Quadriceps muscle strength Pain intensity Knee function
Patellofemoral pain syndrome is one of the most common young adult female complaints, caused by changes in the patellofemoral joint's physical and biomechanical properties. This study compared the Short-term effects of patellar taping and electromyographic-biofeedback (EMG-BF) guided maximum voluntary isometric contraction of quadriceps muscle strengthening at 900 or 600 knee angles on quadriceps strength and functional performance in a female patient with patello-femoral pain syndrome (PFPS)