Meh. I did gynastics for years. Rings will build shoulders like that over the years. The exceptional biceps are more genetic. Some guys have them, some don't. I've seen enough of these guys to know that he is probably 5'6" or shorter, about 145lbs and his legs are not as spectacular as his upper body. Legs, besides the floor exercise and vault, are used mostly for balance, not strength, in the various events. Hope ya feel better about yourself.