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Dumbbell Incline Fly animation

How to do the Dumbbell Incline Fly

ChestDumbbellIntermediate

The dumbbell incline fly isolates the upper chest with a deep, controlled stretch that pressing movements alone can't replicate. Master this exercise and you'll build the clavicular fullness that separates a developed chest from an average one.

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Muscles worked

Primary
Pectorals (chest)
Secondary
Front deltsTriceps

Step-by-step

  1. Set the bench to 30 to 45 degrees, lie back with dumbbells held directly above your chest, palms facing each other and a soft bend locked into your elbows.
  2. Lower the dumbbells in a wide arc until you feel a deep stretch across your upper chest, keeping that elbow angle constant throughout.
  3. Reverse the arc by squeezing your chest as if you are hugging a barrel, driving the dumbbells back to the top without letting them clang together.
  4. Control every inch of the descent for a full 2 to 3 second negative, resisting the urge to let gravity do the work.

Common mistakes

  • Straightening the arms on the way down, which shifts stress onto the elbow joint and biceps tendon, so lock in a 15 to 20 degree elbow bend before you start and never change it.
  • Going too heavy and turning the fly into a press, so choose a weight that lets you feel a genuine pec stretch at the bottom rather than grinding through a half range of motion.
  • Setting the bench too steep at 60 to 90 degrees, which recruits the front deltoid instead of the upper chest, so keep the incline between 30 and 45 degrees for maximum pec activation.

Pro tip — Think about leading the movement with your elbows rather than your hands on the way up, this subtle internal cue keeps tension on the chest fibers and prevents your arms from inadvertently pressing the weight instead of flying it.

Sets & reps by goal

Build muscle3–4 sets × 6–10 reps
Get stronger4–5 sets × 3–6 reps
Lose fat / tone3 sets × 10–12 reps

Rest: 2–3 min between sets (60–90s on lighter days).

More Chest exercises

Barbell Bench PressBarbell Bench PressBarbell Decline Bench PressBarbell Decline Bench PressBarbell Decline Wide Grip PressBarbell Decline Wide Grip PressBarbell Front Raise And PulloverBarbell Front Raise And PulloverBarbell Incline Bench PressBarbell Incline Bench PressCable Bench PressCable Bench Press
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