I don't have a treadmill, but I do have a stationary bicycle. When I can't get up early to avoid the heat of the day, I use it as a cross-training day and do a challenge hill workout. I think I read (or was told) that you can substitute 10 minutes on a bike for every mile you would jog/run in an outdoor workout. So if I'm due for a 5 mile workout, I substitute a 50 minute bike workout - gets the cardio working good!
Teri - Lexington, KY
"We are what we repeatedly do. Excellence, then, is not an act, but a habit." - Aristotle
| Pounds lost: 34.5