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Updated: Jun 22, 2025

Author Spotlight: Repetitive Transcranial Magnetic Stimulation Combined with Movement Observation in Cerebral Palsy
Published on: August 9, 2024
Efficacy of Repetitive Transcranial Magnetic Stimulation Over the Supplementary Motor Area on Motor Function in
Qi-Qi Lu1, Ping-An Zhu, Zhi-Liang Li
1From the Xiangnan University, Chenzhou, China (J-YX); Department of Rehabilitation Medicine, Yuebei People's Hospital, Shaoguan, China (Q-qL, P-aZ, Z-lL, XB, JY-X); University of Jamestown, Jamestown, North Dakota, (CH); Department of Rehabilitation Medicine, Fujian Longyan First Hospital, Fujian, China (YZ); and Physical Therapy Department, Louisiana State University Health Science Center, New Orleans, Louisiana (HL).
Objective:
The objective of this study was to assess the effect of repetitive transcranial magnetic stimulation on the supplementary motor area in motor function in Parkinson's disease patients.
Method:
Databases searched included five databases from October 7, 2022, to January 4, 2023. The Cochrane Bias Risk Assessment Tool was used for quality assessment. Standardized mean differences were calculated using a random-effects model. Outcome measure is the motor function examination of the motor part of Unified Parkinson's Disease Rating Scale.
Results:
Seven studies totaling 374 patients were included. Meta-analysis showed that stimulation of supplementary motor area significantly improved motor function in Parkinson's disease patients compared with sham stimulation (standardized mean differences = -1.24; 95% CI, -2.24 to -0.24; P = 0.02; I2 = 93%). Stimulation of the same target (supplementary motor area) subgroup analysis showed that high-frequency repetitive transcranial magnetic stimulation is more effective than low-frequency repetitive transcranial magnetic stimulation in improving motor function in Parkinson's disease (standardized mean differences = -1.39; 95% CI, -2.21 to -0.57; P = 0.04; I2 = 77.2%).
Conclusions:
Overall, repetitive transcranial magnetic stimulation over supplementary motor area had a statistically significant improvement in motor function in Parkinson's disease patients, and high-frequency repetitive transcranial magnetic stimulation is statistically significantly more effective than low-frequency repetitive transcranial magnetic stimulation.

