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Skull Crusher Triceps

How to do the skull crusher lying triceps extension,aug 28, 2020 the lying triceps extension is an overhead extension performed while lying on a flat bench and using a dumbbell, two dumbbells, or a barbell. this is an isolation exercise to build the triceps muscle group in the upper arm. the skull crusher gets the name because if you use poor form you could endanger your skull.

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