PT
Exercises / strength

DB Fly

Chest isolation exercise with a deep stretch at the bottom that targets the inner chest fibres. Builds chest width and a full, rounded look to the pecs.

Difficulty

beginner

Category

strength

Primary Muscles

Chest

Equipment

Dumbbells, Bench

How to Perform

  1. Lie on a flat bench with dumbbells above your chest, palms facing each other
  2. With a slight bend in your elbows, lower the weights out to the sides in a wide arc
  3. Lower until you feel a deep stretch across your chest
  4. Bring the weights back up in a hugging motion, squeezing your pecs at the top

Tips

  • Lock a slight bend in your elbows and keep that angle fixed — changing it turns this into a press
  • No dumbbells? Cable flys provide constant tension and are even better for chest isolation
  • Use a slow 3 second descent to maximise the stretch — this is where the muscle-building stimulus happens
  • Going too heavy is the biggest beginner mistake — you should feel a stretch, not shoulder pain
  • Focus on squeezing your chest fibres together at the top as if you are hugging a tree trunk

Essential Equipment

EquipmentWhy You Need ItOur PickReview
Adjustable DumbbellsLighter weights needed for isolation — adjustable saves spacePowerblock EliteRead Review
Weight BenchFlat bench essential for chest flysFlybird Adjustable BenchRead Review

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