Photo Biostimulation and Spasticity in Cerebral Palsy

Inclusion Criteria: * age between 8 and 14 years, * who had a diagnosis of spastic cerebral palsy by a pediatrician, with at least one spastic - muscle in the extremities, * grades 1 -4 on Gross Motor Function Classification System * score 1 on the Modified Ashworth Scale (MAS) * the ability to walk alone or with assistance * whose parents/guardians sign the informed consent form, * who were willing to complete the study. Exclusion Criteria: * patients with anatomical disorders, * patients who received a botulinum toxin injection in the calf muscle during the last six months * surgery in the lower extremity during the previous year * severe associated neurological diseases such as epilepsy * poor nutritional status,