When I discovered that my favorite tricep dip machine was called "the Gravitron" (duh duh dun), even I was a little intimated. From crazy names (crossover cable what?) to questionable positions (am I ...

If you've read our round-up of tricep exercises, you'll know that the tricep muscle makes up 60% of your upper arm. It's a huge proportion, and while all the exercises included in the aforementioned ...