Home › Exercises › Decline Dumbbell Flyes

Decline Dumbbell Flyes

Performed on a decline bench to bias the lower portion of the muscle, this variation primarily targets your Chest. It requires dumbbell and is best suited to beginner lifters.

Beginner level · Equipment: Dumbbell · Compound · Push

Primary muscles: Chest

How to perform Decline Dumbbell Flyes

  1. Step 1. Secure your legs at the end of the decline bench and lie down with a dumbbell on each hand on top of your thighs. The palms of your hand will be facing each other.
  2. Step 2. Once you are laying down, move the dumbbells in front of you at shoulder width. The palms of the hands should be facing each other and the arms should be perpendicular to the floor and fully extended. This will be your starting position.
  3. Step 3. With a slight bend on your elbows in order to prevent stress at the biceps tendon, lower your arms out at both sides in a wide arc until you feel a stretch on your chest. Breathe in as you perform this portion of the movement. Tip: Keep in mind that throughout the movement, the arms should remain stationary; the movement should only occur at the shoulder joint.
  4. Step 4. Return your arms back to the starting position as you squeeze your chest muscles and breathe out. Tip: Make sure to use the same arc of motion used to lower the weights.
  5. Step 5. Hold for a second at the contracted position and repeat the movement for the prescribed amount of repetitions.

Frequently asked questions

Which specific muscles do decline dumbbell flyes target?

This exercise primarily targets the lower fibers of the pectoralis major. The decline angle shifts the mechanical tension away from the shoulders and onto the inferior portion of the chest.

What is the ideal range of motion for this movement?

Lower the weights until you feel a comfortable stretch in the chest, keeping a slight bend in the elbows. Avoid overextending past the torso line to prevent excessive shoulder joint strain.

What are common mistakes to avoid during decline flyes?

The most frequent errors include turning the movement into a press by bending the elbows too much and clashing the dumbbells at the top. Maintain a consistent arc throughout the entire set.

How should beginners approach this exercise safely?

Start with light dumbbells to master the stability required on a decline bench. If the angle feels unstable, perform flat bench flyes first to build the necessary mind-muscle connection.

How should I program decline dumbbell flyes into my routine?

Perform 2-3 sets of 10-15 repetitions as an isolation finisher after heavy pressing movements. Focus on a slow eccentric phase and a strong contraction rather than using maximum weight.

Sample sets & reps for Decline Dumbbell Flyes

  • Form first: 3 sets × 10-12 reps, 60s rest. RPE 6, focus on the target muscle.
  • Hypertrophy: 3 sets × 12-15 reps, 45-60s rest. RPE 7-8, controlled eccentric.
  • Burnout finisher: 2 sets × 15-20 reps, 45s rest. RPE 9, last set to failure.

Pick the scheme that matches your goal. Beginners should start at the lower end of every range; progress weight only when you hit the upper end of the rep range with one or two reps in reserve.

Related Chest exercises

  • Alternating Floor Press — kettlebell
  • Barbell Bench Press - Medium Grip — barbell
  • Barbell Guillotine Bench Press — barbell
  • Barbell Incline Bench Press - Medium Grip — barbell
  • Behind Head Chest Stretch — stretch

See all Chest exercises →

Want a workout that includes Decline Dumbbell Flyes and 870+ other exercises? Try the AI Planner — 2 weeks free