| 摘要 |
The high-speed walking devices can find application for training in heel-and-toe walk without making any movement forward. They consist of a step (1), racks (2), driving gears (3) mounted on an axle (4) to which axle (4) travelling wheels (5) are fixed and a front axle (6) to which two small wheels (7) are freely inserted. Between the wheels (7) a spiral spring (8) is locked pulling the axle (4) by means of bushing (9) mounted on the axle (4).
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