Hip Flexor Muscles and Injuries

The hip flexor muscles are a group of muscles situated near the top of your thighs that allow you to lift your knee toward your chest, squat, and bend forward at the hip. The five key hip flexor muscles include the iliacus, pectineus, psoas major, rectus femoris, and sartorius, which work together to enable hip flexion. When these muscles are involved in explosive leg movements or placed under extreme stress while jumping or running, they can be injured.