Chest Supported Dumbbell Rear Delt Fly

Chest Supported Dumbbell Rear Delt Fly focuses on the rear shoulders and upper-back stabilizers while the trunk or chest support keeps momentum out of the movement.

Primary muscle

Shoulders

Primary musclesPosterior deltoids, Rhomboids, Middle trapezius

Secondary musclesInfraspinatus, Teres minor, Lower trapezius

Equipment

Dumbbells

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How to perform Chest Supported Dumbbell Rear Delt Fly

Follow the sequence in order, paying attention to the starting position, movement path, and finish described in each step.

For Chest Supported Dumbbell Rear Delt Fly, support the chest on the bench or ball and let the arms reach below the shoulders with the elbows softly bent; draw the shoulders away from the ears.
Maintain a small fixed bend in the elbows and keep the wrists straight before raising the arms.
Move the hands outward and back while maintaining the same small bend in the elbows.
Finish with the rear shoulders working and the shoulder blades controlled, not aggressively pinched.
Return the arms slowly without letting the load pull the shoulders forward.

Common Chest Supported Dumbbell Rear Delt Fly mistakes

Shrugging to lift

Keep the neck relaxed and move from the rear shoulder rather than elevating the shoulder blades.

Changing the elbow angle

Maintain the same small elbow bend so the fly or Y raise does not become a row.

Using trunk momentum

Keep the chest support or hip hinge still and reduce the load if the torso moves.

Over-squeezing the shoulder blades

Finish when the rear deltoids are shortened without forcing the shoulders into an aggressive pinch.

When to modify or choose another exercise

Shrugging to lift: Keep the neck relaxed and move from the rear shoulder rather than elevating the shoulder blades.
Using trunk momentum: Keep the chest support or hip hinge still and reduce the load if the torso moves.
Stop when the exercise produces sharp, catching, radiating, or increasing joint pain rather than the expected muscular effort.
Alternative Supported Chest Supported Dumbbell Rear Delt Fly: Hold a stable support or use an easier setup while learning the movement.

How to use Chest Supported Dumbbell Rear Delt Fly in a training program

Where it fits in a session

Place Chest Supported Dumbbell Rear Delt Fly after compound upper-body work; any warm-up use should stay light and focused on control rather than fatigue.

How often to use it

Use two or three times per week while counting rows and other rear-shoulder work.

Starting rep ranges by goal

Goal	Sets	Reps or time	Rest	Effort and execution
Strength accessory	2–4	6–10	75–150 sec	Leave 2–3 controlled reps in reserve
Muscle growth	2–4	10–20	60–120 sec	Usually 1–3 clean reps in reserve

Pairing and sequencing

Use Chest Supported Dumbbell Rear Delt Fly after Incline Dumbbell Chest Press or Seated Dumbbell Shoulder Press.
Pair it with Seated Dumbbell Lateral Raises for a focused shoulder accessory block.

Scale the movement