And if I continue that motion beyond my normal anatomical positioning, and it's somewhat dangerous, that is called hyperextension.

如果我继续这个动作超出了我正常的解剖位置，这有点危险，这叫做过度伸展。

You can pad these if you need to here. If this is too much extension, hyperextension in the knees, you can put a little blanket here between the knees, a little cushion.

如果你需要的话可以在这里垫些东西。如果你感觉膝盖过度伸展，你可以在膝盖之间放一个小毯子，一个小垫子。