runnersworld.com
This article has been excerpted and adapted from Run Fast: How to Beat Your Best Time — Every Time, by Hal Higdon.
They are disparagingly called “junk miles”—those slow, extra miles done on our easy days or in second workouts, sometimes to inflate training mileage, so that we can say we ran 25 miles last week rather than 15, or 50 rather than 45. I certainly plead guilty. During my peak years, I ran twice daily, often dragging myself through extra workouts so I could hit 100 miles a week, an imp…
about 8 years ago