The Importance of the Scalp in Head Impact Kinematics

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Title: The Importance of the Scalp in Head Impact Kinematics
Authors: Trotta, Antonia
Zouzias, Dimitris
De Bruyne, Guido
Ní Annaidh, Aisling
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Date: Jun-2018
Abstract: The best way to reduce the risk of head injury (up to 69% reduction) is to wear a helmet. In recent years, the improvement of helmet standard tests focused on reproducing realistic impact conditions and including the effect of rotational acceleration. However, less importance has been given to the development of a realistic headform. The goal of this work was to evaluate the role of scalp tissue in head impact kinematics; both with respect to its mechanical properties and with respect to its sliding properties. An EN960 and HIII headform were subjected to linear and oblique impacts, respectively, both with and without porcine scalp attached. Different speeds, impact locations and impact surfaces were tested. Standard linear drop tests (EN960) showed that the scalp reduced the impact energy by up to 68.7% (rear impact). Oblique head impact tests showed how the headform-anvil friction coefficient changes when the HIII is covered with scalp, affecting linear and rotational accelerations. Therefore, the scalp plays an important role in head impacts and it should be realistically represented in headforms used for impact tests and in numerical models of the human head.
Funding Details: European Commission Horizon 2020
Type of material: Journal Article
Publisher: Springer
Journal: Annals of Biomedical Engineering
Volume: 46
Issue: 6
Start page: 1
End page: 10
Copyright (published version): 2018 Springer
Keywords: Head impactsHead injuriesScalpHead protectionHelmet standard testsFriction coefficientSkin
DOI: 10.1007/s10439-018-2003-0
Language: en
Status of Item: Peer reviewed
Appears in Collections:Mechanical & Materials Engineering Research Collection
Medicine Research Collection

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