Which muscles does the Dumbbell Standing One-Arm Extension work?

This exercise primarily targets the triceps, specifically the long head, by isolating elbow extension. While there are minimal secondary muscles engaged, your core and shoulders help stabilize the movement during the lift.

What equipment do I need for the Dumbbell Standing One-Arm Extension, and are there alternatives?

You only need a single dumbbell for this exercise. If you don’t have access to dumbbells, a kettlebell or a resistance band held overhead can be used as an alternative for similar triceps activation.

Is the Dumbbell Standing One-Arm Extension suitable for beginners?

Yes, beginners can safely perform this move with light weights to practice proper form and control. It’s important to focus on slow, controlled motions and avoid locking the elbow at the top to reduce strain.

What are common mistakes to avoid with the Dumbbell Standing One-Arm Extension?

Common errors include flaring the elbow away from the head, arching the lower back, and using momentum rather than muscle control. Keep your core engaged, elbow close to your ear, and perform each rep with steady movement.

How many sets and reps are recommended for the Dumbbell Standing One-Arm Extension?

For general strength and toning, aim for 3 sets of 10–12 reps per arm with moderate weight. If training for endurance, use lighter weight and perform higher reps, around 15–20 per arm.

Are there any safety tips for performing the Dumbbell Standing One-Arm Extension?

Ensure you maintain a neutral spine and avoid hyperextending your lower back. Start with a weight you can control throughout the full range of motion, and warm up your shoulders and elbows before performing the exercise.

What variations can I try for the Dumbbell Standing One-Arm Extension?

You can perform this exercise seated to reduce lower back strain, or use both arms simultaneously for the overhead dumbbell extension. Using a cable machine provides constant tension and can be a great alternative to free weights.

Dumbbell Standing One-Arm Extension

Target Muscles

Primary:

Triceps

Equipment Required

Dumbbell

Exercise Type

Weight & Reps

How To Do

Stand upright holding a dumbbell in one hand, arm fully extended overhead with your elbow close to your ear. Slowly lower the dumbbell behind your head by bending your elbow, then press it back up to the starting position, keeping your upper arm stationary. Engage your core and avoid letting your elbow flare outward.

Step-by-Step Instructions

Stand upright with your feet shoulder-width apart, holding a dumbbell in one hand. Keep your back straight and core engaged.
Raise the dumbbell overhead, fully extending your arm. Your palm should face forward, and your elbow should be close to your ear.
Slowly lower the dumbbell behind your head by bending your elbow. Keep your upper arm stationary and avoid flaring your elbow outward.
Once the dumbbell is lowered to the back of your head, pause briefly.
Push the dumbbell back up to the starting position by straightening your arm. Focus on contracting your triceps during this movement.
Repeat for the desired number of repetitions, then switch arms and repeat the exercise on the other side.

Explore more triceps exercises or dumbbell exercises in our exercise library.

Alternative Exercises

Dumbbell Standing Triceps Extension

Triceps

Dumbbell

Dumbbell One-Arm Kickback

Triceps

Dumbbell

Barbell Standing Overhead Triceps Extension

Triceps

Barbell

EZ-Bar Standing French Press

Triceps

EZ Bar

Frequently Asked Questions

Which muscles does the Dumbbell Standing One-Arm Extension work?: This exercise primarily targets the triceps, specifically the long head, by isolating elbow extension. While there are minimal secondary muscles engaged, your core and shoulders help stabilize the movement during the lift.
What equipment do I need for the Dumbbell Standing One-Arm Extension, and are there alternatives?: You only need a single dumbbell for this exercise. If you don’t have access to dumbbells, a kettlebell or a resistance band held overhead can be used as an alternative for similar triceps activation.
Is the Dumbbell Standing One-Arm Extension suitable for beginners?: Yes, beginners can safely perform this move with light weights to practice proper form and control. It’s important to focus on slow, controlled motions and avoid locking the elbow at the top to reduce strain.
What are common mistakes to avoid with the Dumbbell Standing One-Arm Extension?: Common errors include flaring the elbow away from the head, arching the lower back, and using momentum rather than muscle control. Keep your core engaged, elbow close to your ear, and perform each rep with steady movement.
How many sets and reps are recommended for the Dumbbell Standing One-Arm Extension?: For general strength and toning, aim for 3 sets of 10–12 reps per arm with moderate weight. If training for endurance, use lighter weight and perform higher reps, around 15–20 per arm.
Are there any safety tips for performing the Dumbbell Standing One-Arm Extension?: Ensure you maintain a neutral spine and avoid hyperextending your lower back. Start with a weight you can control throughout the full range of motion, and warm up your shoulders and elbows before performing the exercise.
What variations can I try for the Dumbbell Standing One-Arm Extension?: You can perform this exercise seated to reduce lower back strain, or use both arms simultaneously for the overhead dumbbell extension. Using a cable machine provides constant tension and can be a great alternative to free weights.