Iliacus muscle

Piriformis muscle

Psoas major muscle

An exercise I guarantee you’re NOT doing. Even if you’re training hip flexors I can almost guarantee you’re not going this one. ☝️ #pectineus The Pectineus: The Tiny Hip Flexor That Causes BIG Problems Most people have no idea this deep little muscle even exists… until it starts screaming. The pectineus sits high in your groin and works hard every time you flex your hip, stabilize your pelvis, or pull your leg inward. And when it gets tight or overactive? You feel it in the groin, hip, low back,