Abstract: A resistance apparatus for use in performing squat exercises, in which a belt-type device is worn by a person for providing a resistance connection between the person's legs. The resistance apparatus includes a chain, which is connectable at one end to a connection arrangement associated with the belt-type device. The other end of the chain is connected to a stack of weights or any other satisfactory resistance-providing device, with the chain being trained around a series of pulleys. A tracking arrangement provides front-to-rear movement of the chain at a point below the connection of the chain to the belt-type device for maintaining the resistance directly below the person's center of gravity as the person moves in a front-to-rear direction during performance of a squat exercise.

Abstract: Exercise machine having a base comprising a horizontally extending platform and an upstanding post. A swing arm comprising has a pair of arms and a crossbar is pivotally mounted on the post for movement about a horizontally extending axis, with the crossbar extending in a direction generally parallel to the axis. A first pair of pulleys are mounted on the base in alignment with the horizontally extending axis, and a second pair of pulleys are mounted on the crossbar. A pair of cables are trained about the pulleys, grips are connected to the cables near the second pulleys, and resistance elements are connected to the cables for yieldably resisting movement of the cables when a pull is exerted thereon. A pair of telescoping arms extend between the base and the crossbar for holding the crossbar and the grips at different heights above the platform.

Abstract: Exercise apparatus in which the position of a cable which is drawn against a resistance source can be changed to permit performing a variety of different exercises. A handle or other unit which is attached to the cable is carried by a trolley to various positions along a track which extends along a curved surface of a housing and defines a prescribed curved path. Once the trolley is set in a position along the track for a particular exercise, the cable is drawn against the resistance source.