蒂内提特别提到，“他们每次练习时，并非一定要教练陪在身边。”

"The teacher wasn't necessarily there with them every time they did the exercise," Tinetti notes.

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为了降低这些老年人摔跤的风险，蒂内提使用了多种方法，包括请运动教练登门教授平衡练习法。

To reduce these seniors' risk of falling, Tinetti used multiple methods, including having an exercise teacher go to a person's home and teach balance exercises.

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波鸿-鲁尔大学的玛蒂娜。哈瓦内提教授打个比方：就像是迪斯科跳着跳着成了小步舞。正是因为这种律动防止水分子结冰。

Put another way: "the disco dance becomes a minuet, " says Dr. Martina Havenity of Ruhr-University Bochum. The change prevents ice from forming.

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