Publications by authors named "C Bir"

Background: Many military service members are victims of repetitive blast traumatic brain injuries (rbTBI) and endure diverse altered psychological and behavioural conditions during their lifetime. Some of these conditions include anxiety, post-traumatic stress and pain. Thus, this study attempts to fill the knowledge gap on enduring behavioural and neuroinflammatory marker alterations 1 month after rbTBI.

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Purpose: Measuring head kinematics data is important to understand and develop methods and standards to mitigate head injuries in contact sports. Instrumented mouthguards (iMGs) have been developed to address coupling issues with previous sensors. Although validated with anthropomorphic test devices (ATDs), there is limited post-mortem human subjects (PMHS) data which provides more accurate soft tissue responses.

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Article Synopsis
  • Instrumented mouthguard systems (iMGs) are being tested for their accuracy in measuring head movements during sports, especially in real human cadaver heads rather than on dummies.
  • In a study, two different types of boil-and-bite iMGs were used on unembalmed cadaver heads, fitted with helmets and subjected to impact tests at various velocities.
  • Results showed that while one iMG performed reasonably under certain conditions, both systems had inconsistencies with reference measurements, underscoring the need for further validation in real-life scenarios to improve their effectiveness.
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The use of ordnance gelatine has been widespread in the field of ballistics as a simulant for soft tissue when assessing ballistic threats. However, the traditional method of preparing ordnance gelatine is time-consuming and requires precision to ensure that the final mold meets the required specifications. Furthermore, temperature control is necessary post-production, and there are limitations on its usage duration.

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Background: Commotio cordis, sudden cardiac death (SCD) caused by relatively innocent impact to the chest, is one of the leading causes of SCD in sports. Commercial chest protectors have not been demonstrated to mitigate the risk of these SCDs.

Methods: To develop a standard to assess chest protectors, 4 phases occurred.

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