Incline Dumbbell Fly

Muscles Incline Dumbbell Fly Works

Main muscleLie on an incline bench and open the dumbbells out to your sides, then bring them back together over your upper chest. The main muscle driving this movement is your upper pecs. Your upper pecs pull your upper arms inward and bring the dumbbells back over your upper chest.

Supporting musclesYour front delts help guide your arms forward, and your biceps help hold a steady elbow bend throughout the movement.

How it should feelAs you open the dumbbells, your upper chest should stretch wide. As you bring them back together, the area below your collarbones should squeeze inward.

Signs you're offIf your elbows fully straighten or the dumbbells drop too far behind your body, your shoulders can take too much stress. If your elbows bend a lot, the exercise turns into more of a press.

Remember thisKeep a soft bend in your elbows and move the dumbbells in a wide arc over your upper chest.

Muscles used

• Upper pecsupper chest just below the collarbones
• Front deltsfront of the shoulders
• Bicepsfront of the upper arms

Setting Up for Incline Dumbbell Fly

Setup orderSet the bench angle → Place matching dumbbells beside the bench within reach

• Incline bench angle

  Set it like thisSet the bench backrest to about 30–45°. If there are no numbers, set it so the backrest looks diagonal, not flat or upright.

  How to checkThe backrest should not look like a chair, and it should not be close to flat.

• Pair of dumbbells

  Set it like thisPlace two dumbbells of the same weight on the floor beside the bench.

  How to checkMake sure the weight labels match and both dumbbells are within reach from a seated position.

Watch out forAvoid setting the bench too upright, using mismatched dumbbells, or placing them where you need to twist to reach them.

Stance for Incline Dumbbell Fly

Foot widthLie on the incline bench and place both feet comfortably on the floor.

Where your weight goesKeep your hips and upper back on the bench, and keep both feet firmly on the floor.

Upper body positionLie so the dumbbells can start steady above your upper chest.

Why it mattersIf your body shifts, it becomes harder to open and close the dumbbells steadily, and your shoulders may feel more stress.

How to Grip for Incline Dumbbell Fly

Grip typeHold one dumbbell in each hand, with your palms facing each other.

Grip widthHold the center of each dumbbell handle so both ends are left evenly.

How hard to gripPlace the dumbbells in the middle of your palms, and keep the backs of your hands in line with your forearms.

The Key Point for Incline Dumbbell Fly

Keep your elbows slightly bent, spread the dumbbells to the sides of your upper chest, and bring them back up.

Think of it like thisThe feeling of keeping the elbow angle exactly as it is.

Before the fixMy arms bend too much and become like a press, or my shoulders feel uncomfortable first.

After the fixThe upper chest stretches out and tightens, and the dumbbell moves stably.