| 摘要 |
<p>Apparatus is described to assist with sit-up exercises. A base (1) carries a U-shaped channel (defined by walls 2, 3) which can receive a door. The end of the base remote from the channel carries a thin cylindrical ring section (4) which may, if desired, be padded inside and which receives the ankle or calf of a user. Because the base is hooked under the door by the channel formed of walls (2, 3), the user can then do sit-up exercises as desired.</p> |
