Abstract: An exercise device includes a lower base and an upper platform with a support frame extending angularly therebetween. The angularly extending support frame extends between the lower base and the upper platform at an angle sufficient to allow for a user to position their body in a generally vertical plank position and hold their body in a straight line, angled relative to the floor between approximately 85 degrees to approximately 75 degrees. An exercise system may include a discrete upper platform and a discrete lower plank positioning platform, each of which are removably mountable to a support frame. The support frame, for example, may be a part of another exercise device or may be a discrete stand-alone support frame specifically configured for exercise system.