%0 Journal Article
%T Central Projection of Pain Arising from Delayed Onset Muscle Soreness (DOMS) in Human Subjects
%A Katharina Zimmermann
%A Caroline Leidl
%A Miriam Kaschka
%A Richard W. Carr
%A Pavel Terekhin
%A Hermann O. Handwerker
%A Clemens Forster
%J PLOS ONE
%D 2012
%I Public Library of Science (PLoS)
%R 10.1371/journal.pone.0047230
%X Delayed onset muscle soreness (DOMS) is a subacute pain state arising 24¨C48 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.
%U http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0047230