The present invention is directed to new methods of determining elongation, tension and applied pressure of elastic bandages comprising tension indicators. In one embodiment, a computer-implemented method of detecting elongation of an elastic bandage (e.g. on a mobile computing device having a processor and graphical user interface) is described. The method comprises receiving image data that includes a digital photograph of an elongated tension indicator of an elastic bandage； analyzing the image data to determine elongation of the elastic bandage by comparing geometric features of the elongated tension indicator to model geometric features that define a predetermined elongation state (such as an unelongated state)； and providing output indicia associated with the determined elongation. Also described are various articles, some of which are intermediate articles of the methods described herein. Such articles include non-transient computer readable medium, a three-dimensional member comprising at least one layer of certain elastic bandages. In one embodiment, the elastic bandage comprises a tension indicator and a computer readable code.
