Inclusion Criteria:  Diagnosis of acute stroke. Score of <17 on admission ARAT. Participation ≥ 3 BAT training sessions.  Exclusion Criteria:  Impaired cognition impacting ability to participate in virtual reality system Pain resulting in poor tolerance of range of motion. Impaired sitting balance or poor tolerance of sitting in upright posture in chair without armrests. Spasticity in the affected upper extremity Modified Ashworth Scale (MAS) of 3 or greater.