The effect of impact location on brain strain

Tiernan, Stephen; Byrne, Gary

doi:10.1080/02699052.2019.1566834

Cited by 9 publications

(8 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These findings correlate with prior studies that have also found a relationship between impact location and brain strain. 17,[37][38][39] For example, Tiernan and Byrne 39 found that lateral impacts resulted in greater corpus collosum strain and frontal impacts result in greater mid brain strain, when the same kinematic measures were impacted at each location. Additionally, Miller et al 17 also found that impacts to the side had higher peak rotational velocity, VSM, M95T compared to the front.…”

Section: Discussionmentioning

confidence: 99%

Head Impact Kinematics and Brain Deformation in Paired Opposing Youth Football Players

Milef

Miller

DiGuglielmo

et al. 2022

Journal of Applied Biomechanics

View full text Add to dashboard Cite

Head impact exposure is often quantified using peak resultant kinematics. While kinematics describes the inertial response of the brain to impact, they do not fully capture the dynamic brain response. Strain, a measure of the tissue-level response of the brain, may be a better predictor of injury. In this study, kinematic and strain metrics were compared to contact characteristics in youth football. Players on 2 opposing teams were instrumented with head impact sensors to record impact kinematics. Video was collected to identify contact scenarios involving opposing instrumented players (ie, paired contact scenarios) and code contact characteristics (eg, player role, impact location). A previously validated, high-resolution brain finite element model, the atlas-based brain model, was used to simulate head impacts and calculate strain metrics. Fifty-two paired contact scenarios (n = 105 impacts) were evaluated. Lighter players tended to have greater biomechanical metrics compared to heavier players. Impacts to the top of the helmet were associated with lower strain metrics. Overall, strain was better correlated with rotational kinematics, suggesting these metrics may be better predictors of the tissue-level brain response than linear kinematics. Understanding the effect of contact characteristics on brain strain will inform future efforts to improve sport safety.

show abstract

Section: Discussionmentioning

confidence: 99%

Head Impact Kinematics and Brain Deformation in Paired Opposing Youth Football Players

Milef

Miller

DiGuglielmo

et al. 2022

Journal of Applied Biomechanics

View full text Add to dashboard Cite

show abstract

Section: Discussionmentioning

confidence: 73%

“…Our analysis indicated that game scenario was not a contributing factor to predicting APMPS of purposeful headers. This may be attributable to the fact that impact location causes different strains in various brain regions, 30,68 but the majority of head impacts in this study (70%) occurred at the frontal location across all game scenarios. In this study, game scenario was not a predictor of APMPS; however, rotational velocity was strongly associated with APMPS in all three regions of the brain during purposeful headers whereas linear acceleration was poorly associated with APMPS (Fig.…”

Section: Discussionmentioning

confidence: 76%

Purposeful Heading Performed by Female Youth Soccer Players Leads to Strain Development in Deep Brain Structures

Brooks

Allison

Harriss

et al. 2021

Neurotrauma Reports

View full text Add to dashboard Cite

Head impacts in soccer have been associated with both short-and long-term neurological consequences. Youth players' brains are especially vulnerable given that their brains are still developing, and females are at an increased risk of traumatic brain injury (TBI) compared to males. Approximately 90% of head impacts in soccer occur from purposeful heading. Accordingly, this study assessed the relationship between kinematic variables and brain strain during purposeful headers in female youth soccer players. A convenience sample of 36 youth female soccer players (13.4 [0.9] years of age) from three elite youth soccer teams wore wireless sensors to quantify head impact magnitudes during games. Purposeful heading events were categorized by game scenario (e.g., throw-in, goal kick) for 60 regular season games (20 games per team). A total of 434 purposeful headers were identified. Finite element model simulations were performed to calculate average peak maximum principal strain (APMPS) in the corpus callosum, thalamus, and brainstem on a subset of 110 representative head impacts. Rotational velocity was strongly associated with APMPS in these three regions of the brain (r = 0.83-0.87). Linear acceleration was weakly associated with APMPS (r = 0.13-0.31). Game scenario did not predict APMPS during soccer games ( p > 0.05). Results demonstrated considerable APMPS in the corpus callosum (mean = 0.102) and thalamus (mean = 0.083). In addition, the results support the notion that rotational velocity is a better predictor of brain strain than linear acceleration and may be a potential indicator of changes to the brain.

show abstract

“…Impact locations create different dynamic responses, and consequently, different brain tissue responses (Tiernan & Byrne, 2019;Elkin et al, 2019). Tiernan & Byrne (2019) and Elkin and colleagues (2019) used FE modeling and reported that lateral impacts result in significantly higher brain strains in the corpus callosum.…”

Section: Impact Characteristics In Equestrianmentioning

confidence: 99%

Comparing equestrian helmets with and without rotational technology using an equestrian concussive-specific helmet test protocol

Murphy,

Post,

Gilchrist

et al. 2024

Sports Eng

View full text Add to dashboard Cite

for their constant support and friendship during the uncertainty of the COVID-19 pandemic.I would like to thank Charles Owen for supplying the helmets for my study.I extend thanks to my family for supporting me throughout my academic career. My family's tremendous support and encouragement through shoulder surgery and rehabilitation made it possible for me to complete my graduate studies. Lastly, I would like to thank my friends for being there to support me along the way and make these years so memorable.

show abstract

The effect of impact location on brain strain

Cited by 9 publications

References 25 publications

Head Impact Kinematics and Brain Deformation in Paired Opposing Youth Football Players

Head Impact Kinematics and Brain Deformation in Paired Opposing Youth Football Players

Purposeful Heading Performed by Female Youth Soccer Players Leads to Strain Development in Deep Brain Structures

Comparing equestrian helmets with and without rotational technology using an equestrian concussive-specific helmet test protocol

Contact Info

Product

Resources

About