What muscles does the Dumbbell One-Arm Seated Hammer Curl work?

This exercise primarily targets the biceps, with a strong emphasis on the brachialis muscle, and also engages the forearm muscles for gripping and wrist stability. The neutral wrist position works the biceps in a slightly different angle than traditional curls, improving overall arm strength.

What equipment do I need for the Dumbbell One-Arm Seated Hammer Curl?

You will need a dumbbell and a sturdy bench for proper support. If you don’t have a bench, you can perform the movement seated on a chair with a straight back or even standing, though sitting helps minimize body sway.

Is the Dumbbell One-Arm Seated Hammer Curl suitable for beginners?

Yes, it’s beginner-friendly as long as you use a manageable weight and focus on controlled movement. Beginners should start with lighter dumbbells to master proper form before increasing resistance.

What are common mistakes to avoid with Dumbbell One-Arm Seated Hammer Curls?

Avoid swinging your arm or using momentum, as this reduces muscle engagement. Keep your elbow locked in place, maintain a straight back, and fully control the dumbbell throughout the movement to prevent strain.

How many sets and reps should I do for Dumbbell One-Arm Seated Hammer Curls?

For strength and muscle growth, aim for 3–4 sets of 8–12 reps per arm. For endurance or toning, 2–3 sets of 12–15 reps with lighter weight work well.

Are there any safety tips for performing Dumbbell One-Arm Seated Hammer Curls?

Always choose a weight you can lift without compromising form, and sit with your feet firmly planted for stability. Avoid locking your joints rigidly, and move in a slow, controlled manner to reduce the risk of injury.

What variations can I try for Dumbbell One-Arm Seated Hammer Curls?

You can perform the exercise standing for greater core engagement or use a cable machine for constant tension. Alternating arms or performing cross-body hammer curls can also target your biceps and forearms differently.

Dumbbell One-Arm Seated Hammer Curl

Target Muscles

Primary:

Biceps

Secondary:

Forearm

Equipment Required

Bench

Dumbbell

Exercise Type

Weight & Reps

How To Do

Sit upright on a bench with your back straight, holding a dumbbell at your side in one hand with your palm facing your torso. Keeping your upper arm still, curl the dumbbell toward your shoulder by bending your elbow, then lower it back down slowly. Maintain a neutral wrist position and keep your elbow close to your body throughout the movement.

Step-by-Step Instructions

Sit on a bench with a backrest, keeping your back straight and feet flat on the floor. Hold a dumbbell in one hand with a neutral grip (palm facing your torso). Let your arm hang down naturally at your side.
Keep your upper arm stationary and close to your torso throughout the movement. Slowly curl the dumbbell upward by bending your elbow, keeping your wrist in a neutral position.
Continue lifting the dumbbell until your forearm is vertical and the dumbbell is near shoulder height. Squeeze your biceps at the top of the movement.
Slowly lower the dumbbell back to the starting position in a controlled manner.
Repeat for the desired number of repetitions, then switch to the other arm and repeat the exercise.

Explore more biceps exercises or bench exercises in our exercise library.

Alternative Exercises

Dumbbell Alternate Seated Hammer Curl

Biceps

Bench • Dumbbell

Dumbbell Preacher Hammer Curl

Biceps

Bench • Dumbbell

Olympic Barbell Hammer Curl

Biceps

Barbell

EZ Barbell Curl

Biceps

EZ Bar

Frequently Asked Questions

What muscles does the Dumbbell One-Arm Seated Hammer Curl work?: This exercise primarily targets the biceps, with a strong emphasis on the brachialis muscle, and also engages the forearm muscles for gripping and wrist stability. The neutral wrist position works the biceps in a slightly different angle than traditional curls, improving overall arm strength.
What equipment do I need for the Dumbbell One-Arm Seated Hammer Curl?: You will need a dumbbell and a sturdy bench for proper support. If you don’t have a bench, you can perform the movement seated on a chair with a straight back or even standing, though sitting helps minimize body sway.
Is the Dumbbell One-Arm Seated Hammer Curl suitable for beginners?: Yes, it’s beginner-friendly as long as you use a manageable weight and focus on controlled movement. Beginners should start with lighter dumbbells to master proper form before increasing resistance.
What are common mistakes to avoid with Dumbbell One-Arm Seated Hammer Curls?: Avoid swinging your arm or using momentum, as this reduces muscle engagement. Keep your elbow locked in place, maintain a straight back, and fully control the dumbbell throughout the movement to prevent strain.
How many sets and reps should I do for Dumbbell One-Arm Seated Hammer Curls?: For strength and muscle growth, aim for 3–4 sets of 8–12 reps per arm. For endurance or toning, 2–3 sets of 12–15 reps with lighter weight work well.
Are there any safety tips for performing Dumbbell One-Arm Seated Hammer Curls?: Always choose a weight you can lift without compromising form, and sit with your feet firmly planted for stability. Avoid locking your joints rigidly, and move in a slow, controlled manner to reduce the risk of injury.
What variations can I try for Dumbbell One-Arm Seated Hammer Curls?: You can perform the exercise standing for greater core engagement or use a cable machine for constant tension. Alternating arms or performing cross-body hammer curls can also target your biceps and forearms differently.