Here's exactly what you're working when you hit the bar to do one of the most comprehensive upper body exercises ...

Of any calisthenics exercise, pull-ups are the most difficult to perform and see improvements without significant time and effort. Your pulling muscles (biceps, latissimus dorsi, rear deltoids, ...

The push vs. pull exercise debate usually comes down to which you enjoy more: do you like bench presses or deadlifts? Does a push-up bring you unadulterated joy, or are pull-ups your thing? In all ...