STARTING POSITION:
Place the pulleys on a position above your head. Select the appropriate resistance in the weight stacks. Grab the handles of the pulleys, you should be in the middle of them. Your elbows should be slightly bent, your hands should be slightly under your shoulders and your arms should be in line. Place a foot in front of you for a more stable position. Contract your pelvic floor and core.
MOVEMENT:
Using your pectoral and back muscles, move the handles towards the hips while you exhale. Return to the starting position with a smooth movement while you inhale.
TIPS: The exercise key is quality over quantity. The trick is to perform the exercise using proper form. Your arms' line should always match the line of the pulleys. While your are doing the exercise, move only the shoulder joint, make sure you don't move any other part of your body. During the opening, focus on slow and controlled movement.