Exercise guide
Dumbbell Incline Fly
- Intermediate
- Isolation
- Rep-based
- Chest
The Dumbbell Incline Fly isolates the clavicular head of the pectoralis major (upper chest) and anterior deltoids, emphasizing a deep stretch and peak contraction to improve chest width and definition.
Reviewed by the Crucible team · Updated June 2026
Muscles worked
Setup
- Set an adjustable bench to a 30 to 45-degree incline.
- Sit on the bench and rest the dumbbells on your thighs, then kick them up as you lie back.
- Press the weights directly above your upper chest with a neutral grip (palms facing each other).
- Retract your shoulder blades into the bench and plant your feet firmly on the floor for stability.
How to do it
- Inhale and slowly lower the dumbbells in a wide arc out to the sides, maintaining a slight, fixed bend in your elbows.
- Continue the descent until you feel a deep stretch across your upper chest, stopping when your elbows are roughly level with your torso.
- Exhale and reverse the movement by squeezing your chest to bring the weights back to the starting position.
- Follow a controlled tempo, taking 3 seconds to lower the weights and 1 second to bring them back together.
Form checklist
- Maintain a consistent slight bend in the elbows; do not turn the movement into a press.
- Stop the dumbbells just short of touching at the top to maintain constant tension on the pectorals.
- Keep your shoulder blades retracted and pinned against the bench throughout the set.
- Ensure the movement occurs only at the shoulder joint, keeping the wrists and elbows locked in position.
Pro tips
- Imagine you are hugging a large barrel to maintain the correct circular arc and maximize chest engagement.
- Focus on bringing your inner biceps toward your pecs at the top of the movement rather than just moving your hands.
- Squeeze your chest hard at the peak of the movement for one second to enhance mind-muscle connection.
Make it harder
- Incorporate a 2-second isometric pause at the bottom of the rep to challenge the chest in the fully lengthened position.
- Perform '1.5 reps' by lowering the weight, coming halfway up, returning to the bottom stretch, and then completing the full rep.
Frequently asked
- What muscles does the dumbbell incline fly work?
- The dumbbell incline fly primarily targets the pectorals, and also works the abs and serratus anterior as secondary muscles.
- What equipment do you need for the dumbbell incline fly?
- The dumbbell incline fly uses dumbbell.
- Is the dumbbell incline fly good for beginners?
- The dumbbell incline fly is rated intermediate. Build a base with simpler variations first, then progress to it with light load and strict form.