Dumbbell Palms-Down Wrist Curl
What Is the Dumbbell Palms-Down Wrist Curl?
Dumbbell Palms-Down Wrist Curl is an isolation exercise that primarily targets the forearms, specifically the wrist extensors on the back of the forearm. It is a beginner-level movement performed seated with the forearms resting on the thighs and the palms facing down, so the wrist is the only joint that moves.
The wrist extensors hold the wrist slightly bent back while the fingers squeeze, which lets the finger flexors produce their full gripping force. Rows, pull-ups and curls train the grip hard but rarely take the wrist extensors through their full range, so this exercise fills that gap. It usually sits at the end of an arm or pulling session, often paired with the Dumbbell Palms-Up Wrist Curl so both sides of the forearm get trained.
This exercise can also be performed with a barbell, which allows you to lift heavier weights and apply more even resistance across both wrists. However, using dumbbells offers greater freedom of movement, allowing each wrist to work independently. This can help correct muscle imbalances and improve coordination.
Lifters, climbers and racquet-sport players who want sturdier wrists and forearms benefit most, and so does anyone whose training is heavy on gripping but light on wrist extension. Expect to use far less weight than on palms-up wrist curls, since the extensors are a smaller muscle group. If even the lightest dumbbell is too much, start with the Band Palms-Down Wrist Curl and move to dumbbells once high-rep sets feel easy.
Muscles Worked
- Extensor Carpi Radialis
- Primary
- Flexor Carpi Radialis
- Minimal
- Flexor Carpi Ulnaris
- Minimal
Instructions
- Sit on the end of a flat bench with your feet flat on the floor, about hip-width apart, holding a dumbbell in each hand.
- Lean forward and rest your forearms along your thighs, palms facing down, so your wrists and hands hang just past your knees.
- Grip the handles firmly and let your wrists bend down until your knuckles point toward the floor.
- Raise the backs of your hands by bending your wrists upward, lifting the dumbbells as high as your wrists allow while your forearms stay on your thighs.
- Pause briefly at the top.
- Lower the dumbbells slowly back to the start, stopping before the weight pulls your wrists into a forced stretch.
- Repeat for the desired number of reps.
Common Mistakes
Going Too Heavy
The wrist extensors are small, so a weight that suits palms-up wrist curls usually forces the forearms off the thighs or cuts the range short.
Lifting the Forearms Off the Thighs
Raising the elbows or forearms turns the rep into an arm movement and takes the load off the wrist extensors.
Cutting the Range Short
Stopping halfway leaves out much of the wrist's range, so lower until the knuckles point toward the floor and raise the backs of the hands as high as they comfortably go.
Dropping Into the Bottom
Letting the dumbbell pull the wrist down fast loads the extensor tendons in their most stretched position, so lower each rep under control.
Rushing the Reps
Fast, bouncing reps swap muscle work for momentum, so keep a steady tempo on the way up and a slower one on the way down.
Injuries
Dumbbell Palms-Down Wrist Curl is a low risk exercise when performed with proper technique.
The wrist extensors share a tendon origin on the outer elbow, the spot that becomes sore in tennis elbow, so that is where overload usually shows up first. The back of the wrist can also get irritated if the dumbbell is allowed to yank the wrist down at the bottom. Use a weight you can lower slowly, keep the forearms on the thighs, and stop each rep short of a forced stretch.
The same palms-down pattern is a standard part of tennis elbow rehab: in a trial of 81 adults with tennis elbow lasting more than three months, three months of daily palms-down wrist lifts with a light water container, forearm supported, reduced elbow pain faster than a wait-and-see approach. Anyone with a current diagnosis should still take the load and schedule from their clinician.
To regress, use a lighter dumbbell, work one arm at a time, or switch to the Band Palms-Down Wrist Curl. To progress, add weight in small steps or slow the lowering phase. Stop if you feel sharp pain at the outer elbow or the back of the wrist, or any numbness or tingling in the hand.
Frequently Asked Questions
- Q: Can I use a barbell for this exercise?
Yes, using a barbell allows you to lift heavier, but dumbbells give each wrist more freedom of movement.
- Q: Why can I lift so much less palms-down than palms-up?
The wrist flexors on the palm side of the forearm are a larger, stronger group than the extensors on the back. Most people use a noticeably lighter dumbbell for this exercise than for the Dumbbell Palms-Up Wrist Curl, and that is normal.
- Q: Is this the same as a reverse curl?
No. A reverse curl bends the elbow with an overhand grip and mainly works the brachioradialis and elbow flexors, while this exercise keeps the elbow still and moves only the wrist.
- Q: How often should I train my wrists?
Once or twice a week is sufficient for most people, especially when combined with other forearm exercises.
- Q: Should I do this exercise if I have wrist pain?
Not through sharp or worsening pain; stop and get it checked by a healthcare professional. Palms-down wrist work with light weights is often part of tennis elbow rehab, but the load and timing should come from whoever is managing the injury.