translation.en: My colleagues actually went on to test this limitation, by increasing the moment of inertia of a student, so they had a tail, and running them through and obstacle course, and found a decrement in performance, like you'd predict.
translation.zh: 我的同事还专门测试了这个限制。 通过增加一位学生的转动惯量，模拟尾巴的影响。 学生在障碍跑时 机动性明显地降低了。 正如你所预料的。