maratoolStanding One-Arm Dumbbell Triceps Extension
How to do the standing one-arm dumbbell triceps extension
- To begin, stand up with a dumbbell held in one hand. Your feet should be about shoulder width apart from each other. Now fully extend the arm with the dumbbell over your head. Tip: The small finger of your hand should be facing the ceiling and the palm of your hand should be facing forward. The dumbbell should be above your head.
- This will be your starting position.
- Keeping your upper arm close to your head (elbows in) and perpendicular to the floor, lower the resistance in a semicircular motion behind your head until your forearm touch your bicep. Tip: The upper arm should remain stationary and only the forearm should move. Breathe in as you perform this step.
- Go back to the starting position by using the triceps to raise the dumbbell. Breathe out as you perform this step.
- Repeat for the recommended amount of repetitions.
- Switch arms and repeat the exercise.
Muscles worked
The prime mover is the triceps brachii, which straightens the elbow, and through its long head helps pull the arm back at the shoulder.
Even with a single joint doing the moving, the muscle is not working alone — the chest adds pushing force at the shoulder; the deltoids stabilise the shoulder and add force at the top of the range.
How this movement works
One joint moves, and it moves the load away from the body. With nothing recruited to assist, the target muscle reaches its own limit rather than the limit of the weakest link in a chain — which makes this useful for adding volume after the heavy compound work, not for opening a session.
It is filed under strength: produce force against resistance for a countable number of repetitions, and progress the resistance over time.
What you need
Dumbbells let each side work on its own, surfacing a strength difference between limbs that a barbell would quietly cover for, and leaving the wrist free to rotate through the movement.
Every exercise using:Dumbbell
These train the triceps too, using equipment this one does not:
- Standing Overhead Triceps Extension with Barbellbarbell
- Standing Triceps Extension with Towelbody only
- Supine Chest Throwmedicine ball
- Tricep Dips using Machinemachine
- Triceps Overhead Extension with Ropecable
Difficulty
Listed at beginner level: the pattern is simple enough to pick up without coaching, and a position that goes wrong mid-set is obvious enough to correct on the next repetition.
Of the 99 triceps exercises in this database, 44 are listed at beginner level.
Photos: free-exercise-db — public domain (Unlicense) Full attribution →
ⓘ Informational only — not a substitute for professional fitness or medical advice.