There will be a difference in ankle functional ability between athletes with chronic ankle instability in the intervention group and in the control group.

Inclusion Criteria:

• recurrent ankle sprain in one year
• sustain at least one repeated injury or have the experience of ankle instability feelings or "giving way"
• not undergoing formal or informal rehabilitation for the unstable ankle in the last three months
• have residual symptoms after recurrent sprain of the ankle

Exclusion Criteria:

• have the history of fracture or surgical procedures in the lower extremity
• have the history of neurological disorders affecting the lower extremities vestibular dysfunction or balance disorder
• allergic to the zinc oxide compound in the adhesive tape