One-Arm Flat Bench Dumbbell Flye

Learn how to do one-arm flat bench dumbbell flye with a clear setup, controlled movement, and a technique you can repeat.

ChestDumbbell6 technique steps

See the movement
One-Arm Flat Bench Dumbbell Flye: matching illustrations comparing the setup and movement positions
01Set your position02Make the movement

How to do one-arm flat bench dumbbell flye

  1. Lie down on a flat bench with a dumbbell in one hand resting on top of your thigh. The palm of your hand with the dumbbell in it should be at a neutral grip.
  2. By using your thighs to help you get the dumbbell up, clean the dumbbell so that you can hold it in front of you with your lifting arm being fully extended. Remember to maintain a neutral grip with this exercise. Your non lifting hand should be to the side holding the flat bench for better support. This will be your starting position.
  3. Your arm with the weight should have a slight bend on your elbow in order to prevent stress at the biceps tendon. Begin by lowering your arm with the weight in it out 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, your lifting arm should remain stationary; the movement should only occur at the shoulder joint.
  4. Return your lifting arm 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. Hold for a second at the contracted position and repeat the movement for the prescribed amount of repetitions.
  6. Switch arms and repeat the exercise.
One-Arm Flat Bench Dumbbell Flye exercise illustration

One-Arm Flat Bench Dumbbell Flye: muscles worked

Primary focus: chest.

Better reps before more weight.

Start with a version you can control. Record the same setup and range each time. Add reps or a small load increase when you can repeat the movement without changing the technique.

Plan your next set

Frequently asked questions

How do you do one-arm flat bench dumbbell flye?

Lie down on a flat bench with a dumbbell in one hand resting on top of your thigh. The palm of your hand with the dumbbell in it should be at a neutral grip. By using your thighs to help you get the dumbbell up, clean the dumbbell so that you can hold it in front of you with your lifting arm being fully extended. Remember to maintain a neutral grip with this exercise. Your non lifting hand should be to the side holding the flat bench for better support. This will be your starting position. Your arm with the weight should have a slight bend on your elbow in order to prevent stress at the biceps tendon. Begin by lowering your arm with the weight in it out 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, your lifting arm should remain stationary; the movement should only occur at the shoulder joint.

What muscles does one-arm flat bench dumbbell flye work?

One-Arm Flat Bench Dumbbell Flye primarily trains the chest. The exact demand depends on your setup, range, and chosen load.

What is the best technique for one-arm flat bench dumbbell flye?

Choose a manageable load and set your shoulder position before moving. Move through a comfortable arc with a steady torso and controlled elbows. Keep the same range each rep; avoid swinging or shrugging to move extra weight.

What can I do instead of one-arm flat bench dumbbell flye?

Related options include Decline Dumbbell Bench Press, Dumbbell Bench Press, Dumbbell Bench Press with Neutral Grip. These can have different equipment, range, and movement demands. Open the guides below to compare the setups before choosing a replacement.

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