Dumbbell Incline Fly

Definition

The dumbbell incline fly is an isolation exercise performed on an incline bench (30-45 degrees) where the athlete opens the arms in a wide arc, then squeezes the dumbbells back together above the upper chest. The incline angle targets the clavicular (upper) fibers of the pectoralis major, building the chest flexibility and endurance that support overhead movements in HYROX^®.

Technique & Form

1. Starting position - Lie on an incline bench set at 30-45 degrees. Hold dumbbells above the upper chest with arms extended and a slight bend in the elbows. Palms face each other.
2. Lowering phase - Open the arms in a wide arc until the upper arms are level with the torso. Maintain the elbow bend throughout.
3. Squeezing phase - Squeeze the chest to bring the dumbbells back together above the upper chest.
4. Breathing - Inhale as you open; exhale as you squeeze.
5. Tempo - 3 seconds down, 1 second up, with a 1-second squeeze at the top.

Muscles Worked

• Primary movers: Upper pectoralis major (clavicular fibers)
• Stabilizers: Anterior deltoid, biceps brachii, serratus anterior

Common Mistakes

• Going too heavy - Excessive load compromises the stretch position and strains the shoulder. Fix: use light to moderate weight (5-12 kg per dumbbell).
• Straightening the elbows - Turns it into a pressing motion. Fix: maintain a fixed elbow bend throughout.

Benefits

• Isolates the upper chest through a full stretch-to-contraction range of motion.
• Builds pectoral flexibility that supports overhead pressing and wall ball catches.
• Low joint stress compared to heavy pressing movements.

HYROX^® Context

The incline fly is a chest accessory that supports the Wall Balls station by building upper-chest endurance and shoulder-range-of-motion work. Use it after your primary pressing exercises - 3 sets of 12-15 reps. It pairs well with dumbbell incline bench press for complete upper-chest development.

Variations & Alternatives

• Dumbbell Fly - Flat bench version for overall chest isolation.
• Dumbbell Incline Bench Press - Compound pressing for heavier upper-chest loading.
• Dumbbell Pullover - Stretch-focused movement for chest and lats.

FAQ

When should I do incline flies in my workout? After your main compound pressing movements. They work best as a finisher for 2-3 sets of 12-15 reps.

How does the incline fly differ from the flat fly? The incline angle shifts emphasis to the upper chest fibers, while the flat fly targets the entire pectoralis more evenly. Use both for balanced development.

Track your chest accessory work and pressing volume with ROXBASE.