Position yourself for this exercise by standing upright with a barbell held behind you (arms fully extended) and your feet at approximately one shoulder widths distance from one another. Use a shoulder width grip for your hands as well with your palms facing away from your body (if it is difficult for you to grip the barbell in this manner, feel free to use wrist straps). In order to execute the movement, squat until your upper thighs are perpendicular to the floor. Ensure that you keep your head up and that your back is kept straight. Once your thighs reach this depth, press through the heels of your feet in order to straighten your knees until you are back in the starting position. Repeat for the prescribed number of repetitions.