Single-Arm Dumbbell Skull Crusher
Also known as: One-Arm Dumbbell Skull Crusher, Single-Arm Lying Triceps Extension, Single-Arm DB Skull Crusher, Single-Arm Dumbbell Lying Triceps Extension
Variation of: Dumbbell Skull Crusher
Body region
Equipment
Technique
- Lie on a flat bench with one dumbbell held straight above your shoulder, palm facing in.
- Hold the working upper arm with your free hand to keep it still.
- Bend only at the elbow and lower the dumbbell beside your head.
- Stop when your forearm is about parallel to the floor, then straighten your arm.
- Finish the set and switch arms.
Cues
- Keep the upper arm pointing up.
- Lower slowly and keep the dumbbell away from your face.
Common mistakes
- Letting the elbow drift out to the side.
- Moving the upper arm so it turns into a press.
- Lowering the weight too fast near the head.