If you're a CrossFit or Hyrox fan, the chances are you'll have come across the fabled L-sit. An advanced calisthenics move (that's a blend of bodyweight strength and gymnastics, for the unintiated: ...

The phenomenon began, as many do, with a post. There, in 2008 on the bodybuilding.com forum, a debate developed between users over the best way to work out, and devolved into an argument over the ...