In the video, the illusion of Jackson and his dancers' seemingly impossible forward lean was created using strings and wires.

在视频中，杰克逊和伴舞者看似不可能完成的前倾舞步是通过绳索实现的。

To accomplish the manoeuvre in live shows, a hitching mechanism which Jackson co-patented was built into the floor of the stage and the performers' shoes.

为了达到现场演出的奇幻效果，舞台地板上安装了一个系绳装置，可以和舞者的鞋连接起来。杰克逊本人也参与了这项专利发明。

This allowed them to perform the unlikely manoeuvre without needing to keep their centres of mass directly over their feet.

这个装置使舞者们无需将身体重心保持在脚部正上方，就可以前倾跳舞。

Ankle supports and cutouts in the heels of the shoes further helped the dancers maintain their posture as they defied gravity.

护踝和鞋跟上的保险装置进一步帮助舞者前倾时保持住身体姿势。

In the patent, it is stated that the illusion in the video was achieved by means of harnesses and cables which had to be connected to and disconnected from the floor by stagehands.

专利中说，视频中的前倾舞步是通过绳索与地面连接实现的，舞台工作人员负责完成连接和解绑的工作。

The findings were published in the Journal of Neurosurgery.

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