Acknowledging (i) the particular problem of spastic plantar flexor muscles in CP, (ii) the limited scientific evidence for various physical therapy treatment options for children with CP, (iii) the risks and limitations associated with BoNT and focal intramuscular treatment with phenol and alcohol, and (iv) the proven effectiveness of rESWT in the treatment of spasticity in patients with CP aged between 10 and 46 years of age, the aim of the present study is to determine whether rESWT in combination with traditional conservative therapy is safe and effective for the management of spastic plantar flexor muscles in patients with CP younger than averaged three years of age.