Dumbbell Skullcrusher
Build bigger triceps! The Dumbbell Skullcrusher isolates and strengthens your arms. Get ready to grow!
The Dumbbell Skullcrusher mainly works the triceps, with help from the shoulders and chest. You'll need: dumbbells.

Required Equipment

Dumbbell Skullcrusher Muscles Worked
Primary
Triceps (triceps brachii)
Secondary
Front Shoulder (anterior deltoid); Chest (pectoralis major, sternal head)
Dumbbell Skullcrusher Variations and Alternatives
How to do the Dumbbell Skullcrusher
Begin by lying flat on the floor with your knees bent and feet planted.
Grasp a dumbbell in each hand with a neutral grip (palms facing each other) and extend your arms above your chest.
Keeping your upper arms stationary, hinge at the elbows and lower the dumbbells towards your head slowly and under control.
Keep your elbows tucked in, and do not let them flare outwards during the movement.
Lower the weights until they nearly touch the floor by the sides of your head or your shoulders, depending on your arm length and mobility.
Pause briefly at the bottom of the movement.
Flex your triceps to extend your elbows and lift the dumbbells back to the starting position, being careful not to use momentum.
Repeat the movement for the desired number of repetitions and sets.
Safety Tips: Select a weight that allows you to maintain proper form and complete the targeted number of reps. Move slowly and deliberately to maximize triceps engagement and reduce the risk of injury. Keep your wrists straight throughout the exercise to avoid strain. Do not jerk your arms or shoulders; focus on isolating the triceps muscles.
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Dumbbell Skullcrusher FAQs
What muscles does the Dumbbell Skullcrusher work?
The Dumbbell Skullcrusher mainly works the triceps, with help from the shoulders and chest. The main muscles are the triceps brachii.
What equipment do you need for the Dumbbell Skullcrusher?
Dumbbells.
What workout day should the Dumbbell Skullcrusher go on?
It belongs on push day in a push/pull/legs routine.
What are some Dumbbell Skullcrusher variations and alternatives?
Similar exercises include the Band Skull-Crusher, Barbell Incline Triceps Extension Skull-Crusher, Barbell Skullcrusher and Bodyweight Bench Dip.
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