Treadmill = TM = Torture Machine

I do the TM for speed workouts. Thus the torture! So I can do speed work, intervals, etc. at a set pace. But it is HOT, boring & torturous. (OK, my opinion).
Occassionally use it for bad weather...but I live in Florida, so it is rare.

With my Gamin I can do some interval speed work outside, if the intervals ar the same time--but have to keep a close eye on the watch (for pace) and find myself not steady.