Abstract: Method and apparatus therefor are disclosed for exercising the buttock and thigh muscles. The apparatus (20) has a spring (40) disposed to yieldingly support a seat member (24) between first and second positions 24a, 24b) above a base 42 as the user urges the seat member between the aforesaid positions.

Abstract: An abdominal exerciser for use with a belt to encircle an abdomen. A planar contacting plate rests on the abdomen. A retainer plate spaced from the contacting plate retains the belt in a relatively fixed location away from the skin of the abdomen. A coiled compression spring biases the retainer plate and belt away from the contacting plate. Exercise of the abdominal muscles is achieved by alternatively tightening the muscles to push the contacting plate toward the retainer plate and then relaxing the muscles allowing the spring to push the contacting plate away from the retainer plate. In an alternative embodiment, a weight is attached to the contacting plate by a second belt to stretch the muscles in the relaxed state and to require greater effort when the contacting plate is pushed toward the retainer plate.