Dumbbell Bent Over Alternate Rear Delt Fly

Perform the dumbbell bent over alternate rear delt fly to target your rear deltoids and upper back.

  1. Stand with your feet shoulder-width apart, holding a dumbbell in each hand.
  2. Bend your knees slightly and hinge at the hips, keeping your back straight and torso parallel to the ground.
  3. With palms facing each other, lift one dumbbell out to the side until your arm is parallel to the ground.
  4. Lower the dumbbell back to the starting position and repeat with the opposite arm.

How to perform the Dumbbell Bent Over Alternate Rear Delt Fly

  1. Set up. Set up in a stable, balanced starting position appropriate for the Dumbbell Bent Over Alternate Rear Delt Fly using your dumbbell.
  2. Brace and execute. Brace your core, control the descent, and move through a full pain-free range of motion while emphasizing your trapezius.
  3. Reset. Reverse the movement under control and reset between repetitions, keeping your form crisp on every rep.

Coaching cues

  • Move with intent — every rep should feel deliberate, not rushed.
  • Drive force through your trapezius rather than momentum.
  • Keep your breathing steady: exhale on the hard part, inhale on the reset.

Common mistakes

  • Using too much weight and losing positional control.
  • Cutting the range of motion short and missing the target muscle.
  • Letting your spine round or hyperextend instead of staying neutral.

Detailed cues, common mistakes, and demonstration video are available in the Fitly app.

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