What you'll gain

• Builds forearm size and grip strength through direct isolation.

• Strengthens wrist flexion for sport, lifting, and climbing.

• Improves grip endurance for heavier pulling and carrying work.

Step-by-Step Instructions

1. 1

   Sit on a bench and rest your forearms on your thighs with your wrists hanging just past the knees.

2. 2

   Hold the bar with an underhand grip, hands shoulder-width apart, and let it roll into your fingertips.

3. 3

   Curl the bar up by closing your fingers and flexing your wrists, keeping the forearms pinned to your thighs.

4. 4

   Squeeze hard at the top with the wrists fully flexed and feel the forearms contract.

5. 5

   Lower the bar back down under control, letting it roll out toward the fingertips at the bottom.

6. 6

   Repeat for high reps, focusing on a slow tempo and a full range from fingertips to top squeeze.

Common Mistakes

• Lifting the forearms off the thighs, which lets the biceps take over instead of isolating the forearms.

• Using too much weight and shortening the range so the bar barely moves at the wrist.

• Skipping the fingertip roll at the bottom, which cuts out half the forearm and grip work.

• Rushing the tempo and bouncing the reps, which removes the time-under-tension that builds the forearms.

About This Exercise

The barbell wrist curl isolates the forearm flexors through a short, controlled wrist flexion. With the forearms supported and only the wrists moving, it strips out every other muscle and forces the forearms to do all the work. It is one of the few movements that trains grip and forearm size directly. For app builders and content creators, this clip slots cleanly into arm-day finishers, grip-strength accessory modules, and climbing or grappling sport-specific tracks. It is short, low-fatigue, and pairs well with wrist extensions and farmer carries inside dedicated grip blocks for trainers building a more complete arm program.

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