5 Treadmill Workouts
“Never get locked into the same routine, otherwise your body is going to adapt pretty quickly and you won’t get as much out of it.”
I’d say that ideology should apply to your entire workout regimen (not just running). The article continues and gives 5 treadmill workout routines to help you run faster or motivate you to add hills. It’s a cool read for those days when you have no choice but to run indoors.