Comparison of Four-Channel Functional Electrical Stimulation vs. One-Channel Electrical Stimulation on Moderate Arm/Hand Paresis in Subacute Stroke Patients

Who May Qualify: - First-time ischemic stroke with moderate arm paresis (Motricity Index - UE Sum-Score ≥ 40 ≤ 77 points) (Collin \& Wade, 1990) - Early to late subacute phase (7 days - 6 months) (Bernhardt et al., 2017) - Existing ADL ability before the event (ICF d5 self-care, d6 domestic life, extent of problem ≤1 points) (WHO, 2001) - Age ≥18 - 99 years - Signed and dated ICF before the start of any study-specific procedure. Who Should NOT Join This Trial: - Lack of compliance with any inclusion criteria - Implanted defibrillators, brain stimulators, pacemakers, medication pumps - Therapy-resistant epilepsy - Fever or infectious diseases - Inflammatory or tumorous skin diseases in the stimulation area, - Thromboses or vein inflammations - Severe contractures of the affected extremity - Wounds in the stimulation area - Pregnancy - Known allergic reactions to components of the investigational medical device - Unstable psychological status - Participation in other pharmacological clinical investigations within four weeks prior to enrolment - Anything that, in the opinion of the Investigator, would place the subject at increased risk or preclude the subject's full compliance with or completion of the study Always talk to your doctor about whether this trial is right for you.