Ten participants in group A will undergo 30 minutes interactive augmented reality with functional electrical stimulation intervention and 30 minutes traditional physiotherapy per day, 3 days a week for 8 weeks.

Ten participants in group B will undergo 30 minutes treadmill and balance training as well as 30 minutes traditional conventional physiotherapy a day, 3 days a week, for 8 weeks.

Experimental group contains 30 minutes augmented reality combined with functional electrical stimulation training, and 30 minutes traditional physiotherapy. Augmented reality includes treadmill and balance exercise. Functional electrical stimulation applies on tibialis anterior muscle. Traditional physiotherapy includes rolling, sitting, standing, overground walking, facilitation of the paretic limbs, and so on.

The TUG test will ask participants to stand up, walk for 3 meters, turn, walk back and sit down as fast as they can during the test, and the time requires for each patient to complete the test is recorded.

Participants performed a series of 14 functional balance tasks, including maintaining a quiet stance, sitting-to-standing, shifting weight and reaching, turning in place, standing on one leg, and maintaining a tandem stance. Each task was scored on a 5-point ordinal scale (from 0 to 4). A score of 0 denotes the inability of the participant to perform the task, and a score of 4 denotes that the participant can complete the task based on a preset criterion. The highest possible score is 56.

Our study will use 3 Tesla magnetic resonance imaging[GE DISCOVERY MR750w system (GE Healthcare, Milwaukee, Wisconsin)] for functional magnetic resonance imaging. Resting-state functional MRI image is an echo-planar Image (EPI) technique, using a parameter time of repetition of 2500 milliseconds, time of echo is 30 milliseconds, 43 axial slices,slice thickness is 3 mm, flip angle is 80 degrees, field of view is 192 x 192 millimeters, and vixen size is 3 x 3 x 3 millimeters. The EPI scan for 525 seconds. All subjects are asked to close their eyes and supine. our study uses the fractional amplitude of low-frequency fluctuations analysis to confirm abnormal brain function.

Fugl-Meyer Assessment-Lower extremity is used to measure lower-limb recovery in stroke rehabilitation studies.The scale has 6 items ranging from reflex activity to voluntary motor control. Each item further comprises components, with a total of 17. Scoring is done on a 3-point ordinal scale ranges from 0 (no performance) to 2 (faultless performance). The total score range from 0 (no motor function) to 34 (good motor recovery).