Reverse Wrist Curl: A Complete Guide

Quick Intro

Reverse Wrist Curl, also called the Wrist Extension or Forearm Extensor Curl, is an isolation strength exercise performed by resting the forearms on a bench or the thighs, letting the hands hang off the edge and extending the wrists upward against resistance before lowering back down. It’s a forearm extensor isolation exercise done with a barbell, palms facing down.

Equipment Needed

Reverse Wrist Curl needs a barbell, with an EZ bar as an optional alternative for a more comfortable, angled hand position. Resting the forearms on a flat bench is more comfortable than balancing them on the thighs, but a bench isn’t mandatory for the movement itself.

Why Reverse Wrist Curl Matters

Extending the wrists upward against load trains the muscle on the back of the forearm that extends the wrist (extensor carpi radialis) along with the broader group of forearm extensors around it, the muscles on the opposite side of the forearm from the ones a standard curl builds. A forearm muscle near the thumb (brachioradialis) assists and holds the forearm down. Because most grip-dependent training, from curls to deadlifts to rows, loads the flexor side of the forearm far more than the extensor side, this exercise exists specifically to correct that imbalance. Muscular endurance comes first here, with strength right behind it.

When to Do It

Reverse Wrist Curl works well as a finishing exercise near the end of an upper body or arm session, ideally paired with Wrist Curl in the same session for balanced forearm development. The small forearm muscles recover quickly compared to larger muscle groups, so training this two or three times a week is a reasonable pace.

Anyone with a current case of tennis elbow or general wrist pain should approach this lift cautiously, since repeated wrist extension under load directly loads the tendons already aggravated by that condition. Using a lighter load than the flexor-side version is a reasonable way to account for how much weaker the extensors typically are.

Getting Ready

Rotating the wrists slowly through circles in both directions for about a minute readies the joint at the center of this exercise. A few unloaded reps of wrist extension, focused on a full range of motion, rehearse the movement before any weight is added.

A very light warm-up set with the bar loaded gives the extensors, a considerably weaker muscle group than the flexors, a chance to adjust before the working sets begin.

Step-by-Step Instructions

1. The setup. Sit with the forearms resting on a bench or the thighs, hands hanging off the edge holding a barbell with an overhand grip.

2. The extension. Extend the wrists upward as far as possible, keeping the forearms pinned in place, pausing briefly at the top with a full contraction.

3. The lower. Lower back down under control, letting the wrists flex as far as comfortably possible for a full stretch.

How Many, How Often

Reverse Wrist Curl is dosed by reps, sets and the weight held, with the working weight chosen relative to how well a full range of motion stays intact through a full set, since the extensors fatigue faster under load than the flexors do.

Using a light load and controlling the tempo matters more here than the weight held, since the wrist extensors are much weaker than the flexors, and using too much weight is the most common cause of elbow tendon irritation on this exercise.

Modifications and Variations

Reverse Wrist Curl has one easier version, one harder version and one alternative.

As an easier option, Reverse Wrist Curl — Dumbbell uses one dumbbell at a time, letting each wrist extend through its own range and making small load steps easier.

As a harder option, Reverse Wrist Curl — Standing Cable is done standing against a cable’s constant tension, without the support the bench or thighs give here.

For the opposite side of the forearm, Wrist Curl turns the palms up and curls the wrists, training the flexors. The two are ideally trained together.

Progression path: Reverse Wrist Curl — Dumbbell → Reverse Wrist Curl → Reverse Wrist Curl — Standing Cable.

Common Mistakes to Avoid

Using too much weight for a considerably weaker muscle group. The wrist extensors are much weaker than the flexors most grip training already builds, and loading this movement the same way as a flexor-side curl is a common cause of elbow tendon irritation. Starting noticeably lighter than a standard wrist curl is the safer approach.

Using the whole forearm to lift the weight. Letting the forearm lift off the bench or thighs to help the movement turns a strict wrist isolation into a sloppier forearm swing. Anchoring the forearms in place for every single rep is what keeps this a wrist-only exercise rather than a forearm-swing one.

Rushing the tempo instead of controlling it. Extending and lowering quickly reduces the time the extensors spend under tension, which is most of what this exercise is meant to build. Slowing both the lift and the lower down, even with a lighter weight, gets more out of every rep.

Stopping short of full extension at the top. The top of the range is where this exercise does most of its work, so a lift that ends early trains very little. If the wrist cannot reach full extension without help from the arm, the load is too heavy.

After Your Set

This lift does little to raise the heart rate, so there’s no need to wait before stretching. A wrist flexor stretch, gently pulling the fingers back with the palm facing away until a stretch is felt along the underside of the forearm, targets the joint that just worked through extension. Rotating the wrists slowly in both directions afterward helps the joint settle before moving on.

Going Deeper

Reverse Wrist Curl usually sits alongside Wrist Curl near the end of an arm or upper body session, added specifically because most other grip-heavy training already overloads the flexor side and leaves the extensors comparatively undertrained. Pairing the two in the same session is a direct way to close that gap.

Progress here tends to stall the same way it does for most small isolation exercises: chasing heavier weight before the extensors have built the endurance base a full range of motion depends on. Dropping the weight and rebuilding a full range through both extension and flexion tends to unstick a stalled reverse wrist curl faster than adding more plates to a shortened pattern.

Someone new to this lift generally needs a session or two to find a comfortable forearm position and a light starting weight, and continues adding weight gradually over the following several weeks as the extensors catch up to what the flexor side had already built.

How to Know You’re Improving

1. A full range of motion, from complete flexion to complete extension
2. No lifting of the forearms off the bench or thighs to assist the movement
3. A heavier bar extended without elbow discomfort appearing
4. Less of a strength gap between this lift and the flexor-side Wrist Curl over time

A full, controlled range through the whole set, not the number lifted, is what marks progress here.

Muscles Worked

• Extensor Carpi Radialis (a forearm muscle on the back of the wrist, lifting the hand up against the weight)
• Forearm Extensors (the muscles along the back of the forearm, working together through a small controlled range)
• Brachioradialis (a forearm muscle running from the elbow to the wrist, assisting the extension and holding the forearm down)

FAQ

Why does this exercise use so much less weight than Wrist Curl? The wrist extensors are weaker than the flexors, largely because most grip-dependent training already loads the flexor side heavily while leaving the extensor side undertrained, so matching the same weight risks elbow strain.

Should I train Reverse Wrist Curl and Wrist Curl together? Training both is a balanced approach, since Reverse Wrist Curl targets the extensors on the back of the forearm while Wrist Curl targets the flexors on the palm side (see Modifications and Variations above).

Can I do this exercise with just dumbbells if I don’t have a barbell? Yes. Reverse Wrist Curl — Dumbbell trains one wrist at a time, which many people find more comfortable than a shared bar.

Is Reverse Wrist Curl useful even if I don’t have elbow pain? Yes, it’s a useful balance exercise for anyone doing regular grip or curl-heavy training, not just a rehab tool for an existing elbow issue.

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Related to Reverse Wrist Curl — Dumbbell as the easier version and Reverse Wrist Curl — Standing Cable as the harder one.