Influence of Transcutaneous Spinal Stimulation Intensity on Spasticity After SCI

Transcutaneous spinal stimulation will be delivered for 30 minutes using biphasic stimulation with a single round electrode as the cathode placed directly over the spine at the T11/T12 (and the lumbar spine for dual-site stimulation) spinous interspace, and two interconnected dispersive (reference) electrodes placed on the abdomen, lateral to the umbilicus. Stimulation intensity will be set to the specified level determined through a pre-stimulation assessment (0.8x reflex threshold). Treatments will be a minimum of 48 hours apart.