Sublime

Not every “hard” workout has to be a killer session. You can sneak in more quality without going to the well by stopping at a track, on a hill, or an obstacle-free stretch of road toward the end of a run and doing a few up-tempo repeats between 200 and 800 meters.

SHORT INTERVAL RUNS A short interval run features repeated efforts of sixty to ninety seconds in Zone 5 separated by jogging recoveries in Zone 1. Short intervals enhance aerobic capacity, high-intensity fatigue resistance, and running economy.

When it comes to performance, ultrarunners depend on reliable running shoes that can sustain hundreds of miles while providing a comfortable ride.

runners run too hard. We log the majority of our miles at moderate- and high-intensity speeds, barely deigning to hit the low-intensity paces that are so essential to building an aerobic base. Yes, running slow takes longer. Yes, you may not feel quite as accomplished postrun. But go too hard too often and instead of seeing performance benefits, yo