Abstract: An exercise machine has seat and back rest portions which are hinged to each other and independently pivotally supported on a support frame. The seat and the back rest portions are initially in a horizontal position to enable the user to exercise in a lying down position. The seat has an adjuster by means of which it can be angularly lowered to any one of a number of positions with the rear portion lowered more than the front portion. The front portion of the back rest which is hinged to the rear of the seat is lowered along with the seat to bring the back rest to the selected upwardly angulated position. A pair of lever arms are connected together at their inner ends and extend angularly outwardly from each other. Weights are connected to the inner ends and handles are connected to the outer ends for grasping by the user. Height adjusters are provided on the handles and arms to enable adjustment for persons of different sizes.