Tennant Liana M, Fok Donna J, Kingston David C, Winberg Taylor B, Parkinson Rob J, Laing Andrew C, Callaghan Jack P
Department of Kinesiology, Faculty of Health, University of Waterloo, Waterloo, Ontario, Canada.
Department of Biomechanics, College of Education, Health, and Human Sciences, University of Nebraska Omaha, Omaha, NE, United States.
Appl Ergon. 2021 Apr;92:103318. doi: 10.1016/j.apergo.2020.103318. Epub 2020 Dec 5.
Minimal footwear has become more ubiquitous; however, it may increase slip severity. This study specifically examined the slipping kinematics of flip-flop sandals. Invoked slips from standing were evaluated in dry and wet tile, and a unique wet footbed + wet tile condition, with 40, 50, and 60% bodyweight (BW) committed to the slipping foot. Water did not alter peak slip velocity (PV) at 40% BW, but PV increased with greater slip-foot force on wet tile by ~1 m/s. Interestingly, when floor-contact was lost during the slip, the flip-flops could come off the heel. This decoupling occurred most often when both the tile and footbed were either dry or wet. Given that both decoupling and greater PV were observed on wet tile, slipping in flip-flops under wet conditions may have more serious consequences. The results highlight that slips may occur at both the foot-flip-flop, and flip-flop-tile interfaces.
极简鞋履越来越普遍；然而，它可能会增加滑倒的严重程度。本研究专门考察了人字拖凉鞋的滑倒运动学。在干燥和潮湿的瓷砖上，以及独特的湿鞋垫 + 湿瓷砖条件下，评估了站立时引发的滑倒情况，滑倒的脚施加40%、50%和60%体重（BW）的力。在40%体重力时，水不会改变峰值滑速（PV），但在潮湿瓷砖上，随着滑倒脚施加的力增大，峰值滑速增加约1米/秒。有趣的是，滑倒过程中失去与地面接触时，人字拖可能会从脚跟脱落。这种分离最常发生在瓷砖和鞋垫均干燥或均潮湿的情况下。鉴于在潮湿瓷砖上既观察到了分离又观察到了更高的峰值滑速，在潮湿条件下穿着人字拖滑倒可能会产生更严重的后果。研究结果突出表明，滑倒可能发生在脚与人字拖以及人字拖与瓷砖的界面处。
