Reduced corticomotor excitability with cyclic passive movement: a study using transcranial magnetic stimulation. Academic Article uri icon

Overview

abstract

  • Human voluntary movement involves the integration of kinaesthetic information with efferent motor activity during the planning and execution stages of movement. While much is known of the inhibitory and excitatory effects resulting from activation of specific kinaesthetic sensory receptors, in the present study we employed cyclic passive movement of the index finger in order to activate a range of kinaesthetic receptors in a manner that was intended to correspond to how these receptors might be active during a comparable voluntary movement. We intended to identify how this passive movement protocol might affect the excitability of the corticomotor pathway. During 1 Hz cyclic passive movement of the index finger there was an approximately 60% reduction in the amplitude of the motor evoked response from the first dorsal interosseous muscle. The results of the present study demonstrate that passive movement can have a profound effect on the excitability of the corticomotor pathway.

publication date

  • December 1, 2002

Research

keywords

  • Cerebral Cortex
  • Fingers
  • Kinesthesis
  • Motor Activity
  • Motor Cortex
  • Muscle, Skeletal
  • Range of Motion, Articular
  • Synaptic Transmission

Identity

Scopus Document Identifier

  • 0037799157

Digital Object Identifier (DOI)

  • 10.1016/s0167-9457(02)00169-0

PubMed ID

  • 12620710

Additional Document Info

volume

  • 21

issue

  • 5-6