Exoskeleton-assisted rehabilitation delivers consistent and high levels of training intensity as an innovative therapeutic option for the restoration of functional gait in stroke survivors. Evidence on neurophysiological response induced by this training in end-users is limited. Understanding cortical and muscular activity can be used for user adaptation during training. This work aims to describe the data processing pipeline for Event-Related Spectral Perturbation (ERSP) and Cortico-Muscular Coherence (CMC). Variations in the ERSP suggest that modulation of neural activity does not occur during the Exo session.