Glut

The muscles on your buttocks (glutes) work along with your hamstrings and quads to draw your leg backward and to extend it forward. Your glutes also affect a wide range of hip motion including rotation, adduction and more. If you have weak glutes, you'll have difficulty controlling your hip and thigh movement. Your body will compensate by using other muscles, but your movements will be weaker and you'll be at higher risk for injury.

Buttock / lower back