This trial compares two exercise programs, HIIT and MICT, for stroke survivors. HIIT involves short bursts of intense exercise, while MICT is continuous moderate exercise. The goal is to see which program better improves brain function and heart health. The study will also check if participants find HIIT enjoyable and motivating. High-intensity interval training (HIIT) has been shown to induce significant improvements in numerous physiological and health-related indices, often to a similar or superior extent compared to moderate-intensity continuous training (MICT).