Wrist Curls (How To, Benefits, Common Mistakes)

The Wrist Curl is a focused forearm exercise that strengthens the wrist flexors, the muscles responsible for bending your wrist and gripping objects. It’s one of the best ways to build grip strength, forearm endurance, and balanced arm development.

This exercise is typically performed seated with a barbell or dumbbells, allowing the wrists to move freely over the edge of a bench.

Primary Muscles Worked: Wrist Flexors (Forearm Flexor Group)
Secondary Muscles Worked: Biceps (stabilization), Finger Flexors
Equipment Needed: Barbell or Dumbbells and Bench

How To Do Wrist Curls

Step-by-Step Instructions

Set-Up:
- Sit on a bench and hold a barbell or a dumbbell in each hand with an underhand grip (palms facing up).
- Rest your forearms on your thighs or the edge of a bench so that your wrists hang off the edge, palms up.
- Keep your elbows bent about 90 degrees and your core engaged.
Execution:
- Allow the bar or dumbbells to roll down toward your fingers, extending your wrists fully.
- Curl the weight upward by flexing your wrists as high as possible.
- Squeeze your forearms at the top, then lower the weight slowly back to the starting position.
Tips for Proper Form:
- Keep your forearms stationary, only your wrists should move.
- Use a slow, controlled motion, especially during the lowering phase.
- Avoid using momentum or bouncing the weight.

Key Benefits

Strengthens forearm flexors for better grip and wrist stability.
Improves performance in lifts requiring strong grip (deadlifts, pull-ups, rows).
Enhances wrist control for sports and everyday activities.
Helps prevent wrist and elbow overuse injuries by balancing arm strength.

Modifications and Variations

Easier Option:
- Use lighter dumbbells to focus on technique and full range of motion.
- Perform one arm at a time for better focus and control.
Harder Option:
- Use a thicker bar or Fat Gripz for increased grip challenge.
- Perform Reverse Wrist Curls to target the wrist extensors.
- Add a pause at the top for extra tension.

Common Mistakes

Using Momentum: Move slowly (avoid jerking the weight up).
Lifting with Forearms: Keep the forearms still and isolate the wrists.
Partial Range of Motion: Let the weight roll down toward your fingers for a full stretch.
Going Too Heavy: Focus on control and high tension, not load.

Reps and Sets Recommendations

For Strength: 3–4 sets of 8–10 reps.
For Hypertrophy: 3–4 sets of 12–15 controlled reps.
For Endurance/Grip Training: 2–3 sets of 15–20 slow, continuous reps.

Wrist Curl Alternatives

If you’re unable to do Reverse Wrist Curls (don’t have a barbell, uncomfortable on your wrists, etc) here are a few alternatives that you may be able to use as a substitute.

Behind the Back Wrist Curls

Behind the Back Wrist Curls are the perfect alternative if you don’t have a bench to lay your forearms on.

Lay a barbell on the rack just below arm’s length. Reach down and grab the bar behind the back and stand tall. Curl the bar up by flexing the forearms and curling the wrists up. Lower back down and repeat.

Reverse Wrist Curl

Reverse Wrist Curl isn’t so much an alternative to Wrist Curls, but more of a complimentary exercise.

As I mentioned earlier, wrist extensors are generally more neglected in workout programs than wrist flexors. So, if you are going to include Wrist Curls in your workout program then I would highly suggest also including Reverse Wrist Curls as well.

They are done basically exactly the same as Wrist Curls. The only difference is you’ll grab the bar with an overhand (pronated) grip instead of an underhand grip. You’ll also probably need to use less weight because the wrist extensors are generally weaker.