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ArmsDumbbellIsolation — elbow flexion

Zottman Curl

Reviewed by Bryan Cortez, MS

Lift supinated, rotate under control, and let the pronated lowering set the load.

Rep Sweet Spot
8-15
Sets
2-4
sets
RIR
1-3

Demonstration

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How to do it

Setup

  • Stand or sit tall with a dumbbell in each hand
  • Begin with neutral arms and relaxed shoulders
  • Supinate the palms as the curl begins
  • Keep wrists aligned with the forearms

Execution

  • Curl the dumbbells with palms turning up
  • At the top, rotate the forearms until the palms face down
  • Lower slowly with the pronated grip
  • Return to neutral at the bottom before the next rep

Common Errors

  • Using hip drive to curl
  • Rotating by bending the wrists
  • Dropping the pronated eccentric
  • Letting the elbows travel forward at the top

Cues That Work

  • Curl palms up; turn at the top; lower palms down

No-Fly Zone

Avoid heavy swinging, rotating through wrist deviation, or pronating before the concentric curl is complete.

Programming

Sequence priority

Late

The coordination-heavy forearm rotation and modest loading make it best suited to an accessory slot after larger pulls and simpler curls.

Progression

Model — Double

Fallback model — Double

Let the pronated eccentric set the load; reach the top of the rep range without elbow drift or wrist collapse before increasing the dumbbells.

Best program fit

Pull

Load increments

Standardthe lightest dumbbell that allows a smooth pronated descent
Smaller incrementadd reps or slow the lowering phase
Larger incrementmove up one dumbbell step only when both forearm transitions remain controlled

If it hurts

Pain is information, not a challenge to push through. Stop the set if pain is sharp, worsening, or changes how you move. These are exercise-selection options, not medical diagnosis or rehabilitation advice.

Work down this list in order. Stop at the first change that removes the pain.

  1. Step 1

    Setup tweaks

    Use one arm at a time or lighter dumbbells until the rotation sequence is automatic and pain-free.

  2. Step 2

    ROM / tempo / bias

    Extend the pronated lowering phase to three seconds without changing elbow position.

  3. Step 3

    Implement swap

    Alternating dumbbell curl plus a separate reverse curl, or hammer curl if rotation is uncomfortable.

Substitutions

Approved fallback

Alternating dumbbell curl plus a separate reverse curl, or hammer curl if rotation is uncomfortable.

The Evidence

The forearm rotation makes this mechanically distinct, but it also lowers load tolerance and adds coordination. It is not evidence that combining two grips beats training them separately.

SFR — 2.7

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