When I picture a black belt I used to think of a very muscular guy, looks dangerous and in general a tough guy. Now that I am no longer 7 years old I learned that for many martial arts, black belt is an impressive feat, but it does not necessarily mean you are a master.
Still even though there is that fact, I see many black belts that look obese and out of shape. Is level of fitness not a requirement for most martial arts? I know in my old kenpo dojo it was to an extent, I mean you were not required to be Mr universe or something but you had to be on good shape to spar for awhile without getting too winded to continue.
What are your thoughts on this? I am very interested to learn.