Wrist Curl
Wrist Curl
The wrist curl trains the flexor muscles of the forearm — the muscles on the inner side of the lower arm responsible for curling the wrist downward. It’s a direct forearm movement that tends to get skipped in most programs, which is a missed opportunity given how much forearm strength contributes to grip and how much grip contributes to everything else.
Strong wrist flexors support better grip endurance across pulling movements like rows and deadlifts, and reduce the likelihood of forearm fatigue becoming the limiting factor in lifts where it shouldn’t be. The forearms are also a muscle group that’s visible in everyday life in a way that most other muscles aren’t — developed forearms are noticeable and functional in equal measure.
The movement is simple — the forearm rests on a surface or the thigh, the wrist curls upward through its range, and lowers back down with control. Light loads and higher reps are appropriate here. The forearm flexors are smaller muscles that respond well to volume rather than heavy loading.
Below are the wrist curl variations in the library.
Reference Card
Movement Pattern: Wrist flexion Primary Muscles: Wrist flexors — flexor carpi radialis, flexor carpi ulnaris Secondary Muscles: Finger flexors, brachioradialis
Variations
- Barbell wrist curl
- Dumbbell wrist curl
- Cable wrist curl
Considerations
- Keep loads light — this is a small muscle group that responds better to volume than heavy weight
- Full range of motion through the wrist produces better development than partial reps
- Pair with wrist extension work for balanced forearm development
Programming Notes
- Best placed at the end of an arm session or as a finisher
- Responds well to higher rep ranges (15–25)
- Consistency matters more than intensity here — the forearms respond to frequent, moderate stimulus