Running Magazine

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.

Today, women make up more than half of the nation’s runners. And, as more and more women have hit the roads and trails and laced up for 5-Ks and marathons, the research showing the effects of running on the female body has grown significantly, too. The truth is that even though the gap between men's and women's world best times is shrinking, the latest scientific evidence shows that running is a dramatically different experience for women than men - physically, mentally, and emotionally.

The sport of running is ever changing, be it the shoes we wear or the goals we set, the training methods we use or the role models we emulate. But there is one constant: For 40 years, Runner’s World magazine has been recognized worldwide as the leading authority on running. Now the collective wisdom of the most savvy running writers, coaches, and editors can be found in Runner’s World Complete Book of Running.