Lying Dumbbell Tricep Extension

Also known as: Dumbbell Skull Crusher, Dumbbell Skullcrusher

Lying Dumbbell Tricep Extension is a isolation strength exercise using dumbbell that trains the triceps.

Open in MyoAmigo →

Primary muscles: Triceps

Secondary muscles: Chest, Shoulders

How to do it

1. Lie on a flat bench while holding two dumbbells directly in front of you. Your arms should be fully extended at a 90-degree angle from your torso and the floor. The palms should be facing in and the elbows should be tucked in. This is the starting position.
2. As you breathe in and you keep the upper arms stationary with the elbows in, slowly lower the weight until the dumbbells are near your ears.
3. At that point, while keeping the elbows in and the upper arms stationary, use the triceps to bring the weight back up to the starting position as you breathe out.
4. Repeat for the recommended amount of repetitions.

Track it with MyoAmigo

MyoAmigo pre-fills every set of the Lying Dumbbell Tricep Extension from last time, charts your estimated 1RM trend so you can see strength move without testing a true max, and flags a stall with a concrete fix. It also credits this work toward your weekly Triceps volume on the MyoMap heatmap. New to the movement? Start with picking a working weight and progressive overload.

Related Triceps exercises

← All exercises · Browse by muscle