Illustrated guide to the Dumbbell Zottman Curls exercise

Dumbbell Zottman Curls

Curl up supinated, lower pronated — combines bicep curl and reverse curl in one rep, brutal for the forearms and brachioradialis.

Level: Beginner

Primary: Forearms

Movement: Isolation

Tags: Pull

Type: Strength (Weight Lifting)

Equipment: Dumbbell

Sports: Baseball Wrestling

Target muscles

The biceps brachii drive the supinated curl phase. The brachioradialis takes over during the pronated descent. The brachialis contributes throughout. The forearm flexors and extensors both work during the rotation phases. As a single-rep exercise that hits the biceps and forearms in sequence, the Zottman curl is uniquely efficient — and the eccentric pronated descent hammers the forearms in a way few other curls do.

How to perform

Setup

Stand with feet hip-width apart, dumbbells in each hand at the sides, palms facing forward (supinated). Elbows pinned to the sides. Trunk braced.

Execution

Curl the dumbbells up with the supinated grip — same as a standard curl. At the top of the curl, rotate the wrists so the palms face down (pronated). Lower the dumbbells slowly through this pronated position. At the bottom, rotate back to supinated. Repeat. The pronated descent is the key — slow it down to feel the brachioradialis and forearms working hard.

Common mistakes

  • Rushing the pronated descent. Three to four seconds down — that's the entire point.
  • Going too heavy. The pronated descent caps the working weight; lighter than a strict curl.
  • Skipping the rotation phases. Both rotations matter.
  • Letting the elbows drift forward.
  • Cocking the wrists. Wrists stay neutral throughout.

Progressions and regressions

Regress to standard curls and reverse curls as separate exercises until the rotation pattern is comfortable. To progress, slow the eccentric further (5-second descent), or use a fat-grip dumbbell.

Programming notes

Excellent biceps-and-forearms combination. 3 sets of 8-12 reps, two times a week. The combined stimulus is more time-efficient than running curls and reverse curls as separate exercises.

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