Skull Crusher
The Skull Crusher primarily works the Triceps (Lateral Head), Triceps (Long Head), Triceps (Medial Head), with secondary activation of the Anconeus and stabilizer support from the Pectoralis Major (Sternal). It is a barbell isolation exercise at intermediate difficulty.
Lying barbell tricep extension lowering weight toward forehead.
| Equipment | Barbell |
|---|---|
| Difficulty | Intermediate |
| Type | Isolation |
| Movement | Extension |
| Force | Push |
| Laterality | Bilateral |
| Primary | Triceps (Lateral Head), Triceps (Long Head), Triceps (Medial Head) |
| Secondary | Anconeus |
Muscles Worked
Front
Back
Primary
Secondary
Stabilizer
Primary Muscles
- Primary Muscle Triceps (Lateral Head) (triceps)
- Primary Muscle Triceps (Long Head) (triceps)
- Primary Muscle Triceps (Medial Head) (triceps)
Secondary Muscles
Stabilizer Muscles
- Stabilizer Muscle Pectoralis Major (Sternal) (chest)
Instructions
- Preparation: Grasp barbell with overhand grip, hands shoulder-width apart. Execution: Extend through full range of motion against resistance. Return to starting position under control. Repeat. Comments: Maintain control throughout movement to fully engage the Triceps (Long Head), Triceps (Lateral Head), Triceps (Medial Head).
Alternative Exercises
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