How far you go in these long runs depends on your skill and experience, but Mackey says 45 minutes is a good starting point ...

You’re halfway through a run when your legs start feeling like cement blocks. Your breathing becomes heavy and ragged, and that nagging side stitch just won’t subside. Your goal was to make it 20 more ...

Lactate threshold workouts are one of the most important parts of a distance-running training plan. Putting your body through this type of exercise will help you run faster and run longer. “Lactate ...