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Effect of Cerebral Motor Cortical Excitability and Hand Dexterity on Dominant Hemisphere Difference after 1 Hz Low Frequency rTMS Combined with Hand Manual Therapy in Chronic stroke

Journal of Magnetics, Volume 25, Number 4, 31 Dec 2020, Pages 681-686
Byung-Il Yang (Department of Physical Therapy, Sanggi University), Man-Seok Han * (Department of Radiological Science, Kangwon National University), Bo-Kyoung Song * (Department of Occupational Therapy, Kangwon National University)
Abstract
The paper was to find out effects of cerebral motor excitability and hand dexterity used to 1 Hz low frequency
repetitive transcranial magnetic stimulation (rTMS) combined with hand manual therapy (HMT) on dominant
hand difference in chronic stroke patients. 16 stroke patients were classified into the dominant hand HMT
with r TMS group (DHMT+rTMSG) and non-dominant hand HMT with rTMS group (NDHMT+rTMSG),
and 1 Hz low-frequency rTMS with HMT was performed. Motor evoked potentials (MEPs) amplitude, latency
and box and block test (BBT) were used to confirm cerebral motor activity and hand dexterity. In
DHMT+rTMSG, MEPs amplitude, latency and BBT showed significant differences. In NDHMT+rTMSG,
MEPs amplitude, latency only showing significant difference. In the comparison between groups, MEPs amplitude,
latency showed significant difference. Therefore, the 1 Hz low frequency rTMS combined with HMT
according to the dominant hand difference is considered to be an n approach applied in the recovery of hand
function in stroke.
Keywords: 1 Hz low frequency repeated transcranial magnetic stimulation; motor evoked potentials; cortical motoractivity; dominant hemisphere
DOI: https://doi.org/10.4283/JMAG.2020.25.4.681
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