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Flat Bench Dumbbell Fly

The Flat Bench Dumbbell Fly is a dumbbell exercise that primarily targets the chest. It is a staple in well-designed hypertrophy and strength programs when programmed with proper volume and progressive overload.

How to perform the Flat Bench Dumbbell Fly

  1. 1Lie back on a flat bench with a dumbbell in each hand, feet flat on the floor, and arms straight above your chest with palms facing each other and a soft bend in your elbows. Squeeze your shoulder blades gently into the bench and keep your wrists straight so the weights sit comfortably over your chest, not your face.
  2. 2Lower the dumbbells out to the sides in a wide arc, keeping the same slight bend in your elbows, until you feel a good stretch across your chest but no shoulder pain, inhaling as you go down for about 2–3 seconds. Exhale as you smoothly bring the dumbbells back together over your chest in the same arc in about 1–2 seconds, focusing on squeezing your chest rather than locking out your elbows or banging the weights together.

Coach tips

  • Keep the movement controlled and stop the stretch before your shoulders feel strained; this is a chest exercise, not a flexibility test.
  • Think about hugging a big tree: elbows slightly bent and fixed, so your arms move like a wide arc instead of turning it into a press.
  • Keep your lower back lightly pressed into the bench and your core braced so you’re not arching and using momentum to swing the weights.
Powered by Hypro

Train chest smarter

One rep, one set. Hypro turns the Flat Bench Dumbbell Fly into measurable progress, week after week.

Smart Progression

The right weight, every set

Hypro suggests your next Flat Bench Dumbbell Fly weight and reps based on what you actually lifted, your rest, and your fatigue. Choose weight-first or reps-first. The more you log, the sharper it gets.

Smart Progression screen suggesting weight and reps for the next set
Weekly Volume

See exactly how much chest you train each week

Every set you log counts toward weekly volume per muscle group. Spot imbalances, avoid junk volume, and program the same way IFBB Pros do.

Body heatmap showing weekly training volume per muscle group
Coach-Built Plans

Use this exercise inside an IFBB Pro plan

Pick a coach-made program, get a plan matched to your goals, and message your coach for form checks. The Flat Bench Dumbbell Fly fits right into proven hypertrophy and strength templates.

Library of coach-built training plans inside Hypro

Frequently asked questions

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