If you care about your shoulders, you should avoid this old-school bodybuilding lift. "It's a really vulnerable position for the shoulder girdle, because the rotator cuff is at a mechanical disadvantage," says Eric Cressey, co-founder of Cressey Performance (Hudson, Massachusetts). "Plus, it doesn't afford any benefit over pressing from the front." If you see this move in a workout program or a fellow gym-goer suggests it, always say "no."
The 7 Most Dangerous Exercises for Your Shoulders
History of shoulder pain? Stay the heck away from these 7 exercises.