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Arms · Dumbbell

Hammer Curl

How to do the Hammer Curl with good form: step-by-step technique, the muscles it works (biceps), coaching cues and the mistakes to avoid.

Muscles worked

Primary
Biceps
Secondary
Forearms

How to do it

  1. Stand completely upright with a dumbbell in each hand, resting at your sides with a neutral grip (palms facing each other).
  2. Lock your elbows firmly into the sides of your torso and brace your core to prevent any leaning or swinging.
  3. Curl the dumbbells upward simultaneously by flexing your elbows, maintaining the neutral grip like you are holding two hammers.
  4. Focus on lifting the weight with your forearms and outer biceps until the dumbbells reach shoulder height.
  5. Pause for a distinct second at the top of the contraction.
  6. Lower the dumbbells slowly and deliberately back to the fully extended starting position without letting them drop.

Coaching cues

  • Grip like a hammer
  • Keep the upper arm completely still
  • Control the weight on the way down

Common mistakes

  • Supinating the wrists on the way up, turning it into a standard curl
  • Swinging the torso to heave the weight up
  • Letting the elbows travel forward in front of the ribs

Equipment and setup

Dumbbells

Standing tall holding a dumbbell in each hand.

Also known as: Dumbbell Hammer Curl, Neutral Grip Curl

Track your Hammer Curl in ROAN

ROAN fills in last session’s weight and reps, estimates your 1RM and keeps your best sets.

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