StepMeter Reconstruction and Slip Resistance Testing Public

Floor slip resistance is routinely evaluated using walkway tribometers. These devices use samples of the floor surface and outsole materials to measure utilized friction, either in a laboratory setting or in situ. When artificial outsole materials are being evaluated, it is feasible to get multiple samples of the material for testing. But difficulties arise when evaluating barefoot slip resistance. At present, there is no recognized surrogate for barefoot human skin. In order to develop such a surrogate, we wish to evaluate a diverse population of human subjects in vivo, to accurately determine the intersubject variability in skin slip resistance. A StepMeter was developed to measure barefoot skin slip resistance in vivo on seated human subjects. This device, while providing some initial data, proved difficult to use, uncomfortable for both the subjects and the researchers, and repeatability of testing has been questioned. The purpose of this project is to re-design the StepMeter to improve subject testing throughput and reliability.


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