Type

Journal Article

Authors

M. D. Gilchrist
Thomas Blaine Hoshizaki
D.G.E. Robertson
J Michio Clark
Andrew Post

Subjects

Physiotherapy & Sport

Topics
university college dublin mtbi biomechanics filtering ice hockey signal processing concussion american football

The effect of acceleration signal processing for head impact numeric simulations (2016)

Abstract Brain injury research in sport employs a variety of physical models equipped with accelerometers. These acceleration signals are commonly processed using filters. The purpose of this research was to determine the effect of applying filters with different cutoff frequencies to the acceleration signals used as input for finite element modelling of the brain. Signals were generated from reconstructions of concussion events from American football and ice hockey in the laboratory using a Hybrid III headform. The resulting acceleration signals were used as input for the University College Dublin Brain Trauma Model after being processed with filters. The results indicated that using a filter with a cutoff of 300 Hz or higher had little effect on the resulting strain measures. In some cases there was some effect of the filters on the peak linear (8¿30g) and rotational measures (1000¿4000 rad/s2), but little effect on the finite element strain result (approximately 2¿6 %). The short duration and high magnitude accelerations, such as the puck impact, were most affected by the cutoff frequency of different filters.
Collections Ireland -> University College Dublin -> Mechanical & Materials Engineering Research Collection
Ireland -> University College Dublin -> School of Mechanical and Materials Engineering

Full list of authors on original publication

M. D. Gilchrist, Thomas Blaine Hoshizaki, D.G.E. Robertson, J Michio Clark, Andrew Post

Experts in our system

1
M. D. Gilchrist
University College Dublin
Total Publications: 172
 
2
Thomas Blaine Hoshizaki
University College Dublin
Total Publications: 31
 
3
J Michio Clark
University College Dublin
Total Publications: 8
 
4
Andrew Post
University College Dublin
Total Publications: 29