Erin Banks said he's seen major leg muscle gains by incorporating hack squats into his lower body workouts to work his quads instead of his core.

With ribcage stacked over pelvis, send hips back and bend the knees, as if sitting onto a chair behind you. Keep your chest ...

Erin Banks said he's recently made major lower body gains by using hack squats to build leg muscle.Courtesy of Celsius Elite physique athlete Erin Banks said hack squats are a key exercise for his leg ...