A power exerciser having a frame, variable power motor, strap, strap grips and sequencing control. The motor causes horizontal pull and vertical lift body movements through use of the straps. The duration and extent of each movement can be controlled by electro-mechanical sequencing. The sequencing control is connected to the power motor for providing a preselected time sequence of instructions to the power motor for limiting the lengths of extension and retraction of the straps. A unit is provided for presetting the sequencing control the power motor during an exercise program.