run faster

Each step drains a bit more life from your body, but you dig deep, search for motivation, and inch closer to the finish. Then, that Kenny G track you've been meaning to take off your iPod starts up, or worse, Pandora goes to a commercial. Don't let this happen.
Don't want to run outside? No problem. Try this treadmill hill workout from CLAY Health Club + Spa. It will build glute and
The reason why? To assess speed, the brain compares the relative speed of objects in both extremes of distance (think: the
Run 600 meters (1.5 laps) at an 85 percent effort Related posts: Run 800 meters (2 laps) at an 85 percent effort Run 400