Here is the deal bro.I did crossfit when boxing season would be over.There are a million versions of it.BUT try skipping rope for just 30 seconds. Not easy right? So I did 4 sets of 3 minutes. Now try slamming on a heavy bag for 30 seconds. Not easy...I did 4 sets of 3 minutes.Sprints 100's, 200's. If you do it correctly you will be in the best shape of your life. It is kind of like saying basketball players are skinny and not in as good of shape as you are. So who was in better shape..Lebron James or arnold? See...it is what you like. Most on this board like to be big with big muscles, but don't think gymnasts are not in shape. Ever watch American Ninja Warrior? Think they are in shape...for sure