Exercise guide
Dumbbell Incline Alternate Neutral Grip Reverse Fly
- Intermediate
- Isolation
- Rep-based
- Back
- Shoulders
This exercise isolates the posterior deltoids and middle trapezius by using an incline bench to eliminate momentum and provide stability. The alternating neutral-grip approach allows for focused unilateral tension and a shoulder-friendly range of motion.
Reviewed by the Crucible team · Updated June 2026
Muscles worked
Setup
- Set an incline bench to a 30-45 degree angle.
- Lie chest-down on the bench with your feet firmly on the floor and your chin just above the top edge.
- Hold a dumbbell in each hand with a neutral grip (palms facing each other) and let your arms hang straight down.
- Engage your core and slightly retract your shoulder blades to create a stable base.
How to do it
- Exhale as you raise one arm out to the side in a wide arc, keeping a slight, fixed bend in the elbow until the arm is parallel to the floor.
- Inhale as you slowly lower the dumbbell back to the starting position with a controlled 2-second tempo.
- Perform the same movement with the opposite arm, alternating sides for each repetition.
- Focus on leading the movement with your elbows rather than your hands to maximize rear delt recruitment.
Form checklist
- Keep your chest in constant contact with the bench to prevent swinging.
- Maintain a neutral neck position by looking slightly down or straight ahead.
- Avoid shrugging the shoulders toward your ears during the lift.
- Ensure the movement is strictly at the shoulder joint, keeping the elbow angle locked.
Pro tips
- Imagine pushing the dumbbells 'out' toward the side walls rather than 'up' to better isolate the posterior deltoid.
- Pause for a half-second at the top of the movement to maximize peak contraction in the rear delts and mid-traps.
Make it harder
- Increase the eccentric phase to 4 seconds to maximize time under tension.
- Hold the non-working arm in a static contraction at the top of the movement while the other arm performs its repetition.
Frequently asked
- What muscles does the dumbbell incline alternate neutral grip reverse fly work?
- The dumbbell incline alternate neutral grip reverse fly primarily targets the deltoids, and also works the rhomboids as secondary muscles.
- What equipment do you need for the dumbbell incline alternate neutral grip reverse fly?
- The dumbbell incline alternate neutral grip reverse fly uses dumbbell.
- Is the dumbbell incline alternate neutral grip reverse fly good for beginners?
- The dumbbell incline alternate neutral grip reverse fly is rated intermediate. Build a base with simpler variations first, then progress to it with light load and strict form.