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Dumbbell Fly
A horizontal adduction movement that isolates the chest through a deep stretch and a fixed soft-elbow arc.
ChestDumbbellHorizontal adduction
GoLightWeight mediadumbbell-fly
시범 영상 준비 중
Primary
Pectoralis major
Secondary
Anterior deltoidsBiceps brachii (short head, stabilizer)Serratus anterior
Equipment
Dumbbell
Pattern
Horizontal adduction
Setup
- 01Sit with dumbbells on the thighs before lying back on a flat bench.
- 02Press the dumbbells up so they meet over the chest with palms facing each other.
- 03Set a slight, fixed bend in the elbows.
- 04Pull the shoulder blades down and back into the bench.
Execution
- 01Open the arms wide in a smooth arc, keeping the elbow angle fixed.
- 02Lower until a strong stretch is felt across the chest at about chest level.
- 03Stop before the shoulders roll forward or the stretch turns into pain.
- 04Squeeze the chest to bring the dumbbells back together over the chest.
Checkpoints
- -The elbow bend stays constant throughout the rep.
- -The motion is a wide arc, not a press.
- -The stretch is felt in the chest, not the front of the shoulder.
- -Shoulder blades stay pinned to the bench.
Common mistakes
- -Bending and straightening the elbows to turn it into a press.
- -Lowering too deep and overloading the shoulder joint.
- -Using weight that forces the arc to break down.
- -Letting the shoulders shrug up off the bench at the bottom.
Programming notes
- -Use 3 to 4 sets of 10 to 15 reps.
- -Keep the load moderate since the long lever stresses the shoulder.
- -Pair with a chest press for combined stretch and pressing volume.
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