Inclusion Criteria:  Willingness to participate. Age group between 4 and 18 years. They are able to walk with limitation or holding on according to Gross Motor Function classification System (GMFCS) (level II, III, IV). All patients have mild to moderate spasticity according to modified Ashworth scale (Grade 1, 1+,2).  Exclusion Criteria:  All Children with:  Perceptual defects (IQ<70). Use of botulinum toxin in the past 4 months. Convulsions. Other peripheral or central nervous system dysfunction. Fixed deformities in lower limbs. Clinically suspected active inflammatory or pathologic changes in lower limb joints during the previous 6 months. Clinically suspected active medical problems, such as pneumonia, meningitis, encephalitis, upper gastrointestinal bleeding, or urinary tract infection. Metabolic disorders, such as inborn error of metabolism, electrolyte, and endocrine disorders. Metallic implants.