Performing the: A Step-by-Step Tutorial Barbell Squat with Chains
Position yourself under the barbell, resting it on your upper back and shoulders, then grasp the bar with your hands wider than shoulder-width apart, and lift it off the rack by straightening your legs.
Step back from the rack and position your feet shoulder-width apart with toes slightly pointing outward; this is your starting position.
Begin the exercise by bending at your knees and hips, lowering your body as if you're sitting back into a chair, keeping your chest up and your back straight; continue until your thighs are parallel to the floor.
Push back up to the starting position by driving through your heels, straightening your hips and knees, and repeat the process for the desired number of reps.