Which muscle group assists in lateral rotation of the thigh?

The gluteus maximus is a large muscle located in the buttocks and is primarily responsible for the extension and lateral rotation of the hip joint. Its anatomical positioning allows it to effectively contribute to the lateral rotation of the thigh. This action is crucial for various movements, including walking, running, and changing direction.

The other muscle groups listed do not primarily function in lateral rotation of the thigh. The adductor group is mainly responsible for pulling the thigh toward the midline of the body. The quadriceps are primarily involved in knee extension rather than hip rotation, and although the hamstrings assist in hip extension and knee flexion, their role in lateral rotation is minimal compared to the gluteus maximus. Thus, when considering which muscle group effectively assists in lateral rotation of the thigh, the gluteus maximus stands out as the correct choice.