| 摘要 |
<p>The device has a flexible belt (2), which constricts the abdomen by exerting traction force. The belt can be moved by an user through active muscle strain. An attachment belt (3) is provided for detachable provision of traction power belt at a backrest of a chair, car seat or seating furniture. The length of the traction power belt is adjustable. The traction power belt partly encloses waist of a person.</p> |
