80/20 Running

Najportal.sk / Ostatné /

14.73 €

TRAIN EASIER TO RUN FASTER 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… celá špecifikácia