Abstract: An application for an exercise device includes a belt member adapted to be worn around a mid-section of a user and at least one back strap, a first end of each back strap connected to a rear section of the belt member. Two resilient members are provided, a first end of each resilient member is affixed to a distal end of the back straps and two handles are attached to a distal end of each resilient member. The two handles are configured to accommodate a hand of the user while the user, wearing the exercise device, alternately or concurrently pushes against the force of the resilient members.

Abstract: A curved plate is attached to the back of a couch together with a pair of inverted U-shaped bars projecting forwardly over a front surface of an upright cushion of the couch. A tension cord is attached at a bottom end to a tension clamp under the couch and at a top end to a bracket mounted to the curved plate. A push rod turns the tension clamp to remove tension on the tension cord and allow either shortening or lengthening of the tension cord. A body harness is attached via a retractable elastic cord to a ring on each of inverted U-shaped bars. An exerciser bends forward to move the elastic cords and cause resistance against abdominal and associated mid-section muscles.

Abstract: An exercise device to be used by a person sitting in a seat includes an adjustable length strap with a friction buckle for firm attachment to a seat of variable sizes. A chest strap with an adjustable length fits around the chest of an exerciser and is connected to the seat strap via a pair of self-retracting elastic cords. A pair of adjustable length shoulder straps clamp on the chest strap to inhibit its downward movement when the exerciser moves forwardly against the tension of the elastic cords and/or tightens the stomach muscles when performing an exercise.