Britney Spears has to be in peak physical condition when she performs in Las Vegas, and like scores of other celebrities from David Beckham and Scarlett Johansson to Hugh Jackman, she’s crazy about HIIT, the latest fitness trend. High-Intensity Interval Training, or HIIT for short, has been shown to deliver the same results as traditional workouts in just a fraction of the time, according to a 2001 study by Jeffrey W. King of East Tennessee State University.
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Keith Girard is Editor and Publisher of TheImproper, New York City’s cutting edge arts, entertainment pop culture and lifestyle Web magazine. Before that, he was editor-in-chief of Billboard magazine and a reporter for the Washington Post among other media positions.