I guest that I would be consider "fat" I'm 5'9" and wiegh 227 right now! I'm in shape for my age 45. I know I can move better at 190 lbs. but for the most part, reality is I will not be facing 20 years with fresh legs so being in shape and being overwieght is a total different structure. One can be in pretty good shape while being overwieght, in my own opion and I own and instruct plenty of young adults in TKD. We all as we would like to be in the best physical shape possible have limitation with health issue and other personal problem but still have the knowledge to pass along.