实验前，研究人员先征得了迪士尼乐园同意，然后把肾模型藏到背包中坐了20次巨雷山过山车，期间还变换位置，从头部换到尾部。

After analyzing the location of those three kidney stones at the end of each ride, the researchers concluded that “findings support the anecdotal evidence that a ride on a moderate-intensity roller coaster could benefit some patients with small kidney stones,” Wartinger said. When the kidney stone was large, the initial position of the kidney stone affected the likelihood of its passing during the ride. But even those passed two in three times while the silicone model rode the thrill ride.

研究人员在每次坐完过山车后都会检查三颗肾结石的位置，得出了如下结论。沃汀格尔说，“我们实验所得验证了病人所述情况，坐中等刺激的过山车可以帮助一些患者排出小块结石。”大颗肾结石所处位置会影响坐过山车时结石排出的可能性，但排出结石时三次有两次是在硅胶模型经过刺激车程的时候。

“Many people in the United States probably live within a few hours’ drive of an amusement park containing a roller coaster with features capable of dislodging calyceal renal calculi,” wrote Wartinger and co-author Dr. Marc A. Mitchell of the Doctor’s Clinic in Poulsbo, Wash.

“很多美国人住在一家游乐园几小时车程内，这家游乐园有一辆过山车可以帮助人们排掉肾盏结石，”沃汀格尔和来自华盛顿州波尔斯波医生诊所的马克•米切尔一同写道。

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