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Title: | New methods for evaluating physical and thermal comfort properties of orthotic materials used in insoles for patients with diabetes | Authors: | Lo, WT Yick, KL Ng, SP Yip, J |
Issue Date: | 2014 | Source: | Journal of rehabilitation research and development, 2014, v. 51, no. 2, p. 311-324 | Abstract: | Orthotic insoles are commonly used in the treatment of the diabetic foot to prevent ulcerations. Choosing suitable insole material is vital for effective foot orthotic treatment. We examined seven types of orthotic materials. In consideration of the key requirements and end uses of orthotic insoles for the diabetic foot, including accommodation, cushioning, and control, we developed test methods for examining important physical properties, such as force reduction and compression properties, insole-skin friction, and shear properties, as well as thermal comfort properties of fabrication materials. A novel performance index that combines various material test results together was also proposed to quantify the overall performance of the insole materials. The investigation confirms that the insole-sock interface has a lower coefficient of friction and shearing stress than those of the insole-skin interface. It is also revealed that material brand and the corresponding density and cell volume, as well as thickness, are closely associated with the performance of moisture absorption and thermal comfort. On the basis of the proposed performance index, practitioners can better understand the properties and performance of various insole materials, thus prescribing suitable orthotic insoles for patients with diabetic foot. | Keywords: | Diabetic foot Friction Insole materials Performance index Physical properties Pressure redistribution Orthotic insoles Shearing Thermal comfort properties Ulceration |
Publisher: | U.S. Department of Veterans Affairs, Rehabilitation Research and Development Service | Journal: | Journal of rehabilitation research and development | ISSN: | 0748-7711 | DOI: | 10.1682/JRRD.2013.01.0012 | Rights: | Contents of the Journal of Rehabilitation Research and Development are within the public domain, with the exception of material specifically noted. The following publication Lo WT, Yick KL, Ng SP, Yip J. New methods for evaluat-ing physical and thermal comfort properties of orthotic materials used in insoles for patients with diabetes. J Reha-bil Res Dev. 2014;51(2):311–24 is available at http://dx.doi.org/10.1682/JRRD.2013.01.0012 |
Appears in Collections: | Journal/Magazine Article |
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