Which muscle is the largest in the buttocks and supports much of the body's weight?

The gluteus maximus is recognized as the largest muscle in the buttocks and plays a key role in supporting much of the body's weight during various activities. Its size and strength contribute significantly to the stabilization of the pelvis and the extension of the hip joint, especially when standing from a seated position, climbing, or running. This muscle is crucial for movements that require powerful thrust, such as jumping or sprinting, as well as for maintaining an upright posture. The gluteus medius and gluteus minimus, while also important muscles in the hip region, are smaller and primarily involved in stabilization and abduction of the thigh. The quadratus lumborum functions primarily in the lumbar region of the back and does not contribute significantly to the structure or function of the buttocks. Thus, the gluteus maximus stands out as the principal muscle associated with the buttock area.