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 ...

Your quads, or quadriceps femoris muscle group, are four separate muscles that run along the front of your thigh between your hip and your knee. It's one of the largest (and strongest) muscle ...

The seated knee extension targets the quadriceps—rectus femoris, vastus lateralis, vastus intermedius, and vastus medialis—a group of four muscles on the front of your thigh that straighten ...

Objective Rectus femoris and iliopsoas contracture is a specific risk factor ... Measurement of the contracture was completed with the patient in recumbent prone position and with the quadriceps in a ...