Stretching exercises improve flexibility and prevent tight muscles, a common cause of patellofemoral pain syndrome (PFPS).

Objective: To investigate atrophy and weakness of the quadriceps femoris muscle group in patients with PFPS using measures of cross-sectional area and peak extension torque. Methods: A total of 57 ...

medically known as patellofemoral pain syndrome (PFPS) causes pain to the front of the knee or around the kneecap and can be caused by stressors such as weak muscles or excessive training.

PFPS was operationally defined as pain that was located around ... They were directed to contract their gluteal muscles and attempt to run with their knee pointing straight ahead, while maintaining a ...