Dumbbell Skull Crusher (Unilateral)
The Single-Arm Dumbbell Skull Crusher is an isolation exercise performed lying on a bench, lowering a dumbbell toward the forehead and extending the elbow. It primarily targets the triceps brachii, especially the long head. The unilateral execution improves muscle balance and control.
Primary Equipment
Dumbbells
Dumbbells
Secondary Equipment
Flat Bench
Flat Bench
Key Benefits
- Builds triceps strength and size.
- Helps correct arm imbalances.
- Improves elbow stability and control.
- Complements movements like the Barbell Skull Crusher.
Instructions
- Lie on the bench and place your feet on the floor
- Hold a dumbbell with your arm extended upward
- Place your opposite hand on the elbow that will perform the movement
- Perform the elbow flexion movement in a controlled manner
Tips
- Keep your shoulders and arms stabilized during the movement
- Avoid using momentum or sudden movements
- Maintain the alignment of your elbow with your shoulder
Restrictions
Individuals with elbow pain should avoid heavy loads and jerky movements. Those with tendinitis must use controlled tempo. Maintain proper shoulder alignment to reduce strain. In cases of triceps strain or elbow injury, perform only under supervision.
Common Mistakes to Avoid
- Letting the elbow flare outward.
- Dropping the dumbbell too quickly.
- Using excessive weight.
Frequently Asked Questions
-
Does the Single-Arm Skull Crusher emphasize the long head of the triceps?
Yes, due to the stretch at the bottom.
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Is the unilateral Skull Crusher better than the barbell version?
It helps correct imbalances between arms.
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Can I lift heavy on the Single-Arm Skull Crusher?
Yes, if elbow alignment is maintained.
Target Muscle
Primary
