Corner Rack Pull-Ups...awesome lat and upper back pull-up variation with a very simple setup. This one does require a power rack but because it requires ZERO setup, it should be doable even in a crowded gym... just ask nicely to work in when somebody is resting (they will, of course, ask you what you're doing and why it's so good when they see it in action). This one is a challenging pull-up variation because your hand placement minimizes upper arm flexor involvement in the movement, forcing mor