Which glute muscle is most involved in external rotation?

The gluteus maximus is indeed the primary muscle responsible for external rotation of the hip. This large muscle, located in the posterior aspect of the pelvis, plays a vital role in various movements, including walking, running, and particularly when the hip is flexed.

The gluteus maximus not only aids in external rotation but also contributes to hip extension and adduction. This muscle's positioning and extensive size allow it to exert a significant influence on the hip joint, particularly in its ability to turn the knee outward away from the midline of the body.

While other muscles, like the gluteus medius and gluteus minimus, do have some roles in hip movement, they are more associated with stabilization and internal rotation rather than being the primary drivers of external rotation. The biceps femoris, primarily known as a hamstring muscle, does contribute to hip function and may assist in movement but is not classified as a glute muscle involved in external rotation in the same significant way as the gluteus maximus.

Understanding the specific functions of these muscles is crucial for targeting and strengthening them effectively in a glute training program.