Wrist Curl

What is the Wrist Curl?

The wrist curl is a forearm isolation that trains the wrist flexors, the muscles on the palm side of the forearm. Resting the forearms on a bench or your thighs, you curl the weight up by flexing only the wrists, directly building forearm size and grip strength that carry over to every pulling lift.

Muscles worked

Primary: Forearms

The wrist flexors on the underside of the forearm contract to curl the hands up; because the forearms are braced, the movement isolates them almost entirely.

How to perform the Wrist Curl

1. Sit on a bench and rest your forearms along your thighs with the wrists and hands hanging just off the edge of the knees.
2. Hold a dumbbell in each hand with the palms facing up, which trains the wrist flexors on the underside of the forearm.
3. Let the dumbbell roll down toward the fingertips and open the hand slightly to reach a full stretch at the bottom.
4. Curl the wrists up by closing the fingers and flexing the wrist as high as the joint allows.
5. Squeeze the flexors at the top, then lower under control back through the full range to the fingertips.
6. Keep the forearms pinned to the thighs so the movement happens only at the wrist joint, not the elbow.

Suggested working range: 12–20 reps. Default progression: double progression.

Mechanics

A single-joint isolation: the only movement is wrist flexion, with the forearms supported so nothing else contributes. Bracing the forearms on a bench or the thighs is what keeps the work on the wrist flexors rather than the biceps.

Form cues

• •Rest the forearms on a bench or your thighs with the wrists just past the edge, palms up.
• •Let the weight roll down to the fingers for a full stretch at the bottom.
• •Curl up by flexing only the wrists. The forearms stay flat and still.
• •Squeeze at the top and lower slowly rather than letting the weight drop.

Common mistakes

• •Letting the forearms lift off the thighs so the elbow joint helps instead of the wrist.
• •Using such a short range that the dumbbell never rolls to the fingertips at the bottom.
• •Loading too heavy and swinging the whole forearm instead of curling only the wrist.
• •Skipping the fingertip stretch at the bottom, which cuts the working range in half.

Variations & alternatives

• •Barbell wrist curl: loads both wrists on one bar for easy overload.
• •Cable wrist curl: keeps constant tension on the flexors through the range.
• •Reverse wrist curl (wrist extension): trains the opposite side of the forearm.
• •Farmer’s carry, a loaded-carry alternative that builds grip and forearm endurance.

Wrist Extension

Forearms · Dumbbell

Barbell Wrist Curl

Forearms · Barbell

Dead Hang

Forearms · Bodyweight

Towel Hang

Forearms · Bodyweight

Cable Wrist Curl

Forearms · Cable

Programming: sets, reps & when to use it

Program the wrist curl in the library’s 12–20 rep range, where a full range is easy to keep and the wrists stay comfortable. Run it at the end of an arm or pull session, using a light weight you can move through a full range. A couple of sets a few times a week builds forearm size and grip.

Frequently asked questions