| 摘要 |
The foot support plates (3,4) are so inclined in relation to the base (1) and to each other that their lower edge parts (5,5') are closer to each other than the upper edge parts (6,6'). The user can jump sideways between the foot supports with their feet widely apart, landing alternately on the one and then on the other of the foot supports at an anatomical optical landing angle to them. |
