Ultramarathon Runner Sets Appalachian Trail Record: How He Did It


Elizabeth Goldbaum


Running that long with a heart rate elevated for that long of a time will cause some minor breakdown of heart tissue and heart muscle, which can cause stress on your heart, Emmett said. Jurek is an experienced ultra-runner and has won several elite ultramarathon races. It’s not so much a sport, as it is usually trying to break a record for a distance like that, she explained. And as more and more people run marathons, runners will likely continue to break records, Emmett said. There was a time when people doubted anyone would break a 4-minute mile, but runners did it, he added.


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