Incline Alternating Dumbbell Fly
In SetGrip: Dumbbell Fly (Incline, Alternating)
Alternating arms on the incline bench means one dumbbell stays extended over your chest while the other travels, so each pec spends half the set holding an isometric while the opposite side works through the arc. It slows the set down and halves the moving load, which is exactly why it suits lifters still learning the fly pattern.
How to do the Incline Alternating Dumbbell Fly
- Set up an incline bench at a 45-degree angle.
- Sit on the bench with your back against the pad and feet flat on the ground.
- Hold a dumbbell in each hand with an overhand grip, palms facing forward.
- Start with your arms fully extended, perpendicular to the ground.
- Lower the dumbbells slowly to the sides of your chest, keeping your elbows at a 90-degree angle.
- Pause for a moment at the bottom, then push the dumbbells back up to the starting position.
- Repeat for the desired number of repetitions.
Tip: Imagine hugging a barrel rather than pushing a weight.
Muscles worked
Primary
Pectorals · Chest
On chest flies and cable crossovers the pecs pull the arms together in an arc and should feel a deep stretch at the bottom and a hard squeeze at the top.
Common mistakes
- Elbows bending as you tire — this turns a fly into a press; set the elbow angle at the start and keep it constant for the whole set.
- Going too heavy — flies are a stretch and squeeze movement, not a strength lift; you should be able to pause at the bottom without the shoulders rolling forward.
- Stopping short of the stretch — let the arms open until you feel the chest or rear delts lengthen, then bring them back under control.
- Not squeezing at the finish — the last few inches are where the muscle shortens most, so hold the contraction for a count before opening again.
Where it fits in a workout
Flies are an isolation movement for after the pressing or rowing is done. Pair a chest fly with a rear delt fly for a balanced superset.
How many sets, how heavy and how hard: see what the ACSM position stands support.
Variations and alternatives
When to talk to someone
- Chest discomfort, feeling faint or lightheaded, or trouble breathing during or after exercise can be signs of a heart attack. In the US, call 911 right away; elsewhere, call your local emergency number.
- Heart, metabolic or kidney disease, or symptoms like these when you are active: talk to your doctor before you start or step up training.
- Pregnant: ask your obstetric care provider which exercise suits you.
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Sources
- ACSM position stand on exercise quantity and quality (Garber et al., 2011)
- ACSM preparticipation health screening (Riebe et al., 2015)
- ACOG Committee Opinion No. 804 on exercise in pregnancy (2020)
- CDC: About Heart Attack Symptoms, Risk, and Recovery (2024)
Sources checked on October 17, 2026. Full citations are in the exercise library.
Animation and exercise data: ExerciseDB, licensed to SetGrip. General information, not medical or coaching advice.