Q: The lead-off exercise for the triceps sweep workout [in the X-traordinary Arms e-book] is lying extensions, or skull crushers. You describe the best grip width and how to use an EZ-curl bar for more long-head involvement, but I don’t like dragging a bar over to a flat bench. Can I use dumbbells for lying extensions instead of a bar?
A: Magnetic resonance imaging shows that lying extensions on a flat bench with a bar (skull crushers) mostly stress the triceps’ long head, so we classify it as a sweep exercise in the X-traordinary Arms e-book. You would think using dumbbells would be the same—but that’s not the case. [Read more…]