Exercise guide
Dumbbell Alternate Hammer Strict Curl
- Intermediate
- Isolation
- Rep-based
- Shoulders
- Upper arms
This variation targets the brachialis and brachioradialis while using a wall to eliminate momentum, ensuring maximum tension on the elbow flexors. It is highly effective for building forearm thickness and bicep peak by isolating the muscles through a strict range of motion.
Reviewed by the Crucible team · Updated June 2026
Muscles worked
Setup
- Stand with your upper back, glutes, and head 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 to maintain balance while keeping your torso vertically flush against the surface.
- Let your arms hang fully extended at your sides with elbows tucked in.
How to do it
- Exhale and curl one dumbbell toward your shoulder while keeping the palm facing inward and the elbow pinned against the wall.
- Squeeze the bicep and forearm at the peak of the contraction for one second.
- Inhale and slowly lower the weight back to the starting position using a controlled 3-second tempo.
- Perform the same movement with the opposite arm, alternating sides until the set is complete.
Form checklist
- Keep your shoulders, back, and glutes in contact with the wall at all times.
- Ensure the elbow does not drift forward; it should remain 'pinned' to your side.
- Maintain a neutral wrist throughout the movement; do not let the weight pull your wrist into extension.
- Avoid using your legs or hips to 'kick' the weight up.
Pro tips
- Focus on the 'mind-muscle connection' by visualizing the muscle on the outside of your arm doing the work.
- Squeeze the dumbbell handle as hard as possible to increase neural drive and forearm activation.
- Keep your non-working arm fully locked out and tensed to help maintain total body stability.
Make it harder
- Add a 2-second isometric hold at the 90-degree mark during the lowering phase.
- Perform all reps on one side before switching to the other to increase the time under tension for each limb.
Frequently asked
- What muscles does the dumbbell alternate hammer strict curl work?
- The dumbbell alternate hammer strict curl primarily targets the biceps, and also works the forearms as secondary muscles.
- What equipment do you need for the dumbbell alternate hammer strict curl?
- The dumbbell alternate hammer strict curl uses dumbbell.
- Is the dumbbell alternate hammer strict curl good for beginners?
- The dumbbell alternate hammer strict curl is rated intermediate. Build a base with simpler variations first, then progress to it with light load and strict form.