Keep the rear foot on a slightly elevated surface.
Get into a forward lunge position. Keep your core braced
Your leading front leg should be about two feet in front of the bench
SLIGHTLY lean forward your torso as you go down.
Throughout the movement make sure the leading front leg is rooted on the floor and is pressing evenly through your toes and your heel
As you go down, push your knee slightly outward,
Come back to the starting position and repeat the movement.