Influence of wet surfaces and fall height on pediatric injury risk in feet-first freefalls as predicted using a test dummy
Influence of wet surfaces and fall height on pediatric injury risk in feet-first freefalls as predicted using a test dummy
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DOI：
10.1016/j.medengphy.2004.09.005
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发表时间：
2005-01-01
影响因子：
2.2
通讯作者：
Vogeley, E
中科院分区：
文献类型：
--
作者：
Deemer, E;Bertocci, G;Vogeley, E
简介：福尔斯是儿童发病和死亡的主要原因，但在虐待儿童方面也有虚假报告。因此，它是感兴趣的，以了解这些因素，这可能会导致更高的可能性受伤的脚第一freefall.Methods：我们使用实验室自由落体实验和3岁的混合III拟人测试假人（ATD），以评估头部和股骨受伤的风险。从三个坠落高度（22英寸、35英寸和47英寸）使用湿和干油毡冲击表面。结果：对于给定的坠落高度，干燥表面与潮湿表面相比具有更高的头部伤害标准（HIC）值。下降高度的变化22 - 47英寸。并没有显着影响HIC值的福尔斯下降到任何一个表面。一般来说，压缩和弯曲股骨负荷增加显着湿相比，干lineclides.Conclusions：在模拟脚第一自由落体实验高达47英寸。使用一个3岁的试验假人，发现接触型头部损伤和股骨骨折的风险较低。2然而，坠落高度和地面条件都会影响股骨载荷和头部损伤的测量。未来的努力应该探索与自由落体角加速度相关的头部损伤风险。(C)2004年IPEM。由爱思唯尔有限公司出版。保留所有权利。
Introduction: Falls are a major cause of morbidity and mortality in children, but are also reported falsely in child abuse. Therefore, it is of interest to understand those factors which may lead to a higher likelihood of injury in a feet-first freefall.Methods: We used laboratory freefall experiments and a 3-year-old Hybrid III anthropomorphic test dummy (ATD) to assess head and femur injury risk. Wet and dry linoleum impact surfaces were used from three fall heights: 22, 35 and 47 in.Results: For a given fall height, dry surfaces were associated with higher head injury criteria (HIC) values than wet surfaces. Changes in fall height 22-47 in. did not significantly affect HIC values for falls onto either surface. Generally, compressive and bending femur loading increased significantly for wet as compared to dry linoleum.Conclusions: In simulated feet first freefall experiments up to 47 in. using a 3-year-old test dummy, a low risk of contact type head injury and femur fracture was found. However, both fall height and surface conditions influenced femur loading and head injury measures. Future efforts should explore the risk of head injury associated with angular acceleration in freefalls. (C) 2004 IPEM. Published by Elsevier Ltd. All rights reserved.