Arms · Isolation

Incline Dumbbell Curl

A bicep curl on an incline bench that stretches the long head of the biceps for a deeper contraction and greater growth stimulus. Leaning back puts the arms behind the torso, lengthening the biceps at the bottom in a way no standing curl can. Training that stretched position hard is one of the best-supported tricks for arm growth, and this is the simplest way to do it.

By Macros Inc Team Verified by Alex Dedmon Updated August 2026

Beginner Dumbbell Isolation Pull
incline-dumbbell-curl-poster
  • Level Beginner
  • Equipment Dumbbell
  • Primary Muscles Biceps
  • Movement Isolation Pull

Demonstration

Watch the Form Demo

Technique

How to Do the Incline Dumbbell Curl

  1. Set an incline bench to around 45 degrees and lie back with a dumbbell in each hand.
  2. Let both arms hang straight down and slightly behind your torso.
  3. Curl the dumbbells up without letting the elbows swing forward.
  4. Squeeze at the top, forearms just short of vertical.
  5. Lower over two to three seconds back to fully hanging arms.
  6. Keep your head and upper back against the bench throughout.

Anatomy

Muscles Worked

arms
Primary muscles
Biceps

Do This

Form Cues

  • Set the bench at around 45 degrees and let the arms hang straight down.
  • Keep the upper arms still so the stretch stays on the biceps.
  • Start each rep from a fully straight arm.
  • Feel the stretch at the bottom before every rep starts. That position is what you set the bench for.

Avoid This

Common Mistakes

  • Letting the elbows swing forward as you curl.
  • Sitting too upright, which removes the stretch that makes this variation work.
  • Cutting the bottom of the range short because the stretch is uncomfortable.
  • Going as heavy as your standing curl. The stretched position is weaker and needs lighter dumbbells.

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