Dumbbell Flye — how to, muscles worked, alternatives

How to do the Dumbbell Flye

Lie back on a bench, feet flat, holding a dumbbell in each hand.
Turn your palms toward each other, keeping a slight bend in your elbows.
Slowly lower the weights out to the sides in a wide arc.
Bring the dumbbells back up, squeezing your chest as you finish.

Full technique — 7 steps

Lie on a flat bench with feet planted and a dumbbell held above your chest in each hand.
Turn your palms to face each other and keep a slight, fixed bend in your elbows.
Set your shoulder blades down into the bench and hold the dumbbells over your chest.
Lower the weights out to your sides in a wide arc without changing your elbow angle.
Descend until your chest is fully stretched and your upper arms reach bench level or slightly below.
Bring the dumbbells back together along the same arc by drawing your upper arms inward.
Finish with the dumbbells above your chest without letting them drift behind your shoulders.

Common mistakes

Turning the flye into a press
Bending and straightening the elbows
Dropping too deep at bottom
Letting shoulders roll forward
Bringing dumbbells too far back

Form cues

Slight elbow bend
Move through the shoulders
Stretch, don't force depth
Match the same arc
Keep shoulders down and back

Substitutes by equipment

Same muscles, same movement — pick the version you have the gear for.

Where to start and where to go next

Same muscles, same movement. Too hard for now — step down; once it gets easy — step up.

Easier Lying Svend Press Beginner
Easier Dumbbell Floor Flye Beginner
This exercise Dumbbell Flye Beginner
Harder Stability Ball Dumbbell Flye Intermediate
Harder Suspension Trainer Chest Fly 80% of bodyweight

Too hard for now? Start with the Dumbbell Floor Flye.

Quick answers

What muscles does the Dumbbell Flye work?

Primary: Mid chest 9/10. Also works: Front delts 4/10.

When should I do the Dumbbell Flye in a workout?

Finisher. Goes last, once the heavy work is done. ≈ 6 min with rest.

How many sets and reps of the Dumbbell Flye?

Muscle growth: 3–4 sets of 8–12 reps, rest 1 min 15 s, 2–3 reps in reserve. Endurance: 2–3 sets of 15–20 reps, rest 45 s, 3–4 reps in reserve.

What can I do instead of the Dumbbell Flye?

Resistance bands: Resistance Band Chest Fly, Single Arm Resistance Band Chest Flye. Kettlebell: Single Arm Kettlebell Flye. Cable machine: Lying Cable Flye, Mid Cable Flye. No equipment: Standing Bodyweight Flye.