Table 1 Inclusion and Exclusion criteria for participation in the study. Asterisk indicates the eligibility criteria met only by children with CP

● Age 8–18 years

● The diagnosis of spastic diplegic CP*

● Levels I-III GMFCS classification*

● Ability to stand independently (i.e., without using any assistive device)

● Visual, perceptual, and cognitive/ communication skills to follow multiple step commands

● Seizure-free or well controlled seizures

● Ability to communicate pain or discomfort during testing procedures

● Willingness to participate in testing

● Ability to obtain Parental/guardian consent and child assent/consent

● Diagnosis of athetoid, ataxic or quadriplegic CP*

● Significant scoliosis with primary curve > 40°

● Lower extremity surgery or fractures in the year prior testing

● Joint instability or dislocation in the lower extremities

● A history of selective dorsal root rhizotomy*

● Botulinum toxin injections in the lower extremities within the past 6 months*

● Marked visual, hearing, vestibular deficits

● Implanted medical device that may be contraindicated with application of SR stimulation

● Severe spasticity of any lower extremity muscle (e.g., a score of 4 on the Modified Ashworth Scale)*

● Pregnancy