| 摘要 |
An exerciser comprising a pair of arms pivotably connected to each other and a fluid pump connected to the arms. This pump comprises a cylinder pivotably connected to one arm and a rod pivotably connected to the other arm. This rod carries a piston projecting into the aforementioned cylinder. The closed end of the piston is provided with at least one stop cock constituting an aperture of restricted cross-sectional area. The exerciser also includes a fluid reservoir located within one of the arms and communicating with the aforesaid aperture.
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