| 摘要 |
In the upper (1) of a shoe, pressure chambers (3, 4, 5) are provided which can be inflated by a gas bottle (6) when an extension sensor (7) signals the risk of a twisting or spraining of the foot. The inflation of the pressure chambers (3, 4, 5) takes place so rapidly that a collateral fibular ligament injury is precluded.
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