| 摘要 |
An exercise device wherein an electrically controlled system (100) provides variable resistance to a cable that is opposed by the operator pulling on an extending cable (6a and 6b) and associated bar (7). Rotating knob (38) allows an operator to vary the force necessary to extend the cable, and control switch (31) establishes the mode of excercise as either isotonic or isometric. As the cable is extended in the isotonic mode a continual force acts to keep the cord taut such that the cable is retracted when there exists slack in the line. |
