Sissy squats may sound like a move that belongs on a playground, but trust me—there's nothing "sissy" about this killer lower-body exercise. In fact, aside from pistol squats and cossack squats ...

Sissy squats are intentionally quad-dominant. They're as close as you can get to an isolation exercise for the front of the thighs without straying onto the leg extension machine – and they work in a ...