Exercise library · Chest
Flat Dumbbell Fly.
An isolation movement emphasizing chest adduction and stretch, targeting the pectoral muscles.
BeginnerDumbbells, Bench
The numbers
Sets
3–4
Reps
10–15
Rest
45–75
Muscles
Primary
Chest
Secondary
Front delts
The play-by-play
How to do it.
- Step 01
Lie on a flat bench with a dumbbell in each hand, arms extended above your chest.
- Step 02
Maintain a slight bend in your elbows throughout the movement.
- Step 03
Open your arms in a wide arc, lowering the dumbbells to the sides until you feel a stretch.
- Step 04
Keep your elbows fixed and focus on the stretch in your chest.
- Step 05
Bring the dumbbells back up in the same wide arc, squeezing your chest.
- Step 06
Stop just before the dumbbells touch at the top to maintain tension.
What separates good from great
Pro cues.
Use light-to-moderate loads to prevent shoulder injury.
Avoid excessive shoulder stretch at the bottom of the movement.
Lead with your elbows, not your wrists, to engage the chest effectively.