US Patent 7534197 Structural mode door support of exercise equipment

The method of human body suspension, that includes providing an upright door, and a support body clamped to the door; straddling the door by extending human legs generally transversely at opposite sides of the door; providing grips operatively connected to the support body to project outwardly at opposite sides of the door, and manually grasping the grips to exert force acting to suspend the human torso and legs which remain straddling the door and extending transversely during suspending of the torso and legs.