Step by step
- Set the bench to a moderate incline and rest your back and head against it.
- Let both arms hang naturally with palms forward and shoulders relaxed.
- Keep the upper arms still as you curl the dumbbells toward the shoulders.
- Lower slowly until the elbows are nearly straight without letting the shoulders roll forward.
Common mistakes
- Lifting the shoulders off the bench or moving the elbows forward.
- Forcing the arms into a painful stretch at the bottom.
Anatomy and technique: the references below. Region boundaries and movement diagrams are schematic. Exercise images are AI-generated illustrations.