Abstract: Resistance in a rowing exerciser may be adjusted by varying the distance between a magnet set and a magnetically conductive flywheel that is attached to a second wheel having a cord wound there around and connected to a handle which is pulled by a user. A spiral spring engaged with the second wheel causes retraction of the cord after it is extended by the pulling action.

Abstract: A rebound-type exercise device is provided which allows an individual to perform a sit and bounce exercises that, among other things, stimulate the lymphatic circulation. The exercise device includes a support frame which supports a seat assembly by means of four springs. The support frame includes a pair of laterally spaced apart side support frames which are interconnected by a head tube. Each side support frame includes a generally horizontal ground-engaging base tube, a rearwardly disposed, generally vertical rear support tube extending upwardly from the base tube, and a generally L-shaped arm which interconnects a front portion of the base tube with the upper end of the rear support tube.

Abstract: A pair of parallel bars forming part of a rectangular frame, mounted for rotation relative to two end handles and having locking pins to prevent rotation, adapted to be used for gymnastic exercises and to be carried by two ice skaters.