Hip abductors

The muscles on the side of the hip that lift the leg out and, crucially, stop the pelvis dropping when you stand on one leg. Weakness here is behind a lot of knee and hip pain.

This muscle in 3D

Drag to rotate · scroll to zoom — see the shape, origin and insertion of the hip abductors. 3D model via Sketchfab (CC-BY).

Anatomy

Muscles: Gluteus medius, gluteus minimus, tensor fasciae latae (TFL)

Origin: Outer surface of the ilium (pelvis); TFL from the anterior iliac crest.

Insertion: Greater trochanter of the femur; TFL into the iliotibial (IT) band.

Actions:

Hip abduction (leg out to the side)
Pelvic stabilisation in single-leg stance (the key role)
Internal rotation (anterior fibres) and external rotation (posterior fibres)

How the muscle works

Most of their work is isometric: during every step, the stance-leg abductors contract to keep the opposite side of the pelvis from dropping (Trendelenburg control). This keeps the knee tracking correctly.

Fibre-type bias: Postural, endurance-biased (type I) — they work at low levels all day during walking and standing.

Functional role: Level pelvis and stable knee during walking, running, stairs and single-leg movement.

Common problems

Gluteus medius weakness → hip drop, IT-band syndrome, patellofemoral knee pain
Gluteal tendinopathy (lateral hip pain)

Training & stretching

Side-lying leg raises, banded lateral walks, single-leg stance work, step-downs.

Figure-4 / crossed-leg glute stretch and standing IT-band-region stretches.