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Dumbbell skull crusher

VeryWellFit: "The lying triceps extension is an isolation exercise that builds the triceps muscle group in the back of the upper arm. It is also called the skull crusher because if you use poor form, you could endanger your skull." [ID: db_skull_crusher]

Instructions

First time: Do 1 set, 10 reps...go slow and breath. Mind your skull!   💀

Steps:

1. Start position: Lay on your back (floor or bench) with arms reaching up and a dumbbell in each hand
2. Flex your elbows and lower the weight toward the top of your head. Your upper arms should remain relatively perpendicular to your body. This keeps the tension on the triceps versus shifting it to the shoulders.
3. Push dumbbells up, returning to start position

Details

My preference is two dumbbells, but you can also do this exercise with just one.

Progressions: Add weight, sets, reps

Little help

Video: Skull crusher demo by Onnit Academy, www.youtube.com/watch?v=1BDGIcMTSXc

Article: "How to Do Skull Crushers" by VeryWellFit, www.verywellfit.com/doing-the-triceps-extension-skullcrusher-3498313

Image source: Onnit Academy, www.youtube.com/watch?v=1BDGIcMTSXc