Spinal zaps help stroke survivors walk better?

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

Healthy Control Group Inclusion Criteria: * Age 18 or older * Able and willing to give written consent and comply with study procedures Healthy Control Group Exclusion Criteria: * No history of cerebrovascular accidents or neurological degenerative pathologies (such as multiple sclerosis, Alzheimer's disease, Parkinson's disease, etc.) * Pregnant or nursing * Skin allergies or irritation; open wounds * Utilizing a powered, implanted cardiac device for monitoring or supporting heart function (i.e. pacemaker, defibrillator, or LVAD) Stroke Group Inclusion Criteria: * Participants are 18 years of age or older * Participants are at least 4 weeks post stroke * Participants with hemiplegia secondary to a single stroke * Functional Ambulation Category of 2 or greater - Patient needs continuous or intermittent support of one person to help with balance and coordination. * Participants are able to provide informed consent * Participants are not currently receiving regular physical therapy services Stroke Group Exclusion Criteria: * Individuals less than18 years of age * Individuals less than 4 weeks post stroke * Individuals with ataxia * Individuals with multiple stroke history * Currently taking a Selective Serotonin Reuptake Inhibitor (SSRI) or Tricyclic antidepressant (TCA) * Botox injection in lower extremity within the last 4 months * Modified Ashworth score of 3 or greater in lower extremity * Pregnancy or nursing * Pacemaker or anti-spasticity implantable pumps * Active pressure sores * Unhealed bone fractures * Peripheral neuropathies * Painful musculoskeletal dysfunction due to active injuries or infections * Severe contractures in the lower extremities * Medical illness limiting the ability to walk * Active urinary tract infection * Clinically significant depression, psychiatric disorders, or ongoing drug abuse * Metal implants in their spine TMS Specific Criteria (see Safety Screening Questionnaire for Transcranial Magnetic Stimulation) * Medicated with agents known to increase (e.g., amphetamines) or decrease motor system excitability (e.g., lorazepam) * Implanted cardiac pacemaker * Metal implants in the head or face * Suffers unexplained, recurring headaches * Had a seizure in the past unrelated to the stroke event, or has epilepsy * Skull abnormalities or fractures * Suffered a concussion within the last 6 month * Cardiorespiratory or metabolic diseases (e.g. cardiac arrhythmia, uncontrolled hypertension or diabetes, chronic emphysema) * Pregnant