Which muscle works in conjunction with the gluteus maximus in hip extension?

The gluteus maximus is the primary muscle responsible for hip extension, and it works in conjunction with several other muscles. The piriformis is particularly significant in this action because it not only assists in hip extension but also plays a role in hip abduction and lateral rotation of the hip joint when the hip is flexed.

When the gluteus maximus contracts to extend the hip, the piriformis can aid by stabilizing the hip and contributing additional force depending on the position of the hip and the specific movement being performed. This synergistic action is important for activities that require both strength and stability, such as squats, running, or climbing.

Understanding this relationship helps to highlight the complex interplay between muscles around the hip joint, especially during powerful movements like running or jumping, where both the gluteus maximus and piriformis engage to optimize performance and reduce the risk of injury.