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Effects of Hand Individual Finger Exercise after 1 Hz Low-Frequency rTMS on Cerebral Motor Evoked Potential and Latency in Patients with Stroke

Journal of Magnetics, Volume 28, Number 4, 31 Dec 2023, Pages 462-469
Sung-Ryong Ma (Chosun University), Jong-Bae Choi (Chosun University)
Abstract
This study aimed to investigate the effects of individual finger exercise under the residual effect after low-frequency
repetitive transcranial magnetic stimulation (LF-rTMS) on cerebral motor-evoked potential amplitude
(MEP amplitude) and cerebral MEP latency (MEP latency) in patients with stroke. This study conducted an
intervention program in two groups of patients with chronic stroke (experimental group, individual finger exercise
including residual effect after LF-rTMS group; IFE-rTMS group, individual finger exercise; IFE group,
each comprising 10 patients). The program, which was conducted five times a week for 1 week, evaluated the
MEP amplitude and MEP latency before and after the experiment. In an inter-group test of MEP amplitude
and latency, all groups demonstrated an increase between the pre- and post-test evaluations. In an inter-group
examination of MEP amplitude and latency, a significant difference was observed between the IFE-rTMS and
IFE groups.
Keywords: low frequency repetitive transcranial magnetic stimulation (LF-rTMS); motor-evoked potential amplitude (MEP amplitude); motor-evoked potential latency (MEP latency); stroke; finger exercise
DOI: https://doi.org/10.4283/JMAG.2023.28.4.462
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