Should I touch the dumbbells together at the top of the chest fly?

Bringing the dumbbells close together or lightly touching is acceptable, but avoid banging them together. The peak contraction occurs just before they meet, so focus on squeezing your chest rather than clanging the weights.

What is the difference between a chest fly and a chest press?

A chest fly maintains a fixed elbow angle throughout the movement, creating an arc motion that isolates the chest. A chest press involves bending and extending the elbows, which recruits the triceps and shoulders as secondary movers.

How much elbow bend should I use during dumbbell chest flys?

Maintain a 10 to 30 degree bend at the elbow, enough to protect the joint without turning the movement into a press. The exact angle depends on your shoulder mobility and comfort, but it should remain constant throughout each rep.

Chest Fly (Dumbbell)

The chest fly is an isolation exercise performed lying on a flat bench, using dumbbells to create an arc motion that stretches and contracts the pectoral muscles. It suits lifters looking to build chest width and improve mind-muscle connection after compound pressing movements.

Muscle group: Chest
Primary muscles: chest
Equipment: Dumbbell

How to do the Chest Fly (Dumbbell)

Lie flat on a bench with feet planted on the floor, holding a dumbbell in each hand directly above your chest with palms facing each other.
Maintain a slight bend in your elbows and lock this angle throughout the movement.
Lower the dumbbells out to your sides in a wide arc until you feel a stretch across your chest, keeping the angle at your elbows constant.
Reverse the motion by squeezing your chest to bring the dumbbells back together above your chest along the same arc path.

Form tips

Keep the same elbow bend throughout the entire range of motion rather than turning the fly into a press.
Lower the dumbbells until your elbows are roughly level with your torso or slightly below, avoiding excessive stretch that stresses the shoulder joint.
Focus on moving the weight with your chest muscles rather than your shoulders by imagining you are hugging a large barrel.

Common mistakes

Straightening the arms too much: this shifts tension away from the chest and increases stress on the elbow and shoulder joints.
Lowering too deep past shoulder level: this places the shoulder in a vulnerable position and increases injury risk without additional muscle benefit.
Using momentum or bouncing at the bottom: this reduces time under tension for the chest and can strain the shoulder capsule.

Sets and reps

For hypertrophy, perform 3 to 4 sets of 10 to 15 reps with moderate weight and controlled tempo, while strength-focused training is less common for this isolation movement.

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Frequently asked questions

Should I touch the dumbbells together at the top of the chest fly?: Bringing the dumbbells close together or lightly touching is acceptable, but avoid banging them together. The peak contraction occurs just before they meet, so focus on squeezing your chest rather than clanging the weights.
What is the difference between a chest fly and a chest press?: A chest fly maintains a fixed elbow angle throughout the movement, creating an arc motion that isolates the chest. A chest press involves bending and extending the elbows, which recruits the triceps and shoulders as secondary movers.
How much elbow bend should I use during dumbbell chest flys?: Maintain a 10 to 30 degree bend at the elbow, enough to protect the joint without turning the movement into a press. The exact angle depends on your shoulder mobility and comfort, but it should remain constant throughout each rep.

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