EFFECTIVENESS OF RESISTED RETRO-WALKING ON TREADMILL WITH INCLINATION ON PAIN & FUNCTIONAL DISABILITY IN INDIVIDUALS WITH KNEE OSTEOARTHRITIS AT THE END OF 6 WEEKS- A RANDOMIZED CONTROLLED TRIAL. This is new form of closed chain exercise which is combined with progressive resistance training and inclination . It will definitely help the patients with knee osteoarthritis. It will improve patients functional abilities. It will also reduce patients pain. The progressive resistance training and inclination will make this intervention more effective.