| 摘要 |
The present invention provides an exercise device comprising a frame; a rotatable axle on the frame; a crank for rotating the axle; and a counterforce assembly wheel connected to the axle for producing a static counterforce to rotation of the axle. The counterweight assembly includes a tank for reservoir and valves for varying the predetermined fluid level in the tank, and counterforce assembly wheel drivingly connected to the axle and rotatable about a non-vertical axis. The wheels have a plurality of troughs spaced uniformly around the axis. The troughs are positioned to pass through the tank as the wheel is rotatably driven by the crank, receive at least a portion of fluid in the tank, carry the received fluid above the predetermined fluid level and discharge the received fluid at a position above the predetermined fluid level.
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