| 摘要 |
An exercise device may comprise at least one joint. The at least one joint may comprise at least one first surface positioned adjacent to at least one second surface, the at least one second surface movable relative to the at least one first surface at at least one interface. A damping grease having a dynamic viscosity greater than about 100 Pascal seconds at standard temperature and pressure may be positioned at the at least one interface between the at least one first surface and the at least one second surface of the at least one joint. |
