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Exercise · Biceps

Hammer Curl guide

The Hammer Curl is a beginner-level isolation dumbbell exercise that primarily targets the Brachialis. Set up with a braced, stable base, move through a full range of motion under control, and progressively add weight or reps over time to keep getting stronger.

TargetBrachialis
SecondaryBiceps
EquipmentDumbbell
MechanicsIsolation
LevelBeginner

What muscles does the hammer curl work?

The Hammer Curl primarily trains the Brachialis, with the biceps as the target group. Train it as part of a balanced biceps routine.

How do you do the hammer curl?

To do the Hammer Curl: set up at the dumbbell with a stable, braced position — feet planted and core tight; take a grip or stance that lets your biceps drive the movement through its full range of motion; lower under control, then drive back to the start, keeping tension on the brachialis; avoid momentum, breathe through each rep, and stop 1–2 reps short of failure on most working sets.

  1. Set up at the dumbbell with a stable, braced position — feet planted and core tight.
  2. Take a grip or stance that lets your biceps drive the movement through its full range of motion.
  3. Lower under control, then drive back to the start, keeping tension on the brachialis.
  4. Avoid momentum, breathe through each rep, and stop 1–2 reps short of failure on most working sets.

What are the most common hammer curl mistakes?

  • Using momentum or bouncing instead of controlled tension.
  • Cutting the range of motion short to move more weight.
  • Adding load before the current weight is clean for every rep.

Hammer Curl alternatives

Hammer Curl FAQ.

What muscles does the Hammer Curl work?

The Hammer Curl primarily targets the Brachialis, training the Biceps as the main muscle group.

Is the Hammer Curl a compound or isolation exercise?

The Hammer Curl is an isolation exercise — it focuses on one muscle, which is useful for targeting and bringing up weak points.

What equipment do I need for the Hammer Curl?

You need a dumbbell. Difficulty is rated beginner.

What are good alternatives to the Hammer Curl?

Good biceps alternatives include Barbell Curl, EZ Bar Curl, Dumbbell Curl.

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