle stimulation improves the motor function of the hemiparetic arm and hand. Triggered electrical stimulation is reported to be more effective than non-triggered electrical stimulation in facilitating upper extremity motor recovery after stroke. Power-assisted functional electrical stimulation (FES) induces greater muscle contraction by electrical stimulation that is in proportion to voluntary integrated EMG signals. Daily power-assisted FES home-program therapy with novel equipment has been shown to effectively improve wrist,finger extension,and shoulder flexion. Combined modulation of voluntary movement,proprioceptive sensory feedback,and electrical stimulation might play an important role in improving impaired sensory-motor integration by power-assisted FES therapy. A multi-channel near-infrared spectroscopy (NIRS) studies in which the hemoglobin levels in the brain were non-invasively and dynamically measured during functional activity found that the cerebral blood flow in the injured sensory-motor cortex area is greater during a power-assisted FES session than during simple active movement or simple electrical stimulation. A novel power-assisted FES sleeve (Cyberhand) has been developed for the rehabilitation of hemiplegic upper extremities.


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電子版ISSN 1344-8129 印刷版ISSN 1881-6096 医学書院

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