Study of the ERD Induced by Different Motor Tasks Through Non-invasive EEG Analysis to Improve Stroke Rehabilitation Outcomes

Several studies have shown that active, passive and imagery motor activities in healthy participants produce similar changes in the cortical activity over sensorimotor areas (sm). In this study, 26 stroke patients were recruited. They performed three different motor activities, according to the literature, with the paretic hand: active hand movement, passive hand movement with an exoskeleton and motor imagery. The results shown an erd phenomenon over contralesional sm in two of the three tasks, being negligible in the motor imagery. These results suggest that rehabilitation based on passive hand mobilization could improve the recovery outcomes in patient with no active hand movements.