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Responses in human intercostal and truncal muscles to motor cortical and spinal stimulation.

Publication ,  Journal Article
Gandevia, SC; Plassman, BL
Published in: Respir Physiol
September 1988

Percutaneous electrical stimulation of the human motor cortex (up to 750 V) has been used to study the cortical projections to intercostal and truncal muscles. The latencies of electromyographic (EMG) responses were measured to motor cortical stimuli and also to spinal stimulation of the appropriate nerve roots. Following single anodal stimuli at (or near) the vertex, short-latency responses were recorded in pectoralis major (mean 9.6 msec), latissimus dorsi (9.7 msec), paravertebral muscles (11.1 msec), 3rd/4th parasternal intercostals (11.1 msec), and 6th/7th intercostal muscles (12.3 msec). Responses in each muscle group were potentiated by background voluntary respiratory and truncal manoeuvres which activated the muscles. The mean estimated central conduction times from motor cortex to spinal segmental level were 4.8 msec for pectoralis major, 5.8 msec for parasternal intercostals and 6.2 msec for 6th/7th intercostal muscles. The central conduction times and properties of the cortically evoked responses are consistent with a rapidly conducting, oligosynaptic pathway from the human motor cortex to accessory respiratory muscles and to truncal muscles.

Duke Scholars

Published In

Respir Physiol

DOI

ISSN

0034-5687

Publication Date

September 1988

Volume

73

Issue

3

Start / End Page

325 / 337

Location

Netherlands

Related Subject Headings

  • Spinal Nerve Roots
  • Respiratory Muscles
  • Physiology
  • Neural Pathways
  • Neural Conduction
  • Motor Cortex
  • Middle Aged
  • Intercostal Muscles
  • Humans
  • Electromyography
 

Citation

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ICMJE
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Gandevia, S. C., & Plassman, B. L. (1988). Responses in human intercostal and truncal muscles to motor cortical and spinal stimulation. Respir Physiol, 73(3), 325–337. https://doi.org/10.1016/0034-5687(88)90054-0
Gandevia, S. C., and B. L. Plassman. “Responses in human intercostal and truncal muscles to motor cortical and spinal stimulation.Respir Physiol 73, no. 3 (September 1988): 325–37. https://doi.org/10.1016/0034-5687(88)90054-0.
Gandevia SC, Plassman BL. Responses in human intercostal and truncal muscles to motor cortical and spinal stimulation. Respir Physiol. 1988 Sep;73(3):325–37.
Gandevia, S. C., and B. L. Plassman. “Responses in human intercostal and truncal muscles to motor cortical and spinal stimulation.Respir Physiol, vol. 73, no. 3, Sept. 1988, pp. 325–37. Pubmed, doi:10.1016/0034-5687(88)90054-0.
Gandevia SC, Plassman BL. Responses in human intercostal and truncal muscles to motor cortical and spinal stimulation. Respir Physiol. 1988 Sep;73(3):325–337.

Published In

Respir Physiol

DOI

ISSN

0034-5687

Publication Date

September 1988

Volume

73

Issue

3

Start / End Page

325 / 337

Location

Netherlands

Related Subject Headings

  • Spinal Nerve Roots
  • Respiratory Muscles
  • Physiology
  • Neural Pathways
  • Neural Conduction
  • Motor Cortex
  • Middle Aged
  • Intercostal Muscles
  • Humans
  • Electromyography