The gluteus maximus is a skeletal muscle of the buttock, specifically the largest and most superficial muscle in the gluteal (hip) region that moves and stabilizes the hip joint.

What muscle is the gluteus maximus?

  • It is one of the three gluteal muscles (gluteus maximus, medius, and minimus) that make up the buttock region.
  • Structurally, it is a large, thick, fan-shaped skeletal muscle that covers most of the other gluteal muscles and the back of the hip joint.
  • Functionally, it is the primary hip extensor, helping straighten the thigh/torso from a bent position and contributing to external rotation and some abduction of the hip.

Where it is and what it does

  • Location: Posterior hip and buttock, running from the back of the pelvis (ilium, sacrum, coccyx) to the femur and iliotibial band.
  • Main actions:
    • Extends the hip (standing up from a chair, climbing stairs, running).
* Externally rotates the hip.

* Helps stabilize the pelvis and trunk when standing, walking, or running.

Quick Scoop (for your post)

  • The gluteus maximus is the big buttock muscle at the back of your hip.
  • It is a powerful skeletal muscle that straightens and rotates your hip and helps keep you upright when you move.
  • Everyday moves like getting up, climbing, or sprinting rely heavily on this muscle for power and stability.

Information gathered from public forums or data available on the internet and portrayed here.