Sit up straight with a tight core. Reach forward and take an neutral grip on the handle in front of you. Keeping your traps relaxed and focusing the tension on your lats, pull the weight towards you, exhaling as you do so. Pause when the handle is at your side and squeeze your back. Slowly, return the weight to the starting position by extending your arm but do not set it down. Repeat all the required reps on one arm before changing to the other.