Robotic arm brace could restore movement in chronic stroke patients

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * 18-89 years of age * Unilateral arm weakness due to stroke (6 months or more since onset) * Adequate range of motion at the elbow, forearm, wrist, and hand to don the device * Active shoulder flexion of at least 30 degrees and active shoulder abduction of at least 20 degrees * Ability to generate volitional, consistent, and detectable EMG signals from the upper arm and forearm sensor sites with wrist in neutral or flexed positions as detected by the MyoPro software * MAS score less or equal to 3 for the biceps, triceps, supinators and pronators of the impaired arm * Able to read and comprehend the English language * Able to follow directions * Able to provide informed consent * Medically and psychologically stable. * Ability to don/doff MyoPro independently or have support as needed. * Ability to undergo MRI * Ability to undergo TMS procedures Exclusion Criteria: * Previous stroke(s) affecting motor function on the opposite side. * Persistent and severe shoulder subluxation, pain or dislocation * Shoulder passive range of motion \< 45 degrees in flexion and abduction * Fixed upper limb contractures on the impaired arm and hand * Unable to safely support the weight of their arm plus 4 lbs (1.82 kg; the weight of the device) without pain even with arm supported. * Skin rash or open non-healing wound on impaired arm * Involuntary movements of the impaired arm * Pacemaker or other implanted devices that are not compatible with testing procedures or would interfere with donning/doffing and functioning of device. * Metal in the skull or deformity of the skull * Claustrophobia, or inability to operate the MRI patient call button * Contraindications for MRI (standardized screening form for MRI). * Past history of seizures * Family history of medication refractory epilepsy * Pregnancy or pregnancy planning during the study period * Currently taking medications or substances that lower the threshold for onset of seizure.