Arms
The main area this variation is designed to train.
Exercise guide
One Arm Supinated Dumbbell Triceps Extension
Learn how to do the One Arm Supinated Dumbbell Triceps Extension 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.
Arms
Secondary support can come from other nearby stabilizers depending on how you perform the movement.
Strength
Movement pattern: extension. 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 Supinated Dumbbell Triceps Extension
Keep the setup simple, use a controlled pace, and repeat the same movement pattern each rep.
- Lie flat on a bench while holding a dumbbell at arms length. Your arm should be perpendicular to your body. The palm of your hand should be facing towards your face as a supinated grip is required to perform this exercise.
- Place your non lifting hand on your bicep for support.
- Slowly begin to lower the dumbbell down as you breathe in.
- Then, begin lifting the dumbbell upward as you contract the triceps. Remember to breathe out during the concentric (lifting part of the exercise).
- Repeat until you have performed your set repetitions.
- Switch arms and repeat the movement.
- Switch arms again and repeat the movement.
Benefits
- Builds strength and control through the arms 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 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 workoutArm Workout
A focused arm session with direct biceps and triceps volume you can recover from.
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.
Alternate Hammer Curl
Alternate Hammer Curl is a beginner strength that mainly trains your arms using dumbbell.
View exerciseAlternate Incline Dumbbell Curl
Alternate Incline Dumbbell Curl is a beginner strength that mainly trains your arms using dumbbell.
View exerciseClose-Grip Dumbbell Press
Close-Grip Dumbbell Press is a beginner strength that mainly trains your arms using dumbbell.
View exerciseConcentration Curls
Concentration Curls is a beginner strength that mainly trains your arms using dumbbell.
View exerciseFAQ
Common questions about One Arm Supinated Dumbbell Triceps Extension.
Use these answers as a practical starting point, then adjust based on your setup, comfort, and goals.
What muscles does One Arm Supinated Dumbbell Triceps Extension work?
One Arm Supinated Dumbbell Triceps Extension mainly works the arms. It can also involve supporting muscles around the same region depending on your setup and range of motion.
Is One Arm Supinated Dumbbell Triceps Extension 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 Supinated Dumbbell Triceps Extension?
You will usually need Dumbbell for this variation.
How should I progress One Arm Supinated Dumbbell Triceps Extension?
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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