Barbell Side Split Squat

The lateral squat with a bar on the back: from a wide stance, sit into one hip, the other leg straight.

How to do it

Setup

Bar on the upper back, feet very wide, toes forward or slightly out.

Steps

Shift over one foot and sit into that knee.
Keep the other leg straight, its sole flat.
Push back to the middle and switch sides.

Common mistakes

Bar tilting as you shift: the hands keep it level across the back. Bent knee caving inward: it tracks the toes. Rounding forward to go deeper: chest up; stop where the back stays flat.

Breathing

Inhale sitting in, exhale shifting up.