Poor balance capacity is one of clinical symptoms of stroke patient. The reason of loss balance capacity is motor impairment, as well as a diminished capacity to voluntarily shift body weight or to with stand external pertubations. Postural movement patterns include three discrete control strategies: hip, knee, and ankle strategy. The ankle rocker is an important factor to maintain balance during standing and the ankle strategy restores the center of mass (CoM) to a position of stability through body movement. As a result, effective control of foot motion and ankle stability may decrease postural sway and the risk of fall in chronic stroke.The purpose of this study is to investigate the effects of the insole on balance capacity in chronic stroke.

An important determinant of activities of daily living performance is standing balance. Therefore, poor balance, or postural stability, is significant predictors the risk of fall. After a fall, the patient can experience psychological, physical, social, economic, and sometimes fatal effects. The injuries can reduce the patient's mobility as well as independence and influence quality of life.Patients with chronic stroke wearing functional insoles and sham insoles to challenge balance tests.

Inclusion Criteria:

• A history of unilateral chronic stroke occurrence over 6 months prior to the study
• Ability to understand verbal instructions.
• Ability to walk 5 meters independently without the need of ankle-foot orthosis.

Exclusion Criteria:

- A diagnosis of other neurological or musculoskeletal disorders that could affect postural balance.