IRCT20200617047818N1 IRCT 2021-02-05 Kharazmi University Comparison of The Effect of Wobble board training with and without Cognitive intervention on the active men with chronic ankle instability Comparison of The Effect of a period Wobble Board training with and without Cognitive intervention on balance, ankle proprioception, and some jump landing kinetic parameters of the active men with chronic ankle instability 2020-12-10 anticipated 21 Complete https://irct.ir/trial/52450 interventional Randomization: Randomized, Blinding: Single blinded, Placebo: Not used, Assignment: Parallel, Purpose: Treatment, Randomization description: Participants will be randomized into one of three groups (Two intervention and one control) using an online randomization system (randomizer.org). A member of the research team who is not involved in the selection of samples will determine the randomization sequence using a computer program. Participants will be notified of their group allocation with a sealed envelope, Blinding description: In this study, the outcome assessor is blind to the groups’ randomization and interventions receiving by participants. in this way, during the evaluation before and after the intervention protocol, they do not make mistakes in their judgments in favor of a specific therapeutic intervention. N/A Condition 1: Chronic ankle instability. Condition 2: Athlete. Intervention 1: Intervention group: For 5 weeks, three sessions per week, 5 sets, each set 40 seconds, every 10 seconds to rotate alternately, one minute rest between each set, standing in three positions: standing, standing on non-engaged leg, and standing on foot Involved, wobble board exercises. Intervention 2: Intervention group: For 5 weeks, three sessions per week, 5 sets, each set 40 seconds, every 10 seconds to rotate alternately, one minute rest between each set, standing in three positions: standing, standing on non-involved foot, and standing on foot Involved, wobble board exercises with seven countdowns from a random number between 200 and 300. Intervention 3: Control group: This group carries out its daily value activities. Undecided - It is not yet known if there will be a plan to make this available Justification or reason for indecision in sharing IPD is There is no more information.