Standing Hammer Curl

Illustration demonstrating a bicep hammer curl exercise. The image is divided into two parts labeled 'Start' on the left and 'Finish' on the right, with the man flexing his biceps to show the muscles worked during the exercise.

Exercise Description

The Standing Hammer Curl is an isolation exercise that targets the muscles of the upper arm using a neutral grip, with the palms facing each other throughout the movement. Unlike traditional curls, the hammer grip places greater emphasis on the brachialis and brachioradialis while still effectively training the biceps. This exercise is highly effective for building overall arm thickness, grip strength, and balanced arm development.

Primary Muscles Worked

  • Brachialis

  • Brachioradialis

Secondary Muscles Worked

  • Biceps Brachii

  • Forearm Flexors

  • Forearm Extensors (Stabilization)

  • Anterior Deltoids (Stabilization)

  • Core Muscles (Stabilization)

How to Perform Correctly

Setup

  1. Stand upright holding a dumbbell in each hand at your sides.

  2. Position your palms facing each other in a neutral grip.

  3. Place your feet shoulder-width apart.

  4. Lift your chest and pull your shoulders back.

  5. Engage your core and maintain a neutral spine.

  6. Keep your elbows close to your torso.

Movement

  1. Curl the dumbbells upward by bending your elbows.

  2. Keep your palms facing each other throughout the exercise.

  3. Maintain stationary upper arms and avoid moving the elbows forward.

  4. Continue until the dumbbells reach approximately shoulder height.

  5. Squeeze your arm muscles at the top position.

  6. Pause briefly at peak contraction.

  7. Slowly lower the dumbbells back to the starting position under control.

  8. Repeat for the desired number of repetitions.

Common Mistakes to Avoid

Swinging the Body

  • Avoid leaning backward or using momentum to lift the weights.

Moving the Elbows Forward

  • Keep the elbows close to your sides throughout the movement.

Using Excessive Weight

  • Heavy dumbbells often compromise form and reduce range of motion.

Rotating the Wrists

  • Maintain a neutral grip throughout the entire exercise.

Incomplete Range of Motion

  • Fully extend the arms at the bottom and complete the curl at the top.

Shrugging the Shoulders

  • Keep the shoulders relaxed and avoid trap involvement.

Lowering Too Quickly

  • Control the eccentric phase to maximize muscle activation and reduce injury risk.

Arm Exercises