Chest
The main area this variation is designed to train.
Exercise guide
One-Arm Flat Bench Dumbbell Flye
Learn how to do the One-Arm Flat Bench Dumbbell Flye exercise, which muscles it works, the equipment you need, and common mistakes to avoid.
Dumbbell
Use this to decide whether the movement fits your current setup.
Beginner
A quick checkpoint for how simple or technical the movement usually feels.
Chest
Secondary support can come from other nearby stabilizers depending on how you perform the movement.
Strength
Movement pattern: raise. This is more of an isolation-focused exercise.
Learning and repeating well
Use this page to understand the setup first, then track the movement consistently in Logbook once it fits your program.
Instructions
How to do One-Arm Flat Bench Dumbbell Flye
Keep the setup simple, use a controlled pace, and repeat the same movement pattern each rep.
- 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.
- 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.
- Hold for a second at the contracted position and repeat the movement for the prescribed amount of repetitions.
- Switch arms and repeat the exercise.
Benefits
- Builds strength and control through the chest region.
- Makes it easier to focus on one area when you want extra practice or volume.
- Gives you a repeatable way to track progress inside Logbook over time.
Common mistakes
- Using more weight or speed than you can control cleanly.
- Cutting the range of motion short and rushing through the reps.
- Changing your body position between reps instead of keeping the movement repeatable.
Related workouts
Workout templates that use this exercise.
If you want to see this movement inside a more complete training session, start here.
3-Day Full Body Split
A three-day split that spreads total weekly work across three full-body sessions.
View workout30-Minute Fat Loss Workout
A shorter full-body session designed to keep you moving and make consistency easier on busy days.
View workout4-Day Upper Lower Split
A simple four-day split that gives each half of the body two quality sessions each week.
View workout5-Day Bodybuilding Split
A traditional five-day bodybuilding split for lifters who enjoy focusing on one or two regions per session.
View workoutRelated exercises
More exercises in the same lane.
Use these when you want a similar movement pattern, a different setup, or more exercise options for the same target area.
Decline Dumbbell Bench Press
Decline Dumbbell Bench Press is a beginner strength that mainly trains your chest using dumbbell.
View exerciseDecline Dumbbell Flyes
Decline Dumbbell Flyes is a beginner strength that mainly trains your chest using dumbbell.
View exerciseDumbbell Bench Press
Dumbbell Bench Press is a beginner strength that mainly trains your chest using dumbbell.
View exerciseDumbbell Bench Press with Neutral Grip
Dumbbell Bench Press with Neutral Grip is a beginner strength that mainly trains your chest using dumbbell.
View exerciseFAQ
Common questions about One-Arm Flat Bench Dumbbell Flye.
Use these answers as a practical starting point, then adjust based on your setup, comfort, and goals.
What muscles does One-Arm Flat Bench Dumbbell Flye work?
One-Arm Flat Bench Dumbbell Flye mainly works the chest. It can also involve supporting muscles around the same region depending on your setup and range of motion.
Is One-Arm Flat Bench Dumbbell Flye beginner-friendly?
Yes. This exercise is listed as beginner-friendly, which usually means the setup and learning curve are more manageable.
What equipment do I need for One-Arm Flat Bench Dumbbell Flye?
You will usually need Dumbbell for this variation.
How should I progress One-Arm Flat Bench Dumbbell Flye?
Start by making the reps smoother and more repeatable. Once the whole set looks controlled, add a small amount of load or one extra rep at a time.
Track this exercise for free in Logbook.
Once the movement is in your plan, use Logbook to record sets, reps, load, and progress without guessing what happened last week.
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