Which group of muscles is primarily known as hip flexors?

The iliopsoas is known as the primary hip flexor group due to its anatomical structure and function. This group consists of two muscles: the iliacus and the psoas major. Together, they are responsible for flexing the thigh at the hip joint, which is a crucial movement in various activities such as walking, running, and climbing stairs.

The iliopsoas originates from the lumbar spine and the iliac fossa of the pelvis, allowing it to effectively perform the hip flexion movement. Its unique positioning and mechanical advantage make it the dominant muscle in this action, particularly when the hip is flexed beyond 90 degrees or during strenuous activities that require strong hip flexion. Understanding the role of the iliopsoas is essential for recognizing how hip movement is executed and the implications for sports and rehabilitation practices.