 This comparative efficacy study will be the first to examine and compare the motor learning processes and immediate and long-term effects between condensed and distributed RT post BoNT injection. The results may provide clinicians with the appropriate methods to scheduling RT following BoNT-A injection to improve upper limb functions for patients with hemiplegic spasticity stroke. From the socioeconomic perspectives, identify the optimal frequency of Robotic therapy post BoNT-A injection may reduce medical resource utilization, expenditures, and care-giver burden. 