"My schedule is set to half days (i.e. seeing patients or in the hospital or in my office). On my office half days I usually can do 2-3 hours on it (I have to leave for meetings at time, but usually I get a good 2 hours on it and ideally more). about 3 weeks - at first my feet and hips hurt from standing (I not only added the trekdesk but chose to stand up at the nurse's station doing computer work instead of sitting when I had to be there and not in my office). Then I started to look foward to walking on the trekdesk and it helped me avoid the "nap" attack that happens at 3pm."