This style of lunge is actually slightly better than the forward lunge when it comes to building muscle, partly because it's harder to compensate with the lower back, so your form is better.
If your goal is to build your quads, this reverse lunging style also beats the forward lunge, which is better for glutes and hamstrings.
If you can't hit proper depth, stop going up in weight. A squat is not a slight knee-bend or a curtsy. This clever trick will help you stop being lame.
Got a set of biceps like Justin Bieber's body double? Four of Testosterone's heavy hitters offer up proven strategies to add inches to your elbow flexors.