Fully developed triceps add size and shape to your upper arms. The impressive horseshoe shape of the muscle looks great in a t-shirt and counterbalances a flexed biceps.
One of the most popular triceps exercises is the skull crusher, also known as the lying triceps extension. In this article, we go over the unilateral version of the conventional exercise — the single-arm skull crusher. You’ll learn how to do the single-arm skull crusher with the perfect form, the benefits, and the variations and alternatives of the exercise.
