Quick Answer
Fly is a beginner strength exercise that targets your chest. It uses a dumbbell. Lie flat on bench, feet on floor. Hold dumbbell each hand.
Video Tutorial
How to Perform the Fly
- 1
Lie flat on bench, feet on floor. Hold dumbbell each hand.
- 2
Extend arms above chest, slight elbow bend, palms facing each other.
- 3
Inhale, slowly lower dumbbells out to sides in wide arc.
- 4
Maintain slight elbow bend. Feel chest stretch.
- 5
Exhale, bring dumbbells back up in same arc, squeezing chest.
- 6
Repeat.
Common Mistakes to Avoid
- !Rushing reps instead of controlling the lowering (eccentric) phase — aim for 2–3 seconds down.
- !Letting form break down as reps add up. Stop the set when technique slips, not when you physically can't do another rep.
- !Flaring elbows to 90° from the torso. Keep elbows at 30–45° to protect the shoulder joint.
Tips for Better Form
- ✓Breathe out during the effort (concentric) and breathe in on the return (eccentric).
- ✓Use a mirror or film yourself on your first session — your perceived form and actual form often differ.
- ✓Brace your core as if someone were about to punch you in the stomach. This stabilizes your spine in every rep.
- ✓Don't worry about load — master the movement pattern with light weight or easier variations first.
Alternative Exercises
If the Fly isn't right for your body, equipment, or goal, try these similar exercises that hit the same muscle groups:
Frequently Asked Questions
What muscles does the Fly work?
The Fly primarily works your chest. Secondary muscles include the shoulders and biceps.
What equipment do I need for the Fly?
The Fly needs a dumbbell. You can perform it at home or at the gym as long as you have what's listed.
Is the Fly suitable for beginners?
Yes. The Fly is a beginner-level exercise. Start with lighter load or fewer reps and focus on form before adding intensity.
How many sets and reps of Fly should I do?
For strength: 3–5 sets of 3–6 reps with longer rest (2–3 min). For hypertrophy (muscle growth): 3–4 sets of 8–12 reps with moderate rest (60–90 sec). For endurance: 2–3 sets of 15+ reps with short rest (30–45 sec). Adjust based on your program and goal.
Can I do the Fly every day?
No. Muscles need 48 hours to recover between heavy training sessions. If you want to train chest more frequently, alternate harder and easier variations and keep overall weekly volume moderate.