| 摘要 |
An upper body exercising apparatus 10 including a first 12 and second 13 housing unit mounted for rotation relative to one another and including elongated arm members 22 and 33 wherein the housing units 12 and 13 are further provided with a chain drive unit 14 and an adjustable tension unit 15 for selectively positioning the first 12 and second 13 housing units relative to one another, and for varying the resistance to displacement from the selected position of the housing units 12 13.
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