| 摘要 |
An exercise device comprising a variable speed rotary driving device, an adjustable speed control for the rotary driving device, an exercise link offering resistance to motion of the user, and a hydraulic coupling connecting the variable speed rotary driving device to a torque multiplier. The exercise device operates such that torque is transmitted to the exercise link to impart resistance to motion of the link, and the resistance to motion is variable and also a consistent function of the speed and direction of the link and of the variable speed rotary driving device.
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