| 摘要 |
<p>The gymnastic implement is so conformed to train all the body's muscles, the resistance to the muscular action being represented by the user's weight. The implement substantially comprises a board (1) of suitable length for receiving the user's body in extended position and a frame member (2) otherwise associable to said board and forming in its whole a lever system. More particularly, such a frame member comprises a first pair of parallel rods (6) lying on a common plane, a second pair of parallel rods (8) also lying on a common plane but inclined relative to the plane of said first pair of rods and elements (7, 9) interconnecting the rods of said first and second pairs transversely arranged relative to said board (1) and forming the fulcrum and resistance of said lever system depending on the desired training to be carried out by the user.</p> |
