PBBT and WBV Effect on Balance and Gait in Stroke

The goal of this clinical trial is to compare the effects of perturbation based balance exercises with whole body vibration training in sub-acute stroke patients and to evaluate their effects on balance, and gait. The main aim to : * To evaluate their effects on balance, and gait. * Comparison of these rehabilitation protocols and identify the more efficacious treatment. Participants will perform perturbation based balance training and whole body vibration therapy to improve balance and gait. If there is a comparison group: Researchers will compare both groups to see both interventions effects.