Abstract: An exercise machine may comprise a frame and a weight stack. The weight stack may be positioned within a portion of the frame. The exercise machine may further comprise a weighted cable having a first end configured for selective attachment to weight plates of the weight stack, a guide track defining a path, and a movable pulley assembly slidably coupled to the guide track. A positioning mechanism may be coupled to the movable pulley assembly and configured to move and position the movable pulley assembly along the path defined by the guide track. Additionally, the weighted cable may be routed through the movable pulley assembly.