Barbell Wrist Curl: how to do it right
In short: Barbell wrist curl to isolate the forearm flexors, loaded in the shortened position.
How to do it, step by step
- 1Sit down, forearms resting on your thighs, wrists hanging off the edge, palms facing the ceiling, bar in an underhand grip.
- 2Let the bar roll toward your fingertips to start from full wrist extension.
- 3Curl the bar toward you by flexing the wrists, without lifting the forearms.
- 4Squeeze hard for 1 second at the top, wrists fully closed, maximum contraction.
- 5Control the lowering slowly down to the full opening.
The mistake to avoid
Don't do half reps, unroll your fingers fully at the bottom.
Other common mistakes
- Lifting the forearms off the thighs to cheat: keep them glued down, only the wrist moves.
- Not marking the contraction at the top: squeeze for a firm 1 second, it's the key point of this movement.
- Loading too heavy and losing range: go lighter to travel from full extension to tight flexion.
- Swinging with the arms: the movement comes only from the wrists, everything else stays still.
Muscles worked
- Main:
- Forearms
The wrist and finger flexors on the front of the forearm: flexor carpi radialis and ulnaris, palmaris longus, plus the finger flexors. They close the wrist by bringing the palm toward the forearm. No notable secondary muscle, it's a pure isolation.
What to replace it with
Same muscle, same part of the movement: these exercises do the same job.
Frequently asked questions
How do I do this exercise?
Sit down, forearms resting on your thighs, wrists hanging off the edge, palms facing the ceiling, bar in an underhand grip. Let the bar roll toward your fingertips at the bottom, then curl it toward you by flexing the wrists without lifting the forearms. Squeeze hard for 1 second at the top, then lower slowly.
How far up should I go?
At the bottom, let the bar roll to your fingertips to fully open the wrist. At the top, close all the way and squeeze hard for 1 second, that's where the tension is highest and where the muscle really works. Use the full range you can control, not the one you force by squirming.
I don't feel anything, is that normal?
You should feel the inside of the forearm burn. Slow down, go lighter if needed and above all mark the peak: squeeze hard for 1 second at the top, wrists fully closed. Let the bar roll to your fingertips at the bottom, re-grip and close hard. Aim for long sets, this muscle loves volume.
How fast should I do the movement?
Curl up firmly and squeeze for 1 second in the closed position. Lower slowly over 2 to 3 seconds, controlling the opening of the wrist. It's the peak contraction at the top that counts, not speed.
How do I breathe?
Breathe out as you curl the bar up, breathe out on the contraction. Breathe in during the controlled lowering. Keep the trunk braced and the shoulders stable, the effort stays local to the forearms.