The knee joint is capable to bear weight and to produce a wide range of motion - therefore it plays an important role in activities and weight support. Patellofemoral pain syndrome (PFPS) is a common disorder, characterized by pain located anteriorly in the knee. The exact etiology has not been clearly defined yet.
Various exercises have been used in PFPS, all influencing stress in the patellofemoral joint in different ways. The aim of this study was, to investigate the effects of squat exercises with various tools such as a gym ball, a wedge and an elastic band.