The purpose of this study is to determine if a virtual reality training of foot placement with or without visual cues about the location of the foot in the environment would improve locomotion-related function in persons in the chronic stage of stroke. Participants were randomly assigned to receive twice per week, for a total of 2 weeks' training with visual cues (control group) or without (experimental group). It was hypothesized that the experimental group would be able to place the foot closer to the target when stepping and have more symmetrical gait. So far, 22 stroke patients completed the experiment. Preliminary results support the hypothesis. This project is still ongoing.

Inclusion Criteria:

• first time unilateral stroke and onset over 6 months
• able to independent walking with or without aids over 10 meters
• Mini-Mental State Examination (MMSE) score above 24
• orientation intake, able to identify right and left
• normal or corrected-to-normal vision, able to see the 2 cm diameter circle on the floor while standing

Exclusion Criteria:

• gait nearly normal
• had other neurological and musculoskeletal disease which can affect walking ability
• hemineglect
• use virtual reality device will severely discomfort, such as headaches, blurred vision, vertigo or vomiting