One Arm Wrist Curl

The best exercise for isolating the forearm flexors and building grip strength independently in each hand.

Exercise Details

Level: Beginner
Body Area: upper
Type: pull
Movement: Unilateral

Required Equipment

Dumbbells

Target Muscle Groups

Primary

Forearms

Secondary

Biceps

Setup

Rest your forearm on a bench with your palm facing up. Hold a dumbbell at your fingertips.

Instructions

1. Curl the weight upward by flexing your wrist.
2. Squeeze the forearm hard at the peak.
3. Lower slowly, letting the weight roll back to the fingers.
4. Keep your elbow still.
5. Control the tempo.

Common Mistakes

1. Using the bicep.
2. Lifting the forearm.
3. Rushing the reps.

Alternative Exercises

Zottman Curl

Beginner / Dumbbells / Biceps / pull

A unique arm exercise that combines a standard curl with a reverse curl. It targets the biceps on the way up and the forearms on the way down.

Wrist Curl

Beginner / Barbell / Forearms / pull

A forearm-focused isolation exercise. It builds grip strength and muscle volume in the forearm flexors through controlled flexion.

Wrist Circles

Beginner / Bodyweight-only / Forearms / isolation

A mobility exercise for the wrist joint. It improves joint health, flexibility, and prepares the wrists for heavy pressing or pulling movements.

Standing Wide Grip Biceps Curl

Beginner / Barbell / Biceps / pull

Emphasizes the inner (short) head of the biceps. The wider grip shifts the tension to build arm thickness and a fuller bicep appearance.

Standing One Arm Concentration Curl

Beginner / Dumbbells / Biceps / pull

Unilaterally isolates the bicep to fix imbalances and maximize the peak. The vertical arm position ensures high tension on the bicep fibers throughout.

Standing Concentration Curl

Beginner / Dumbbells / Biceps / pull

A standing variation that isolates the biceps by positioning the arm in a fixed vertical line, minimizing any possible use of momentum or leg drive.

Standing Biceps Curl

Beginner / Dumbbells / Biceps / pull

The most popular bicep exercise for building overall arm mass. It targets the biceps brachii through a natural and powerful curling arc.

Seated Reverse Grip Concentration Curl

Beginner / Dumbbells / Biceps / pull

A unique unilateral isolation exercise for the brachialis and forearms. Sitting removes momentum while the reverse grip targets the outer arm and forearm extensors.