Analysis of Electroencephalogram Before and After Exercise Therapy Intervention

Abstract

Stroke occurs when blood flow to the brain is critically reduced. After the stroke occurred, patients may suffer from paralysis. The key mechanism of recovery after the stroke is involved in neuroplasticity. To induce neuroplasticity, exercise therapy has been conducted. However, it remains unclear how the exercise therapy affects the brain activities. To investigate this, in this study, electroencephalography (EEG) signals during a motor task were recorded and analyzed before and after exercise therapy. In the analysis, event-related desynchronization (ERD) was calculated from EEG signals during the motor task and the strength of ERD was compared between before and after the therapy. As a result, the strength of ERD after the therapy was stronger than that before the therapy. The results suggest that the therapy conducted in this study may be the rehabilitation that facilitates the brain activity related to movement.