Inhibition of the unaffected motor cortex by 1 HZ repetitive transcranial magnetic stimulation enhances motor performance and training effect of the paretic hand in patients with chronic stroke

Naoyuki Takeuchi, Takeo Tada, Masahiko Toshima, Takayo Chuma, Yuichiro Matsuo, Katsunori Ikoma

Research output: Contribution to journalArticlepeer-review

153 Citations (Scopus)

Abstract

Objective: Recent reports demonstrated that low-frequency repetitive transcranial magnetic stimulation (rTMS) over the unaffected hemisphere improved the affected hand function in chronic stroke patients. We investigated whether 1 Hz rTMS improved the motor learning of the affected hand in patients after stroke. Design: A double-blind study. Patients: Twenty patients with chronic subcortical stroke. Methods: The patients were randomly assigned to receive either a sub-threshold rTMS over the unaffected hemisphere (1 Hz, 25 minutes) or sham stimulation, and all patients performed a pinching task after stimulation. We evaluated the motor function of the affected hand and the excitatory and inhibitory function of the affected motor cortex by transcranial magnetic stimulation. Results: Compared with sham stimulation, rTMS induced an increase in the excitability of the affected motor cortex (p<0.001) and an improvement in acceleration of the affected hand (p=0.006). Moreover, the effect of motor training on pinch force was enhanced by rTMS (p<0.001). These improvement in the motor function lasted for one week after rTMS and motor training (p<0.001). Conclusion: rTMS improved the motor learning of the affected hand in patients after stroke; thus, it can apply as a new rehabilitation strategy for patients after stroke.

Original languageEnglish
Pages (from-to)298-303
Number of pages6
JournalJournal of Rehabilitation Medicine
Volume40
Issue number4
DOIs
Publication statusPublished - 2008 Apr

Keywords

  • Motor learning
  • Neuronal plasticity
  • Rehabilitation
  • Repetitive transcranial magnetic stimulation
  • Stroke

ASJC Scopus subject areas

  • Physical Therapy, Sports Therapy and Rehabilitation
  • Rehabilitation

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