Dumbbell Hammer Curl

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Beginner
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A single-joint arm curl performed with a neutral grip, targeting the biceps, brachialis, and forearms. Used primarily for hypertrophy and improving arm thickness and grip strength.

About Exercise

Equipment

Dumbbells

Difficulty

2/5 • Beginner

Primary Muscle Groups

Biceps, Forearms

Secondary Muscles

Shoulders

Popularity Score

9

Goals

Hypertrophy
Strength
Stability

Training Style

Bodybuilding

Setup Requirements

Requires Rack

No

Requires Bench

No

Requires Spotter

No

Space Needed

Small

Noise Level

Low

Muscle Breakdown

Biceps

9/10

Long Head, Short Head, Brachialis

Forearms

8/10

Flexors

Shoulders

3/10

Anterior Delts

Programming

Typical Rep Range

8-15 reps

Rest Between Sets

60-120 seconds

How to Perform

Stand tall holding a dumbbell in each hand with palms facing your body (neutral grip). Keep your chest up and upper arms pinned firmly against your sides.

  1. Keeping the upper arms still, curl the dumbbells upward toward your shoulders without rotating the wrists.
  2. Squeeze the biceps and forearms hard at the top position of the curl.
  3. Slowly lower the dumbbells back down, resisting the weight throughout the descent.
  4. Fully extend the arms at the bottom before initiating the next repetition.

Coaching Tips

Form Cues

  • Neutral grip, palms face in
  • Keep elbows pinned
  • Slow and controlled lowering
  • Squeeze forearms hard

Breathing

Inhale as you lower the weight; exhale forcefully as you curl the weights up and brace your core.

Tempo

3-0-1

Range of Motion

Move from full elbow extension at the bottom to maximum forearm flexion without letting the elbows move forward.

Safety

Safety Notes

  • Avoid using excessive weight that forces you to lean back or swing.
  • Stop if you feel sharp pain in the elbows or wrist.
  • Maintain a rigid torso throughout the movement.

Spotting

Not required for this isolation movement; use less weight if you cannot control the eccentric phase.

Common Mistakes

  • Swinging the weights to lift
  • Allowing elbows to move forward
  • Bouncing at the bottom of the rep
  • Shortening the range of motion

When to Avoid

  • Acute elbow joint pain or tendonitis
  • Severe wrist pain

Flexibility Needed

  • Full elbow extension

Build Up First

  • Ability to maintain neutral grip under load

Also known as

Standing Hammer Curl, Brachialis Curl, Neutral Grip Curl, Dumbbell Hammer

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