Floor-walking

In an attempt to get fit for a mountain trek in a fortnight's time, I'm walking up & down the stairs. Our flat is on the 21st floor so that's quite a few steps - despite the missing 4th, 13th and 14th floors. Floor-walking - or rather floor-racing - is an organized sport nowadays. When we were living in Bangkok, I once contemplated doing the annual Banyan Tree Hotel climb - 61 flights, 1,237 steps - but thought better of it. One guy did it in an astonishing 6:19 mins. I do my 226 steps in about the same time.