| 摘要 |
An exercise device is releasably attached to a wall adjacent to a doorway and includes a spring-biased arcuate lever arm having a resilient pad on one end. A user leans against the pad and moves the lever arm against the force of the spring to exercise his or her abdominal muscles, oblique muscles and/or lower back muscles and/or neck muscles by using the device with the forehead, sides and back of head. This builds strength in the front neck muscles, the sides of the neck and the traps as well as the extensor muscles of the neck that hold the head up. |
