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Many talented sprinters run like gazelles, their feet barely kissing the track as they glide along. But not all great runners move like this. One of the most successful athletes of all time was a muscular runner named Emil Zatopek, nicknamed ‘The Czech Locomotive’ for his powerful, but not particularly graceful, running. Zatopek won five Olympic medals, four of them gold, and in 1952 he became the first, and so far only, runner to win the 5,000- and 10,000-meter races, and the marathon, at one Olympic Games (it was his first competitive marathon at that).… Read the rest “HIIT, the fitness hack”