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The 3 cylinders used were made of knitted cotton fabric and were each 10-cm long with an 8-cm circumference. Effects of (1) auxetic (star-shaped) and (2) mesh incisions, and (3) no incisions were assessed. (a) Resting state, (b) traction until a length increase of 40% is reached, and (c) an insertion of an inflated balloon inside cylinders with both auxetic and mesh incisions assessed under the same pressure. The control cylinder (3) was not pulled or inflated due to its inelasticity.
