This exercise is recommended for those people who want to add some more volume to their chest routine & bring up some lagging parts.
Just like any other chest movement, it’ll be extremely important for you to keep your scapulas depressed and adducted (pulled down and back) in order to properly execute, and get the most, out of this exercise.
As you set up for the exercise, you want to grab both cables and stay in the middle, one foot step forward for a stable & solid set up and both arms slightly bent to your sides in order to prevent stress at the biceps tendon.
Extend your arms to the lower side (straight out at both sides) in a wide arc until you feel a stretch on your chest. Breathe in through your chest/diaphragm as you perform this portion of the movement and keep in mind that throughout the movement, the arms and torso should remain stationary, allowing the movement only to occur at the shoulder joint.
Come up with your arms as you’re about to hug a very wide person and then come down. Repeat.