Some runners dread hills and actively avoid them, which if you live in the SF Bay Area can be a rather difficult task. But by skipping the incline you miss the opportunity to build both speed and stamina while giving your booty a little extra kicking. Plus running hills makes the flats feel like a breeze. If you're not into running outside, you can still run hills with this rolling hill treadmill.
As always, feel free to play around with the elements — speed, incline, and duration — to make the workout suit your needs. Since this is a hill workout, I do think it better to slow your pace but keep the incline up.
Click here for a photo-free printable version to take to the gym. Let us know how your climbing goes.