Knee Osteoarthritis is a chronic degenerative joint disease with complex etiology that results in loss of normal joint function due to damage to the articular cartilage. It is characterized by pain, swelling, inflammation and narrowing in articular cartilage. Hip muscle weakness has been observed in persons with knee OA and poor core stability may be one of the other contributing factors that lead to knee OA development as well as its progression. Core stabilization and muscular synergism of the trunk and hip work is an effective way to improve lower limb strength balance and prevent injury. So the lumbopelvic stability is vital to support loads on the knee joint.