The "bus driver" exercise is where you hold a plate at arms length in front of you and rotate slowly. It's a hugely underrated movement. It's an excellent way to finish the shoulder workout and make the joint more resilient to injuries.
Start with a 10 or a 25 and work your way up to 45 pounds.
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Tip: The Neutral-Grip Shoulder Press
This is a great exercise that builds you delts while also protecting joint integrity. The cable is attached at the bottom of the handle, so you'll be pushing up, not pulling down.
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