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Skull Crusher
aka Lying Tricep Extension
Isolation Barbell & Rack Isolation
Triceps
Rep range: 8–12 Arm Dominant
Cues
- Hold barbell or EZ-bar straight above shoulders on flat bench
- Lower bar toward forehead or crown by hinging at elbows
- Extend elbows to return to starting position
Common Mistakes
- Flaring elbows outward excessively
- Allowing upper arms to swing forward and backward