| 摘要 |
The apparatus includes a link rod (5) pivoted by its first end (6) on the equipment frame via a first joint (7) permitting a turning motion about a swing axis (8) perpendicular to the vertical middle plane of the seat. A head rest (9) is functionally connected to the link rod (5) so that the link rod participates in turning the head rest during an exercise movement while the person's head is leaning against the head rest. The apparatus also includes a multi-joint angular linkage mechanism (12), of which the link rod (5) constitutes a part. The multi-joint angular linkage mechanism (12) is connected to the head rest (9) so as to cause it to move during an exercise movement along a curved path that substantially coincides with the natural path of the neck. |
