Cerebral palsy impacts each child differently. This is why there are multiple types of CP. One of these classifications is based on muscle tone. Hypertonic CP, the opposite of hypotonic CP, is more common. And because these kids are on the higher end of the muscle tone spectrum, stiff limbs and muscle spasms are common.Although Surestep is best known for helping kids with low tone, our Indy 2 Stage is a great solution for high tone.