| 摘要 |
<p>Invention refers to the field of sports, specifically, to extreme sports and entertainment. Invention aims at extending both the range of tricks performed by athletes and the variety of entertainment, and at prolonging the skateboard application season. The essence of invention is that in addition to traditional wooden board with one or both turned up ends and rolling wheels under the board, the gap between them is equipped with a sliding fixative crank having a stiffly flexible handle. Complex skateboard is intended for entertainment, for strengthening legs, arms, back muscles of athletes, for body coordination and training the vestibular apparatus.</p> |
