dumbbell one arm bench fly

A chest exercise targeting the pectorals, performed with dumbbell.

dumbbell one arm bench fly demonstration
dumbbell one arm bench fly β€” demonstration

Body part

Chest

Equipment

Dumbbell

Target muscles

Pectorals

Secondary muscles

Shoulders

How to do dumbbell one arm bench fly

  1. Sit on a flat bench with a dumbbell in one hand, resting it on top of your thigh.

  2. Lie back on the bench, keeping the dumbbell pressed against your thigh.

  3. Using your free hand, help lift the dumbbell up to the starting position.

  4. Hold the dumbbell directly above your shoulder with your arm extended and palm facing inward.

  5. Lower the dumbbell out to the side in a wide arc, keeping a slight bend in your elbow.

  6. Pause when your arm is parallel to the ground, then reverse the movement and bring the dumbbell back to the starting position.

  7. Repeat for the desired number of repetitions, then switch arms and repeat.

Muscles worked

Primary (target)

Pectorals

Secondary

Shoulders

Related exercises

All chest exercises β†’

Track dumbbell one arm bench fly in NutriMind

Log your sets and the app does the rest β€” automatic PR detection, progression charts for every lift, and progressive overload that adjusts your next workout. Paired with AI nutrition coaching so your training and your plate pull in the same direction.

Planning your next heavy session? Estimate your max with the One Rep Max Calculator and build up to it with the Warm-up Calculator. More free tools β†’