Brilliant article by Dan Empfield @slowtwitch


There are no junk miles. Only junk theories. And one junk theory is the notion of junk miles. If you have unwanted miles you’re preparing for the junk heap, just haul them over to my house, I’ll take them off your hands.

The sorriest excuse for a training mythology yet foisted upon the endurance world may be the notion of “junk miles.”

Before I explain to you why this is an utterly nonsensical theme, let me state the one, narrow justification for this idea: In a single sport activity—particularly footracing—effort levels that keep a runner from producing subsequent quality workouts (when quality is asked for) are not helpful. Running easy runs too hard might turn important runs into “junk,” rather than allowing those important runs to serve their crucial purposes.

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