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： 滑倒和坠落事故是职业伤害的主要来源，而且越来越多。增加可用 鞋与地面之间的摩擦系数（ACOF）是减少滑动的有效方法 风险存在对便携式、成本有效的鞋地板ACOF测试设备的显著需求，所述鞋地板ACOF测试设备有效用于 预测滑动风险。满足这一需求可能会增加在现场使用严格的滑动测试，定制 鞋类方案，以特定的工作场所，并选择最有效的鞋类或地板干预。 本SBIR第II阶段（R44）研究的总体目标是开发一种便携式ACOF测试设备 它能敏感而特异地预测一个人是否会滑倒。这种方法的可行性是 通过初步开发的生物活性滑动测试装置提供支持。我们的方法的潜力， 改进滑动测试的有效性得到了初步数据的支持，这些数据发现， 不能反映打滑的运动学，鞋下测试条件对测试者的能力至关重要 来预测滑倒本研究的目标有四个：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轮廓）;目标2：制定 滑动测试仪，是便携式的，廉价的和生物;目标3：量化的再现性和重复性的 目标4：验证便携式测试设备预测 下滑事件目标1将使用以前收集的人类滑动数据和生物力学滑动测试仪来识别 测试最能预测滑动的运动学和动力学。Aim 2将创建一个便携式设备， 联动系统，以实现目标1中确定的测试条件，使用步进电机和计算 基于测力传感器测得的力的ACOF。目标2还将包括一个假设（H2.1），即 开发的设备将产生ACOF值，以及与生物摩擦学滑动测试设备相关 在第一阶段开发。Aim 3将进行一项多中心实验室间研究，以量化 设备和操作员和设备之间的再现性。目标3将包括一个假设（H3.1），即 在操作员和设备之间将不会观察到ACOF值。目标4将量化器械的有效性 用于基于使用该设备收集的ACOF数据前瞻性地预测人体滑倒倾向。目标4 包括器械将预测滑动风险的假设（H4.1）。这项研究预计将 从而产生了一种最先进的装置，该装置将促进减少由于滑动而造成的意外伤害的干预。 商业化这一创新将定位十字路口咨询，有限责任公司，以达到新的市场，为双方 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。