Use of brain biomechanical models for monitoring impact exposure in contact sports

S Ji, M Ghajari, H Mao, RH Kraft… - Annals of Biomedical …, 2022 - Springer
Head acceleration measurement sensors are now widely deployed in the field to monitor
head kinematic exposure in contact sports. The wealth of impact kinematics data provides …

[HTML][HTML] An overview of the test methodology used in current cycling helmet standards and literature

B Emsley, J Farmer, P Sherratt, P Goodall… - International Journal of …, 2024 - Elsevier
Cycling helmets play a crucial role in protecting against head injuries, however, their
effectiveness in mitigating all types of head injury is limited, particularly traumatic brain …

A new assessment of bicycle helmets: the brain injury mitigation effects of new technologies in oblique impacts

F Abayazid, K Ding, K Zimmerman, H Stigson… - Annals of biomedical …, 2021 - Springer
New helmet technologies have been developed to improve the mitigation of traumatic brain
injury (TBI) in bicycle accidents. However, their effectiveness under oblique impacts, which …

Quantification of head acceleration events in rugby league: an instrumented mouthguard and video analysis pilot study

J Tooby, D Weaving, M Al-Dawoud, G Tierney - Sensors, 2022 - mdpi.com
Instrumented mouthguards (iMG) were used to collect head acceleration events (HAE) in
men's professional rugby league matches. Peak linear acceleration (PLA), peak angular …

Real-time dynamic simulation for highly accurate spatiotemporal brain deformation from impact

S Wu, W Zhao, S Ji - Computer methods in applied mechanics and …, 2022 - Elsevier
Real-time dynamic simulation remains a significant challenge for spatiotemporal data of
high dimension and resolution. In this study, we establish a transformer neural network …

[HTML][HTML] A quantitative relationship between rotational head kinematics and brain tissue strain from a 2-D parametric finite element analysis

RW Carlsen, AL Fawzi, Y Wan, H Kesari, C Franck - Brain Multiphysics, 2021 - Elsevier
Given the complex nature of traumatic brain injury (TBI), assessment of injury risk directly
from kinematic measures of head motion remains a challenge. Despite this challenge …

An instrumented mouthguard for real-time measurement of head kinematics under a large range of sport specific accelerations

CM Jones, K Austin, SN Augustus, KJ Nicholas, X Yu… - Sensors, 2023 - mdpi.com
Background: Head impacts in sports can produce brain injuries. The accurate quantification
of head kinematics through instrumented mouthguards (iMG) can help identify underlying …

American football helmet effectiveness against a strain-based concussion mechanism

K Ghazi, M Begonia, S Rowson, S Ji - Annals of biomedical engineering, 2022 - Springer
Brain strain is increasingly being used in helmet design and safety performance evaluation
as it is generally considered as the primary mechanism of concussion. In this study, we …

When to pull the trigger: conceptual considerations for approximating head acceleration events using instrumented mouthguards

J Tooby, K Till, A Gardner, K Stokes, G Tierney… - Sports medicine, 2024 - Springer
Head acceleration events (HAEs) are acceleration responses of the head following external
short-duration collisions. The potential risk of brain injury from a single high-magnitude HAE …

A morphologically individualized deep learning brain injury model

N Lin, S Wu, S Ji - Journal of Neurotrauma, 2023 - liebertpub.com
The brain injury modeling community has recommended improving model subject specificity
and simulation efficiency. Here, we extend an instantaneous (< 1 sec) convolutional neural …