A stage assembly for positioning a work piece includes a stage, a heat transfer region, a stage mover assembly, and an environmental system. The patterning device patterns the radiation beam. The stretching apparatus is used to stretch the muscles of the lower and upper body including the legs, lower back and upper body. Related methods and systems are also discussed. Thus, a device and method is realized whereby distribution of contents over a network and use thereof is enabled without detracting from safety and user convenience. A mask may be used to remove excess material from areas other than the predetermined locations.