Inclusion Criteria:  Patients aged 6-12 years or younger who have not received botulinum toxin or surgery within 3 months before the study Patients diagnosed with Bilateral Spastic Cerebral Palsy Patients diagnosed with Spastic Hemiplegic Cerebral Palsy  Exclusion Criteria:  Children who cannot understand and follow orders Children with stiffness in the lower limbs corresponding to the Modified Ashworth Scale (MAS)> 3 Patients who wear a robot and walk without affecting contractures, deformities, or skin problems Infants with cardiovascular instability and mild scoliosis with a cobb's angle of 30 degrees or more