The dynamic response characteristics of traumatic brain injury

Files in This Item:
File Description SizeFormat 
Gilchrist_130_Archival_Repository.pdf1.45 MBAdobe PDFDownload
Title: The dynamic response characteristics of traumatic brain injury
Other Titles: The characteristics of traumatic brain injury
Authors: Post, AndrewHoshizaki, Thomas BlaineGilchrist, M. D.et al.
Permanent link: http://hdl.handle.net/10197/7995
Date: Jun-2015
Abstract: Traumatic brain injury (TBI) is a common injury and is a leading cause of morbidity and mortality throughout the world. Research has been undertaken in order to better understand the characteristics of the injury event and measure the risk of injury to develop more effective environmental, technological, and clinical management strategies. This research used methods that have limited applications to predicting human responses. This limits the current understanding of the mechanisms of TBI in humans. As a result, the purpose of this research was to examine the characteristics of impact and dynamic response that leads to a high risk of incurring a TBI in a human population. Twenty TBI events collected from hospital reports and eyewitness accounts were reconstructed in the laboratory using a combination of computational mechanics models and Hybrid III anthropometric dummy systems. All cases were falls, with an average impact velocity of approximately 4.0 m/s onto hard impact surfaces. The results of the methodology were consistent with current TBI research, describing TBI to occur in the range of 335 to 445 g linear accelerations and 23.7 to 51.2 krad/s2 53 angular accelerations. More significantly, this research demonstrated that lower responses in the antero-posterior direction can cause TBI, with lateral impact responses requiring larger magnitudes for the same types of brain lesions. This suggests an increased likelihood of incurring TBI for impacts to the front or back of the head, a result that has implications affecting current understanding of themechanisms of TBI and associated threshold parameters.
Funding Details: Canadian Institutes of Health Research (CIHR)
Type of material: Journal Article
Publisher: Elsevier
Journal: Accident Analysis and Prevention
Volume: 79
Copyright (published version): 2015 Elsevier
Keywords: Traumatic brain injuryFallBrain injuryImpact biomechanics
Language: en
Status of Item: Peer reviewed
This item is made available under a Creative Commons License: https://creativecommons.org/licenses/by-nc-nd/3.0/ie/
Appears in Collections:Mechanical & Materials Engineering Research Collection

Show full item record

Page view(s)

1,066
Last Week
10
Last month
16
checked on Jan 16, 2021

Download(s)

196
checked on Jan 16, 2021

Google ScholarTM

Check


If you are a publisher or author and have copyright concerns for any item, please email research.repository@ucd.ie and the item will be withdrawn immediately. The author or person responsible for depositing the article will be contacted within one business day.