Strong shoulders are essential for improving muscular size and strength across your entire upper body. The main shoulder muscles – the deltoids – are made up of three parts: one at the front of the joint, one at the side and one at the back. Inside the joint is a group of four small but crucial stabilising muscles called the rotator cuff. Weak shoulders will, at best, limit the amount of weight you can manage for every upper-body exercise; at worst, you’ll end up injured.
The shoulder press is the undisputed king of all shoulder exercises, because it directly engages every shoulder muscle and allows you to lift the most load for maximum strength and muscle progression. It’s also easily scalable for both beginners and more seasoned lifters.