| 摘要 |
This multi-abdominal exercise machine is comprised of at least one foot-bar arranged to move up and down a vertical angular path for exercising the abdominal muscles otherwise known as the rectus abdominis. It is used in the sitting position. A controlled weight resistance mechanism is connected to the said foot-bar for providing adjustable resistance to movement. A seat that tilts up and down during the exercising movements together with and on the same axis as the foot-bar. At least one adjustable hand bar is positioned to aid entry to and exit from the machine and to stabilize the user while exercising. A dynamic back support is positioned to provide a contra, massage and stability while exercising. A method for using the abdominal exerciser is comprised of sitting on the dynamic seat, putting one's feet onto the foot-bar and lifting the knees towards the stomach. The said lifting causes the abdominal muscles to exercise, which effect is enhanced as the said seat moves.
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