Rear Delt Fly
Rear deltoids
Rhomboids
Middle trapezius
dumbbell

Setup
Sit on the edge of a bench or stand with feet shoulder-width apart. Hinge at the hips to lean your torso forward until it is nearly parallel to the floor, keeping your back straight.
How to perform
- Hold a dumbbell in each hand with a neutral grip, palms facing each other, and let them hang straight down.
- Keeping a slight bend in your elbows, raise your arms out to your sides in a wide arc until they are in line with your shoulders.
- Squeeze your shoulder blades together at the top of the movement.
- Slowly and with control, lower the dumbbells back to the starting position.
Form cues
- Keep your back straight and core engaged.
- Lead the movement with your elbows.
- Avoid shrugging your shoulders; keep them down and back.
- Maintain a constant, slight bend in the elbows.
Common mistakes
- Using momentum or swinging the weights.
- Rounding the back.
- Lifting the torso during the movement.
- Bending the arms excessively, turning the exercise into a row.