Exercise Advice: This exercise is the same as the regular Barbell Shrugs except that you will be holding the barbell behind your back instead of in front of your body. Stand with your legs about shoulder width apart and hold a barbell with both hands. Using an overhand grip, allow the barbell to hang down behind your back so that your arms are fully extended. To execute this movement, simply shrug your shoulders while keeping your arms completely straight. Be sure that you hold your shoulders in the shrug position for a one-count at the top of the movement. Return to the start position and repeat for the desired amount of repetitions.