To keep things exciting on a treadmill, you have to mix it up, and one way to do so is to play with the incline. For folks with troublesome ankles and knees, going faster can make cranky joints even crankier. By adjusting the grade you can increase the difficulty of your workout without compromising the joints of your lower legs. If you walk on a treadmill, use that incline button to take yourself for a hilly hike with this walking workout.
On last week's episode of The Biggest Loser, trainer Bob Harper also reminded us all that increasing the incline means you burn more calories in less time, and who doesn't want to be more efficient in their workout? It's not only efficient, but turning up the grade also means you work more of your muscles and in a greater range of motion. Try cranking the incline on your next treadmill walk up to 10 — just to see how it feels.