Using intramuscular coherence to assess cortical contribution tolocomotor adaptation

We examined the functional role of intramuscular coherence in relation to changes in spatiotemporal gait parameters during split-belt walking adaptation. We found that corticospinal drive measured by intramuscular coherence in the tibialis anterior muscle changed with adaptation, and that increased coherence is related to greater temporal (but not spatial) gait symmetry. This suggests that the corticospinal drive may play a specific functional role in adaptation of gait symmetry.