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Running offers much more than road racing! After a decade of writing about running, sports columnist Susan Lacke found herself in a serious running rut. The runners around her seemed to be thriving, setting goals, and having fun, but her own interest in running was lackluster. Seeking to reengage with the sport she once loved, Lacke spent a year exploring running in its many shapes and forms, taking on running challenges that scared her, pushed her, and downright embarrassed her.

This revolutionary training method has been embraced by elite runners - with extraordinary results - and now you can do it, too. Respected running and fitness expert Matt Fitzgerald explains how the 80/20 running program - in which you do 80 percent of runs at a lower intensity and just 20 percent at a higher intensity - is the best change runners of all abilities can make to improve their performance.