| 摘要 |
An exercise apparatus combines weight and pneumatic resistance to provide a user with options to work against either or both types of resistances. In one mode, the exercise apparatus includes a user interface, such as, for example, a weight-lifting bar, that a user can move either toward or away from a stationary portion of the user's body. A weight (e.g., a free weight plate) can be selectively coupled to the user interface. A pneumatic resistance device can also be selectively coupled to the user interface independent of whether the user interface is also coupled to the weight. The pneumatic resistance device includes at least one valve to regulate the amount of resistance that the pneumatic resistance device applies to oppose movement of the user interface in at least one direction. At least one actuator may be provided for controlling the at least one valve, the actuator being configured to be manipulated by the user while the user is in an exercise position. The apparatus can also include a trolley that moves relative to a track. The trolley can move with the user interface so as to permit various positions of the user interface relative to the pneumatic resistance device.
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