Osteoarthritis (OA) is a chronic disease process characterized by degeneration and inflammation in the joint cartilage and subchondral bone, synovial fluid and joint capsule. One of the most affected joints in OA is the knee joint, and the incidence of OA increases with age.

Different treatment approaches are used in the treatment of osteoarthritis. The aim of the study is to examine the effectiveness of Mulligan technique and core exercises applied to female patients with knee osteoarthritis. In addition, the investigators did not find any study examining the effect of Mulligan technique on static balance in the treatment of OA. This is the secondary aim of the study.

Inclusion Criteria:

• Being diagnosed with knee osteoarthritis
• To be in the age range of 40-70
• No lower extremity surgery in the last 6 months.
• Agree to participate in the study

Exclusion Criteria:

• Having had hip-knee replacement surgery
• Surgery planned in the last 6 months
• Having received physical therapy in the last 6 months
• Having uncontrollable hypertension and cardiac problems
• Having been diagnosed with rheumatoid arthritis