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Dumbbell Rear Fly
A bent-over fly that sweeps the dumbbells out to the sides to train the rear deltoids and mid-back through a long, strict arc.
ShouldersDumbbellHorizontal abduction


Primary
Rear deltoids
Secondary
RhomboidsMiddle trapeziusSpinal erectors
Equipment
Dumbbell
Pattern
Horizontal abduction
Setup
- 01Stand with feet hip width apart holding light dumbbells.
- 02Hinge at the hips until the torso is near parallel with the floor.
- 03Let the arms hang with palms facing each other and elbows slightly bent.
- 04Set a flat back and a neutral neck.
Execution
- 01Sweep both dumbbells out and up in a wide arc.
- 02Keep the slight elbow bend locked in as the arms rise.
- 03Stop when the arms are level with the torso and squeeze briefly.
- 04Lower slowly back to the hanging position.
Checkpoints
- -The arc is wide; hands stay far from the body, not pulled in like a row.
- -The torso does not rise as the weights go up.
- -Shoulder blades assist naturally without a forced pinch.
- -The lowering phase is as controlled as the lift.
Common mistakes
- -Bending the elbows more as the set gets hard, shortening the lever.
- -Swinging the torso to generate momentum.
- -Going too heavy and losing the fly shape entirely.
- -Letting the weights drift toward the hips instead of staying wide.
Programming notes
- -Use 3 sets of 12 to 20 reps with deliberately light dumbbells.
- -Slow the eccentric to 2 to 3 seconds to increase stimulus without more load.
- -Program it after rows or presses as targeted rear delt volume.
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