An exercising apparatus designed to fit around a seat includes a frame that is adapted to be secured to a support. The frame is a U-shaped configuration with a lateral open area to receive the seat into the frame. One or more arms are coupled to the frame about one or more pivots. Further, the pivots allow a pivotal motion of each of the arms when a force is exerted thereto by a user. One or more resistance devices coupled to the frame and the arms, which provide resistance to the pivotal motion of each of the arms. The resistance devices, which may be a hydraulic or pneumatic piston and cylinder, may include a spring to bias the arms toward their initial, upright position.