Notes
Sub-zero I can handle, but the icy, drifty snow on the trails made an outdoor run pretty much impossible. For variety on the treadmill, I tried a couple of the programs; first the advanced, which indicated a ramp-up and ramp-down and asked for a maximum speed, but didn't tell me it would ramp up to 10% grade. After I had recovered from that, I tried the intervals program, but found the walking breaks too boring. After that, I just made up my own program. An hour is a long time on a treadmill.