1b) Scapular Wall Slide
Sets: 3 Reps: 10
Stand with your back against a wall with your arms overhead (you should look like you're being held up). Squeeze your shoulder blades together. Keeping your back, shoulders, and arms flat against the wall, slowly pull your arms down, bending your elbows as you lower them until you look as if you're in the bottom of a shoulder press. Recover fully before you return to the bench press.