Basic back squats are a pillar of strength. And while it's an important compound movement, it mainly focuses on your posterior chain. Not to mention, you need access to a gym or Smith rack at home. So ...
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 seen major leg muscle gains by incorporating hack squats into his lower body workouts to work his quads instead of his core.