Rear delt raises can build shoulder muscles, but the exercise is often done in the least efficient form. Here's what you need to know for better training.

This move activates the lateral and rear delts, but poor form often turns it into a trap-dominant exercise. It also places the shoulders in internal rotation, which can exacerbate joint pain.

Fortunately, there's a key exercise, relatively simple yet incredibly effective, to target this area directly: the Rear Delt Fly (or Dumbbell Reverse Fly, if you prefer it in English).

For incline rear delt flys, it's best to set the bench angle to a fairly low angle – lower than you would for exercises like incline dumbbell presses (lower than 45-degrees).