Exercise guide
Dumbbell One Arm Seated Neutral Wrist Curl
- Intermediate
- Isolation
- Rep-based
- Lower arms
- Upper arms
This isolation exercise targets the brachioradialis and forearm extensors using a neutral (hammer) grip to build grip strength and forearm thickness. Performing it unilaterally allows for focused muscle activation and helps correct strength imbalances between arms.
Reviewed by the Crucible Fit team · Updated June 2026
Muscles worked
Setup
- Sit on the side of a flat bench with your feet firmly planted on the floor for stability.
- Grasp a dumbbell in one hand using a neutral grip (palm facing inward toward your body).
- Rest your forearm on your thigh or the edge of the bench so your wrist hangs just off the edge, supported by your arm.
How to do it
- Exhale as you curl the dumbbell upward by flexing only at the wrist, keeping your forearm pressed firmly against your support.
- Squeeze the forearm muscles at the peak of the movement for one second.
- Inhale as you slowly lower the weight back to the starting position with a controlled 2-second tempo.
- Complete the desired number of repetitions on one arm before switching to the other.
Form checklist
- Keep the forearm stationary; do not let the elbow lift off your leg or the bench.
- Maintain a strictly neutral grip throughout the entire range of motion.
- Avoid using body momentum or 'swinging' the weight up.
- Ensure the movement is isolated to the wrist joint only.
Pro tips
- Focus on pulling your thumb toward your upper forearm to maximize the engagement of the brachioradialis.
- Maintain a firm grip on the dumbbell to increase irradiation and muscle fiber recruitment throughout the forearm.
Make it harder
- Slow down the eccentric (lowering) phase to 4 seconds to increase time under tension.
- Use a thick-grip implement or wrap a towel around the dumbbell handle to further challenge your grip strength.
Frequently asked
- What muscles does the dumbbell one arm seated neutral wrist curl work?
- The dumbbell one arm seated neutral wrist curl primarily targets the forearms, and also works the biceps as secondary muscles.
- What equipment do you need for the dumbbell one arm seated neutral wrist curl?
- The dumbbell one arm seated neutral wrist curl uses dumbbell.
- Is the dumbbell one arm seated neutral wrist curl good for beginners?
- The dumbbell one arm seated neutral wrist curl is rated intermediate. Build a base with simpler variations first, then progress to it with light load and strict form.