| 摘要 |
An exercising apparatus includes a base having two upright handles on two opposite sides thereof and a ball bearing, a rotary table supported on the ball bearing and moved to turn thereon and having an upright support in the center, a foot board balanced on the upright support and moved to turn the rotary table on the ball bearing of the base, and tensile elements bilaterally connected between the rotary table and the foot board for permitting the foot board to be alternatively oscillated back and forth.
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