I'm guessing the bit about sadism was added by the headline writer, since a lot of what the author describes is textbook Crossfit. Besides, isn't it more strict

I'm guessing the bit about sadism was added by the headline writer, since a lot of what the author describes is textbook Crossfit. Besides, isn't it more strictly speaking masochistic? That said I'm currently taking a break from it due to a jumper's knee that won't go away.