Cerebrovascular Accident (CVA)

The goal of this interventional study is to understand the contribution of the central components to the manifestation of neuromuscular fatigue in stroke survivors. The study will include adults with a first-ever stroke in the subacute phase. The main question it aims to answer: • How does the brain activity contribute to the manifestation of neuromuscular fatigue in stroke survivors? Researchers will compare stroke participants receiving active vs sham tACS in a single session before the fatiguing contractions to determine whether central changes can influence fatigue onset/progression. Participants will: * Perform repeated leg muscle contractions until fatigue while seated in an experimental setup * Receive either active or sham tACS for 20 minutes before the fatiguing contractions. * Wear non-invasive sensors to record brain activity (EEG) and muscle activity (EMG) during the task * Complete the study during a single experimental session in which fatigue-related changes will be measured throughout the task

Evaluate the effectiveness of the Q Therapeutic (BQ 3.0) System for individuals with chronic stroke in improving upper extremity function as determined by change in functional outcome measures after 3-month treatment, including in-clinic and at-home sessions.

The goal of this clinical trial is to learn if there benefits combine enhanced external counterpulsation (EECP) with the standard post-acute care (PAC) rehabilitation treatment to treat stroke patients.. The main questions it aims to answer are: What is the feasibility of combining EECP and PAC? Does EECP combined PAC rehabilitation improve functional outcomes of post-stroke patients? Researchers will compare standard PAC rehabilitation and EECP combined PAC rehabilitation to see if EECP has benefits to treat stroke.