| 摘要 |
A waist/back exerciser including a leg frame assembly, a swinging rack and an adjustment unit. The leg frame assembly includes a front frame body, a rear frame body and a transverse beam connected therebetween to form a firm pattern of leg frame assembly. A slide seat of the adjustment unit is slidably fitted on the transverse beam. The adjustment unit is connected to the swinging rack via a link to form a longer force resistant arm, whereby the swinging rack and the adjustment unit are more firmly connected with each other.
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