english: What they found is that if you start running the marathon at age 19, you'll get progressively faster, year by year, until you reach your peak at age 27.
non_english: Pronašli su da, ukoliko počnete da trčite maraton u 19. godini, bićete sve brži i brži, godinu za godinom, dok ne dosegnete maksimum u 27. godini.