Set the Smith machine bar to just below knee height and lock it in place.
Position your feet shoulder-width apart with toes pointing forward.
Keeping your torso upright and spine neutral, sit back into a squat as though you’re sliding down a wall, until your thighs are parallel to the ground.
Ensure your knees remain in line with your toes and do not collapse inwards
Maintain an upright trunk and avoid leaning forward. You should feel a strong contraction in the front of your thighs.
