Hammer Curls — start position
Start
Hammer Curls — end position
End

Arms / Beginner / Isolation (single joint)

Hammer Curls

A dumbbell isolation exercise for the biceps.

At a glance

Primary
Biceps
Equipment
Dumbbells
Movement pattern
Elbow flexion (curl)
Level
Beginner
Type
Arms, Isolation (single joint)

How to do it

  1. Stand up with your torso upright and a dumbbell on each hand being held at arms length. The elbows should be close to the torso.
  2. The palms of the hands should be facing your torso. This will be your starting position.
  3. Now, while holding your upper arm stationary, exhale and curl the weight forward while contracting the biceps. Continue to raise the weight until the biceps are fully contracted and the dumbbell is at shoulder level. Hold the contracted position for a brief moment as you squeeze the biceps. Tip: Focus on keeping the elbow stationary and only moving your forearm.
  4. After the brief pause, inhale and slowly begin the lower the dumbbells back down to the starting position.
  5. Repeat for the recommended amount of repetitions.

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Muscles worked

Neck (Front)Upper traps (Front)Front delts (Front)Side delts (Front)Chest (Front)Serratus anterior (Front)Biceps — primary (Front)Forearms & grip (Front)Abs (Front)Obliques (Front)Hip flexors (Front)Quads (Front)Adductors (Front)Shins (tibialis) (Front)Calves (Front)Outer shins (peroneals) (Front)Feet (arch & toes) (Front)Neck (Back)Upper traps (Back)Upper back (rhomboids, mid/lower traps) (Back)Rear delts (Back)Side delts (Back)Rotator cuff (Back)Lats (Back)Lower back (erectors) (Back)Triceps (Back)Forearms & grip (Back)Hip abductors (glute med) (Back)Glutes (Back)Hamstrings (Back)Adductors (Back)Calves (Back)
FrontBack
  • Primary: Biceps

Best for

How specific this exercise is to each movement.

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Photos and instructions: free-exercise-db (github.com/yuhonas/free-exercise-db), public domain.