Yup and it works. I've trained in several martial arts over the years, most recently Filipino styles involving lots if semi/full contact with various...
This is why insulin resistant people need to eat every two to three hours or else get the hypoglycemic shakes. The fat is right there but their body...
Have you checked out Rich Dimitri' "shredder", it goes hand in hand with "the fence" and is another very simple (conceptually at least) but effective...