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.