Spinal zaps may help stiff legs move freely in rare nerve disease

This study tests a noninvasive spinal cord stimulation (tSCS) to improve walking and reduce muscle stiffness in 15 adults with hereditary spastic paraplegia (HSP), a rare nerve condition. Participants receive stimulation through skin electrodes on the lower back twice a week for 8 weeks, then are followed for 8 more weeks. Researchers measure walking speed, endurance, and stiffness to see if the treatment helps.