This study aims to investigate the effects of foot pronation exercises and arch support insoles on balance and vertical jump test in football players.

The study took place in FootBalance Turkey, which works on foot analysis and insoles.

30 professional football players with pronation who divided into two groups. The football players in the Experimental Group used insoles and also participated the foot core exercise program twice a week for 4 weeks duration. The football players in the Control Group just used the insoles.We used the FootBalance assessmnet system for insoles. Navicular Drop Test, Y Balance Test, Flamingo Testand Vertical Jump Test applied to evalute foot pronation, dynamic balance, static balance and jump performace respectively.

Inclusion Criteria:

1. Voluntary participation in research
2. To be between the ages of 18-45
3. Overpronation foot ( navicular drop test over 10 mm and FootBalance device with visual display)
4. Professional football players at least 5 years

Exclusion Criteria:

1. History of surgery for musculoskeletal structures in both lower extremities
2. History of fracture in both lower extremities
3. Acute injury of the musculoskeletal structures of other joints of the lower extremity affecting joint function and integrity in the last 3 months
4. Have any other knee pathology
5. Balance or vestibular disorder