Inclusion Criteria:  Being diagnosed with spastic diplegic cerebral palsy Being between the ages of 5-17 Agree to participate in the study  Exclusion Criteria:  Excessive spasticity and Achilles contracture that prevents heel contact during stance Botulinum toxin injection into the calf muscles in the last 3 months Prior orthopedic surgery of the Achilles tendon, foot, or ankle Radiculopathy, plexus, or peripheral nerve disorder involving the lower extremities