i know plenty of fat guys that can get in there and throw down Ron. A LOT of them in fact. a person's physical condition has exactly zero to do with thier ability to teach or perform.
my gut doesnt stop me from being able to teach someone how to do a technique. sure, i cant do everythign as well as i used to, but thats as much age as condition.
I know A LOT that think they can.
As martial artist dont we have a responsibility to practice what we preach? Shouldnt we lead from the front? Arent we the ones that should be trying to continue to get better and achieve more? How can you ask things from your students that you NEVER did or even tried?
John, I think that if ones physical condition does not enable them to perform - that is a problem; age, excluded for those who had put in a lifetime, but not for us under 55.
I am not the best but I will continue to train hard, not talk hard. I want my students to know that it never ends.