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Decline Skull Crusher

A skull crusher variation performed on a decline bench, increasing the range of motion and tricep stretch.

Setup

Lie on a decline bench, holding a bar above your chest. Arms extended, a slight bend in the elbows to start.

Movement

Lower the bar toward your forehead. Bend only at the elbows, keeping your upper arms stationary. Stop just above your forehead. Same careful, controlled stopping point as a standard skull crusher.

Return

Extend back to the starting position. Straighten your arms fully, maintaining the same upper-arm position throughout.

Common Mistake to Avoid

Using too much weight given the increased range and decline angle. This variation typically requires lighter weight than a flat-bench skull crusher.

Equipment Barbell or EZ-bar, decline bench
Primary Muscles Triceps
Secondary Muscles None significant

Why it matters

The decline angle increases the stretch on the triceps at the top of the movement compared to a flat-bench skull crusher, offering an extended range of motion that some lifters find more effective for tricep development.

How to do it

  1. Lie on a decline bench, holding a bar above your chest. Arms extended, a slight bend in the elbows to start.
  2. Lower the bar toward your forehead. Bend only at the elbows, keeping your upper arms stationary.
  3. Stop just above your forehead. Same careful, controlled stopping point as a standard skull crusher.
  4. Extend back to the starting position. Straighten your arms fully, maintaining the same upper-arm position throughout.

Common mistakes

  • Using too much weight given the increased range and decline angle. This variation typically requires lighter weight than a flat-bench skull crusher.
  • Letting the elbows drift forward or backward. Same form principle as any skull crusher variation — keep the upper arms fixed.
  • Choosing too steep a decline. A moderate decline angle is usually sufficient — overly steep can make the setup and bar path awkward.
  • Skipping a spotter or careful weight selection given the bar's position near the face. The same safety considerations as a standard skull crusher apply here, with the added complexity of the decline angle.

Sets & reps by level

Beginner

Not typically recommended — master the flat-bench skull crusher first.

Intermediate

3 sets of 8–10 reps with light to moderate weight.

Advanced

3–4 sets of 8–10 reps at a more challenging weight, careful control throughout.

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