Nick Lees: NASA technology inspires 'middle ager' to keep pedalling after injury

I am 75 years old, and after chatting to a couple of old friends this week I realized I have reached the northern end of middle age.
My first conversation was with former Birmingham, U.K., pub owner Clive Burke, 68, who recently placed first in a race up five Edmonton towers to support prostate cancer research at the University of Alberta.
“I climbed some 340 flights of stairs, or about 1,220 metres, in 47 minutes,” Burke said. “I finished ahead of the 12 teams taking part &hel