Effects of Transcranial Direct Current Stimulation Combined With Virtual Reality on Gait and Self-Esteem in Children With Spastic Cerebral Palsy

Cerebral palsy can affect walking ability, muscle control, functional mobility, and psychosocial well-being in children. Transcranial direct current stimulation (tDCS) is a non-invasive brain stimulation technique that may support motor learning, while virtual reality (VR) rehabilitation provides interactive, repetitive, and task-specific motor training. This randomized controlled trial will investigate whether active tDCS combined with VR rehabilitation provides additional benefits compared with sham tDCS combined with the same VR rehabilitation and conventional physical therapy in children with spastic cerebral palsy. A total of 42 children aged 8 to 16 years with spastic diplegic cerebral palsy and Gross Motor Function Classification System (GMFCS) levels I-III will be randomly assigned in a 1:1:1 ratio to one of three groups: active tDCS plus VR, sham tDCS plus VR, or conventional physical therapy. Each group will receive 18 treatment sessions over six weeks, with three sessions per week. Outcomes will be assessed before treatment, after nine sessions, and after 18 sessions. The primary outcomes will be gait performance measured using the 10-Meter Walk Test and self-esteem measured using the Rosenberg Self-Esteem Scale. Secondary outcomes will evaluate spasticity, gross motor function, functional mobility, and functional independence.

Inclusion Criteria: * Diagnosed with spastic cerebral palsy (spastic diplegia). Age 8-16 years. Gross Motor Function Classification System (GMFCS) levels I-III. Presence of mild to moderate lower-limb spasticity, defined as a Modified Tardieu Scale (MTS) score between 1 and 3 in at least one major lower-limb muscle group, such as the gastrocnemius, hamstrings, or hip adductors. Able to understand and follow verbal instructions. Parent or guardian provides informed consent and the child provides assent. Exclusion Criteria: * History of seizures or epilepsy. Implanted metal or electronic devices, such as a pacemaker. Severe cognitive impairment that prevents comprehension of study tasks. Skin allergies, lesions, or other conditions affecting the electrode application sites. Current use of antispasticity medication that could directly influence spasticity outcomes. Botulinum toxin injection within the previous 3 months. Recent orthopedic surgery or change in medication regimen within the previous 5 days. Concurrent participation in alternative or adjunct therapies outside the study protocol. Refusal to participate or withdrawal of consent/assent.