Type

Journal Article

Authors

Michael D Cusimano
Michael D Gilchrist
T Blaine Hoshizaki
Andrew Post

Subjects

Psychology

Topics
university college brain injury brain tissue brain trauma corpus callosum impacts strain linear acceleration

Peak linear and rotational acceleration magnitude and duration effects on maximum principal strain in the corpus callosum for sport impacts. (2016)

Abstract Concussion has been linked to the presence of injurious strains in the brain tissues. Research investigating severe brain injury has reported that strains in the brain may be affected by two parameters: magnitude of the acceleration, and duration of that acceleration. However, little is known how this relationship changes in terms of creating risk for brain injury for magnitudes and durations of acceleration common in sporting environments. This has particular implications for the understanding and prevention of concussive risk of injury in sporting environments. The purpose of this research was to examine the interaction between linear and rotational acceleration and duration on maximum principal strain in the brain tissues for loading conditions incurred in sporting environments. Linear and rotational acceleration loading curves of magnitudes and durations similar to those from impact in sport were used as input to the University College Brain Trauma Model and maximum principal strain (MPS) was measured for the different curves. The results demonstrated that magnitude and duration do have an effect on the strain incurred by the brain tissue. As the duration of the acceleration increases, the magnitude required to achieve strains reflecting a high risk of concussion decreases, with rotational acceleration becoming the dominant contributor. The magnitude required to attain a magnitude of MPS representing risk of brain injury was found to be as low as 2500rad/s(2) for impacts of 10-15ms; indicating that interventions to reduce the risk of concussion in sport must consider the duration of the event while reducing the magnitude of acceleration the head incurs.
Collections Ireland -> University College Dublin -> PubMed

Full list of authors on original publication

Michael D Cusimano, Michael D Gilchrist, T Blaine Hoshizaki, Andrew Post

Experts in our system

1
Michael D Cusimano
University College Dublin
Total Publications: 6
 
2
M. D. Gilchrist
University College Dublin
Total Publications: 172
 
3
T Blaine Hoshizaki
University College Dublin
Total Publications: 4
 
4
Andrew Post
University College Dublin
Total Publications: 29