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Smith-Machine Skullcrusher

Build bigger triceps with Smith-Machine Skullcrushers. A key exercise for serious arm growth.

The Smith-Machine Skullcrusher is a compound exercise that mainly works the triceps. You'll need: exercise bench or smith machine or weight plates.

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Required Equipment

Exercise Bench
Exercise Bench
Smith Machine
Smith Machine
Weight Plates
Weight Plates

Smith-Machine Skullcrusher Muscles Worked

Primary

Triceps (triceps brachii)

How to do the Smith-Machine Skullcrusher

  1. Set up the bench: Adjust the incline bench to a 45-degree angle and position it so that you are facing away from the Smith machine.

  2. Load the weight: Add the desired amount of weight to the Smith machine barbell and set the safety stops at an appropriate height for your range of motion.

  3. Position yourself: Lie down on the incline bench with your feet flat on the floor for stability.

  4. Hand positioning: Grab the barbell with an overhand grip (palms facing away from you), with your hands slightly closer than shoulder-width apart.

  5. Lift the barbell: Unrack the barbell and hold it directly above your chest with your arms fully extended.

  6. Lower the barbell: Keeping your elbows in place and upper arms perpendicular to the floor, slowly lower the barbell down towards your head by bending your elbows.

  7. Extend your arms: Without bouncing the barbell, extend your elbows and press the bar back to the starting position by contracting your triceps.

  8. Repeat: Repeat for the desired number of repetitions while maintaining good form and control. After the set, re-rack the barbell securely.

Safety and Tips: Do not use too much weight, as it can put excessive stress on your elbow joints. Keep your movements controlled; avoid jerky motions or using momentum, which could lead to injury. Ensure that the safety stops are properly adjusted to prevent the bar from lowering too far. Consider having a spotter, especially when attempting heavier weights, to assist you if needed.

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Smith-Machine Skullcrusher FAQs

What muscles does the Smith-Machine Skullcrusher work?

The Smith-Machine Skullcrusher mainly works the triceps. The main muscles are the triceps brachii.

What equipment do you need for the Smith-Machine Skullcrusher?

Exercise bench or smith machine or weight plates.

Is the Smith-Machine Skullcrusher a compound exercise?

Yes. It's a compound movement, meaning it trains several muscle groups at once rather than isolating one.

What workout day should the Smith-Machine Skullcrusher go on?

It belongs on push day in a push/pull/legs routine.

What are some Smith-Machine Skullcrusher variations and alternatives?

Similar exercises include the Barbell Incline Triceps Extension Skull-Crusher, Barbell Skullcrusher, Cable Incline Skull-Crusher and EZ-Bar Incline Triceps Extension.

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