“…Between groups comparison showed that traction and therapeutic exercises were more effective than therapeutic exercises alone in reduction of knee pain severity and functional disability and in increasing isometric quadriceps and hamstring muscle strength. This may be attributed to the combined positive effects of both therapeutic exercises (11,12,(35)(36)(37)(38)(39)(40)(41)(42)(43) and mechanical traction (16)(17)(18)(19)(20)(21)(22)(44)(45)(46)(47). Moreover, the application of traction before exercises may have provided an opportunity for greater pain reduction, greater normalization of quadriceps and hamstring activation patterns before exercise performance (25) opening a window for easier performance (26) and a greater force control during exercises (27).…”