Balance on one leg and hinge for hammies and stability.
Square your hips to the floor, don't let the free leg's hip pop open.
Hinging on one leg loads the standing hamstring through a deep, controlled stretch while the glute drives you back to tall, and the kettlebell's compact shape hangs naturally from the hand as a counterweight. Because each side works alone, the movement trains balance, foot stability and hip control alongside the muscle, things a two-legged hinge never asks for. It is a small load with a big return, especially for evening out sides.
Either works, but holding it in the hand opposite the standing leg is the most common choice because it counterbalances you and makes the hips easier to keep square. Same-side holds are a fine variation once you own the balance.
The bell's handle sits high with the mass hanging low, so it dangles naturally from your grip without crowding your leg on the way down. It simply suits a movement where balance is half the battle.
Usually the free-side hip is opening up as you hinge, which corkscrews your whole line. Keep both hips pointing at the floor, grip the ground with your standing foot, and slow the descent right down. Wobbling less is the progress.
