The buttocks are comprised of two major muscle groupings: the gluteals and a series of superficial muscles. The gluteals include the following muscles: gluteus maximus, gluteus medius, and gluteus minimius. The superficial group of muscles attaches to the hip from the buttocks are the inferior gemellus, obturator internus, piriformis, quadratus femoris, and the superior gemellus.
While women are more prone to seeking out butt exercises as means to firm and tone the gluteal muscles, men should not neglect this area. Strong development of the buttocks can lessen the potential for injury and possible muscle tears.