55 years old, 6'2" and have never gone over 200 pounds. I walk a lot at work and usually have to make several trips a day to the tops of the boilers (about 6 stories).
Yeah...I go a lot slower than I did a couple decades ago...but at least now I know what to look for when I get there...
I wish I were in better shape, but still get around OK for a semi-old-fart.