Phase 2: BoNTA performed in the same way of Phase 1 associated to SPRInt protocol Times: T2: before combination of BoNTA and rehabilitation treatment (18 sessions of 45 minutes three times a week); T3: 6 weeks after T2 considered BoNTA pharmacological peak effect and the end of SPRInt protocol; T4: 12 weeks after T2 considered from guidelines and pharmaceutical data sheet the lowest BoNTA effect and follow up of SPRInt-consolidation.