By a News Reporter-Staff News Editor at Health & Medicine Week -- Investigators publish new report on Stroke. According to news reporting originating in Perth, Australia, by NewsRx journalists, research stated, "Combining tDCS with robotic therapy is a new and promising form of neurorehabilitation after stroke, however the effectiveness of this approach is likely to be influenced by the relative timing of the brain stimulation and the therapy. To measure the kinematic and neurophysiological effects of delivering tDCS before, during and after a single session of robotic motor practice (wrist extension)."
The news reporters obtained a quote from the research from the University of Western Australia, "We used a within-subjects repeated-measurement design in 12 chronic (>6 months) stroke survivors. Twenty minutes of anodal tDCS was delivered to the affected hemisphere before, during, or after a 20-minute session of robotic practice. Sham tDCS was also applied during motor practice. Robotic motor performance and corticomotor excitability, assessed through transcranial magnetic stimulation (TMS), were evaluated pre- and post-intervention. Movement speed was increased after motor training (sham tDCS) by similar to 20%. Movement smoothness was improved when tDCS was delivered before motor practice (similar to 15%). TDCS delivered during practice did not offer any benefit, whereas it reduced speed when delivered after practice (similar to 10%). MEPs were present in similar to 50% of patients at baseline; in these subjects motor practice increased corticomotor excitability to the trained muscle. In a cohort of stroke survivors, motor performance kinematics improved when tDCS was delivered prior to robotic training, but not when delivered during or after training."
According to the news reporters, the research concluded: "The temporal relationship between non-invasive brain stimulation and neurorehabilitation is important in determining the efficacy and outcome of this combined therapy."
For more information on this research see: Transcranial direct current stimulation (tDCS) and robotic practice in chronic stroke: The dimension of timing. Neurorehabilitation, 2013;33(1):49-56. Neurorehabilitation can be contacted at: Ios Press, Nieuwe Hemweg 6B, 1013 Bg Amsterdam, Netherlands. (Sage Publications - www.sagepub.com/; Neurorehabilitation - nnr.sagepub.com)
Our news correspondents report that additional information may be obtained by contacting V. Giacobbe, University of Western Australia, Center Neuromuscular & Neurol Disorders, Perth, WA 6009, Australia. Additional authors for this research include H.I. Krebs, B.T. Volpe, A. Pascual-Leone, A. Rykman, G. Zeiarati, F. Fregni, L. Dipietro, G.W. Thickbroom and D.J. Edwards (see also Stroke).
Keywords for this news article include: Perth, Stroke, Therapy, Robotics, Machine Learning, Emerging Technologies, Australia and New Zealand
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