Electroacupuncture modulates cortical excitability in a manner dependent on the parameters used.

Introduction: There is evidence that electroacupuncture (EA) acts through the modulation of brain activity, but little is known about its influence on corticospinal excitability of the primary motor cortex (M1).

Objective: To investigate the influence of EA parameters on the excitability of M1 in healthy individuals.

Methods: A parallel, double blind, randomized controlled trial in healthy subjects, evaluating the influence of an EA intervention on M1 excitability.