The back extension, also known as the hyperextension is a movement that doesn’t get as much love as it probably should. But that’s because it’s not as well known as the squat, deadlift, or even hip thrust.
In this demonstration, I’m going to show you how to do the movement with proper form and how to target your glutes and hamstrings, not your lower back.
However, it’s a great movement for the glutes and hamstrings when done properly. And despite its name, you aren’t necessarily extending at the hips. It could be said it’s more trunk flexion and extension, similar to doing crunches on the floor, or Superman exercises on your belly (which are great for spinal erectors).