Portable Slip-Testing Device for Measuring Shoe-Floor Coefficient of Friction

测量鞋底摩擦系数的便携式防滑测试装置

• 批准号: 9347380
• 负责人: Kurt E Beschorner
• 金额: $ 67.11万
• 依托单位: CROSSROADS CONSULTING, LLC
• 依托单位国家: 美国
• 财政年份: 2017
• 资助国家: 美国
• 起止时间: 2017-09-30 至 2019-05-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/9347380
• 关键词: Accidental Injury; Accidents; Adoption; Affect; Age; Agreement; Algorithms; Analysis of Variance; Businesses; Cells; Communities; Computer software; Consult; Custom; Data; Data Analyses; Data Collection; Development; Devices; Equilibrium; Equipment; Event; Floor; Freedom; Friction; Gait; Grant; Growth; Health; Health Professional; Human; Injury; Intervention; Kinetics; Laboratories; Lead; Licensing; Liquid substance; Logistic Regressions; Measurement; Measures; Mechanics; Methods; Motor; Occupational Health; Occupational injury; Outcome; Persons; Phase; Positioning Attribute; Randomized; Reproducibility; Research; Research Proposals; Risk; Safety; Sales; Savings; Sensitivity and Specificity; Services; Shoes; Site; Slide; Small Business Innovation Research Grant; Source; Speed; Surface; System; Technology; Testing; Time; Weight; Workplace; age group; base; cost; cost effective; design; economic outcome; falls; health economics; human data; human subject; improved; innovation; kinematics; motor control; portability; programs; prospective; research study

Project Summary: Slip and fall accidents are a major and growing source of occupational injuries. Increasing the available coefficient of friction (ACOF) between the shoe and floor surface is an effective method for reducing slipping risk. A significant need exists for portable, cost-effective shoe-floor ACOF testing equipment that is valid for predicting slip risk. Filling this need is likely to increase the use of rigorous slip-testing in the field, customizing footwear programs to a specific workplace, and selecting the most effective footwear or flooring intervention. The overall objective of this SBIR Phase II (R44) research study is to develop a portable ACOF testing device that predicts whether a person is likely to slip with sensitivity and specificity. The feasibility of this approach is supported by preliminary development of a biofidelic slip-testing device. The potential for our approach to improve the validity of slip-testing is supported by preliminary data that found that current testing methods do not reflect the kinematics of slipping and that the under-shoe testing condition are critical to the tester's ability to predict slips. The proposed research will be accomplished with four aims: Aim 1: Identify a set of testing conditions (force, sliding speed and shoe-floor angle profiles) that best predict slip events; Aim 2: Develop a slip-tester that is portable, inexpensive and biofidelic; Aim 3: Quantify reproducibility and repeatability of the device using an interlaboratory study; and Aim 4: Validate the ability of the portable testing device to predict slipping events. Aim 1 will use previously-collected human slipping data and the biofidelic slip-tester to identify testing kinematics and kinetics that best predict slips. Aim 2 will create a portable device that uses kinematic linkage systems to achieve the testing conditions identified in Aim 1 using stepper motors and calculates ACOF based on forces measured with a load cell. Aim 2 will also include a hypothesis (H2.1) that the developed device will yield ACOF values that are well correlated with the biofidelic slip-testing device developed in Phase 1. Aim 3 will perform a multiple site interlaboratory study to quantify repeatability of the device and reproducibility across operators and devices. Aim 3 will include a hypothesis (H3.1) that differences in ACOF values will not be observed across operators and devices. Aim 4 will quantify the validity of the device for prospectively predicting human slip propensity based on ACOF data collected with the device. Aim 4 includes a hypothesis (H4.1) that the device will predict slipping risk. This proposed research is expected to lead to a state-of-the art device that will promote interventions that reduce accidental injuries due to slipping. Commercializing this innovation will position Crossroads Consulting, LLC to reach new markets for both laboratory and field slip-testing, targeting safety and occupational health consultants, smaller shoe and flooring manufactures, as well as the research community. As a result, Crossroads Consulting, LLC is anticipated to grow in size and revenues through product sales and service agreements.!

项目概要： 滑倒和跌倒事故是职业伤害的一个主要且日益增长的原因。增加可用的 鞋与地板表面之间的摩擦系数（ACOF）是减少打滑的有效方法 风险。迫切需要便携式、经济高效的鞋底 ACOF 测试设备，该设备适用于 预测滑倒风险。满足这一需求可能会增加现场严格滑动测试的使用，定制 针对特定工作场所的鞋类计划，并选择最有效的鞋类或地板干预措施。 SBIR II 期 (R44) 研究的总体目标是开发便携式 ACOF 测试设备 它以敏感性和特异性来预测一个人是否有可能滑倒。该方法的可行性是 得到了生物仿真滑动测试装置初步开发的支持。我们的方法的潜力 初步数据支持提高滑动测试的有效性，这些数据发现当前的测试方法确实 不能反映打滑的运动学，鞋内测试条件对于测试人员的能力至关重要 来预测滑倒。拟议的研究将实现四个目标： 目标 1：确定一组测试 最能预测滑动事件的条件（力、滑动速度和鞋底角度分布）；目标 2：开发 便携式、廉价且符合生物逼真度的滑动测试仪；目标 3：量化实验的再现性和重复性 使用实验室间研究的设备；目标 4：验证便携式测试设备预测的能力 滑倒事件。目标 1 将使用之前收集的人体滑倒数据和生物逼真滑倒测试仪来识别 测试最能预测滑移的运动学和动力学。目标 2 将创建一个使用运动学的便携式设备 使用步进电机实现目标 1 中确定的测试条件的联动系统并计算 ACOF 基于用称重传感器测量的力。目标 2 还将包括一个假设 (H2.1)： 开发的设备将产生与生物逼真滑动测试设备密切相关的 ACOF 值 在第一阶段开发。目标 3 将进行多站点实验室间研究，以量化 设备以及跨操作员和设备的再现性。目标 3 将包括一个假设 (H3.1)，即差异 ACOF 值不会跨运营商和设备观察到。目标 4 将量化设备的有效性 根据设备收集的 ACOF 数据前瞻性预测人类滑倒倾向。目标 4 包括设备将预测滑倒风险的假设 (H4.1)。这项拟议的研究预计将 开发出一种最先进的设备，该设备将促进减少因滑倒造成的意外伤害的干预措施。 这项创新的商业化将使 Crossroads Consulting, LLC 能够为双方开拓新市场 实验室和现场防滑测试，针对安全和职业健康顾问、较小的鞋子和地板 制造商以及研究界。因此，Crossroads Consulting, LLC 预计将 通过产品销售和服务协议扩大规模和收入。！