Central projection of pain arising from delayed onset muscle soreness (DOMS) in human subjects

PLoS One. 2012;7(10):e47230. doi: 10.1371/journal.pone.0047230. Epub 2012 Oct 8.

Abstract

Delayed onset muscle soreness (DOMS) is a subacute pain state arising 24-48 hours after a bout of unaccustomed eccentric muscle contractions. Functional magnetic resonance imaging (fMRI) was used to examine the patterns of cortical activation arising during DOMS-related pain in the quadriceps muscle of healthy volunteers evoked by either voluntary contraction or physical stimulation. The painful movement or physical stimulation of the DOMS-affected thigh disclosed widespread activation in the primary somatosensory and motor (S1, M1) cortices, stretching far beyond the corresponding areas somatotopically related to contraction or physical stimulation of the thigh; activation also included a large area within the cingulate cortex encompassing posteroanterior regions and the cingulate motor area. Pain-related activations were also found in premotor (M2) areas, bilateral in the insular cortex and the thalamic nuclei. In contrast, movement of a DOMS-affected limb led also to activation in the ipsilateral anterior cerebellum, while DOMS-related pain evoked by physical stimulation devoid of limb movement did not.

Publication types

  • Clinical Trial
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Brain / physiology*
  • Female
  • Humans
  • Magnetic Resonance Imaging
  • Male
  • Muscle, Skeletal / physiology
  • Pain / physiopathology*
  • Physical Stimulation
  • Quadriceps Muscle / physiology
  • Thalamic Nuclei / physiology
  • Young Adult

Grants and funding

The work was supported by Deutsche Forschungsgemeinschaft DFG SFB 353. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.