Exercise guide
Dumbbell Hammer Strict Curl
- Intermediate
- Isolation
- Rep-based
- Lower arms
- Upper arms
This variation uses a wall to eliminate momentum, isolating the brachialis and brachioradialis for superior forearm and outer bicep development. By maintaining a neutral grip and fixed posture, you maximize tension on the elbow flexors while ensuring perfect technical execution.
Reviewed by the Crucible Fit team · Updated June 2026
Muscles worked
Setup
- Stand with your upper back, glutes, and elbows pressed firmly against a flat wall.
- Hold a dumbbell in each hand with a neutral grip, palms facing your torso.
- Position your feet 6-12 inches away from the wall with a slight bend in the knees for better stability.
- Allow your arms to hang fully extended with the back of your triceps touching the wall.
How to do it
- Exhale and curl the weights toward your shoulders while keeping your elbows and upper back pinned against the wall.
- Maintain the neutral 'hammer' grip throughout the entire movement without rotating your wrists.
- Squeeze your biceps and forearms hard at the top of the movement for a one-second peak contraction.
- Inhale and slowly lower the dumbbells back to the starting position using a controlled 3-second eccentric tempo.
Form checklist
- Keep your elbows in constant contact with the wall to prevent shoulder involvement.
- Maintain a neutral wrist position; do not let the weight pull your wrists into extension.
- Ensure your head and shoulder blades remain glued to the wall to eliminate swinging.
- Keep your core braced to prevent your lower back from arching away from the wall.
Pro tips
- Squeeze the dumbbell handles as hard as possible to increase muscle fiber recruitment through irradiation.
- Focus on driving your thumbs toward your shoulders to maximize the engagement of the brachioradialis.
Make it harder
- Perform the movement with a 5-second eccentric (lowering) phase to increase time under tension.
- Add a 2-second isometric pause at the 90-degree 'sticking point' of the curl.
Frequently asked
- What muscles does the dumbbell hammer strict curl work?
- The dumbbell hammer strict curl primarily targets the biceps, and also works the forearms as secondary muscles.
- What equipment do you need for the dumbbell hammer strict curl?
- The dumbbell hammer strict curl uses dumbbell.
- Is the dumbbell hammer strict curl good for beginners?
- The dumbbell hammer strict curl is rated intermediate. Build a base with simpler variations first, then progress to it with light load and strict form.