Let's face it: Treadmill workouts can sometimes feel ... Warm up for 5 minutes at 0% incline and a speed of 3 mph. 2. Increase the incline to 4% and maintain a speed of 3 to 3.5 mph for 20 minutes.
The range of inclines adds to this “real road”-like feel, simulating hilly terrain with its incline variability; the machine can go from a 12% grade to a -3 ... Treadmill 10, which can go from ...