| 摘要 |
<p>The device has frontal and dorsal arms (8, 10) driven in a horizontal position or retracted position and fixed on a fixation device in manner to bring the arms at height of user (1). Each arm has a grip bar (24) rotating around an axis of frontal and dorsal protection bars (9, 11), where adjustment angle (alpha) of the bar (24) measured relative to a horizontal plane is of 90 degrees towards bottom and of 45 degrees towards top such that the bar (24) of the dorsal arm supports the user below a waist and the bar (24) of the frontal arm allows the user to support forearm.</p> |
