Booty Busting Series--Best Exercises to Build that Butt #12: Forward Leaning Lunges

Lunges are good for your legs and they do work your glutes, but not as effectively as they could. Leaning forward increases the recruitment of the hamstrings and glutes, as opposed to just the quads. If you want to build your booty, it's a good idea to try your lunges with a bit of forward lean. As a bonus, you take a lot of the strain off your knee by leaning forward. Keeping your torso upright can often lead to knee pain, which is why your body naturally tries to pull you forward as you lunge. These forward-leaning lunges will help to reduce knee strain, minimizing the risk of injury and pain. [caption id="" align="aligncenter" width="600"] Source: cathe.com[/caption]

Forward-Leaning Lunges

Stand with your feet together, your back straight, and your arms hanging by your side. Use dumbbells if you can, or do it with bodyweight alone. Step forward with your right foot, placing it flat on the floor and dipping into your lunge. Drop until your right leg is bent at a 90 degree angle. As you lower into the lunge, keep your back straight and lean forward until your face is above your knees. Repeat as desired with both legs.  

Resources: http://www.musclemag.com/add-mass-to-your-ass/