Locomotor Function Following Transcutaneous Electrical Spinal Cord Stimulation in Individuals With Hemiplegic Stroke

OBJECTIVES: * Exploratory phase: Identify a systematic, methodical approach to identifying the optimal stimulation parameters and gait training protocol for each individual patient with stroke. * Aim 1: Evaluate short-term effects of transcutaneous spinal cord stimulation + gait training on gait symmetry, gait performance, and corticospinal circuitry in individuals with chronic stroke. * Aim 2: Evaluate and predict long-term effects of transcutaneous spinal cord stimulation + gait training on gait symmetry, gait performance, and corticospinal circuitry in individuals with chronic stroke * Aim 3: Identify parameters that distinguish responders from non-responders to transcutaneous spinal cord stimulation in individuals with chronic stroke.