Methods, media and systems for responding to a Denial of Service attack are provided. Even when a high-strength workpiece is bent, it is possible to effectively obtain a product having excellent shape fixability and uniform hardness distribution at low costs for wide application for bending sophisticated automobile parts. If the patient moves, the laser devices, and therefore the contact locations, move. The mat material is therefore compressed within the outer tube by way of compression jaws, by compression rollers, andor by spinning.