This study investigates whether adding sensory-level electrical stimulation to an ongoing neurodevelopmental treatment program is associated with changes in ankle mobility, spasticity-related measures, muscle mechanical properties, and functional performance in children with spastic cerebral palsy. Children complete a 12-week rehabilitation program and are assessed at baseline, after 6 weeks of neurodevelopmental treatment alone, and after an additional 6 weeks during which sensory-level electrical stimulation is added to the ongoing treatment. The study aims to determine the feasibility of this combined approach and to explore whether favorable changes occur over time in range of motion and functional outcomes.