Pull-ups are undoubtedly effective, but they are also among the most challenging exercises in the fitness world. Fortunately, there's a significant aid, especially for beginners: the pull-up machine.

Add Yahoo as a preferred source to see more of our stories on Google. A classic among the reps, pull-ups are great in that they train a surprisingly large part of the body. All you need is a bar and ...

Achieving a pull-up is a significant fitness milestone for many people. First one, then maybe five, 10 or more: "The ability to do pull-ups is, in my book, an impressive sign of fitness and not a ...