This way, you totally fatigue your entire leg and butt muscles in a short amount of time. (ashotofadrenaline.net)
As you lower, you should feel your hamstrings and middle and lower butt muscles engaging — not your upper legs and knees. (dailyburn.com)
But here we will concentrate on the specific butt building exercises, plan workouts designed to build even the most stubborn butt muscles. (exercisegoals.com)