An observational ergonomic tool for assessing the worn condition of slip-resistant shoes
An observational ergonomic tool for assessing the worn condition of slip-resistant shoes
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DOI：
10.1016/j.apergo.2020.103140
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发表时间：
2020-10-01
影响因子：
3.2
通讯作者：
Redfern, Mark S.
中科院分区：
文献类型：
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作者：
Beschorner, Kurt E.;Siegel, Johanna L.;Redfern, Mark S.
众所周知，穿旧的鞋子会增加滑倒的风险，这是工作场所受伤的常见原因。然而，更换鞋子的指导方针并没有得到很好的发展。最近的实验和润滑理论表明，磨损区域的大小是鞋胎面排液能力的重要因素，因此也是鞋下摩擦力的重要因素。本研究评价了一种简单的测试，用于比较磨损区域相对于常见物体（AAA和AA电池）的尺寸，作为确定鞋更换的方法。这项研究包括三个组成部分，涉及防滑鞋：实验#1：纵向，机械，加速磨损实验;实验#2：纵向实验，其中相同的鞋进行测试后，每个月的工人使用;和实验#3：一个横截面实验，暴露参与者在一个光滑的条件下，而穿上自己穿的鞋。在组合测试的结果（失败/通过）之间比较COF（实验#1和#2）;鞋下流体压力（所有实验）;和打滑严重度（实验#3）。较大的流体压力，较低的摩擦系数，和更严重的滑动观察到的鞋，电池测试失败相比，那些通过测试。这种方法为评估防滑鞋的摩擦损失和防滑风险的增加提供了希望。
Worn shoes are known to contribute to slip-and-fall risk, a common cause of workplace injuries. However, guidelines for replacing shoes are not well developed. Recent experiments and lubrication theory suggest that the size of the worn region is an important contributor to the shoe tread's ability to drain fluid and therefore the under-shoe friction. This study evaluated a simple test for comparing the size of the worn region relative to a common object (AAA and AA battery) as a means of determining shoe replacement. This study consisted of three components involving slip-resistant shoes: Experiment #1: a longitudinal, mechanical, accelerated wear experiment; Experiment #2: a longitudinal experiment where the same shoes were tested after each month of worker use; and Experiment #3: a cross-sectional experiment that exposed participants to a slippery condition, while donning their own worn shoes. The COF (Experiments #1 and #2); under-shoe fluid pressure (all experiments); and slip severity (Experiment #3) were compared across outcomes (fail/pass) of the battery tests. Larger fluid pressures, lower coefficient of friction, and more severe slips were observed for shoes that failed the battery tests compared with those passing the tests. This method offers promise for assessing loss in friction and an increase in slip risk for slip-resistant shoes.