Is Taylor Swift an elite endurance athlete? On the Eras tour, the singer-songwriter is performing three nights a week, singing and dancing for as long as it takes most people to run a marathon. When ultrarunner and Outside editor Zoë Rom read about the six-month fitness program Swift used to prepare for the tour, she decided to give it a try—and quickly learned that being a pop star is harder than it looks. But training like one may change the way you think about fitness.Check out trainer Brookelynn Miller’s Couch to Eras Tour training plan here:Couch to Eras Tour Training PlanCouch2Eras Strava Group

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