Head injury metric response in finite element ATDs and a human body model in multidirectional loading regimes

Jones, Derek A.; Gaewsky, James P; Somers, Jeffrey T.; Gayzik, F. Scott; Weaver, Ashley A.; Stitzel, Joel D.

doi:10.1080/15389588.2019.1707193

Cited by 8 publications

(4 citation statements)

References 10 publications

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“…In the case of lateral shoulder impact [Koh ( Figure 2B )], the simplified model is in disagreement with the detailed in terms of whether the neck is being forced into extension or flexion. As it has been previously noted within the literature ( Jones, 2019 ), the delineation of a specific trend which relates the moments of the upper neck region between the models remains unclear, which is consistent with the present findings.…”

Section: Resultssupporting

confidence: 89%

“…5 below ( R 2 = 0.8237). As has been previously noted by Jones (2019) sagittal moment was not found to correlate between the models used in this study ( Jones, 2019 ). Time history of sagittal moment has been graphically represented in Supplementary Figure A4 of the appendix.…”

Section: Discussionsupporting

confidence: 63%

“…CORA is another objective evaluation method which returns a cross correlation score based on size, shape, phase, and corridor ( Gehre et al, 2009 ). A recent study, part of which utilized 4 impact conditions [both sagittal ( n = 3) and lateral ( n = 1)] noted a lack of direct comparison between the neck moments of the M50-O and M50-OS based on magnitude and temporal domains, especially when extension and lateral bending of the neck were induced ( Jones, 2019 ).…”

Section: Introductionmentioning

confidence: 99%

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Comparison of Neck Injury Criteria Values Across Human Body Models of Varying Complexity

Johnson

Koya

Gayzik

2020

Front. Bioeng. Biotechnol.

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Due to the severity and frequency of cervical spine injuries, the neck injury criterion (Nij) was developed to provide a quantitative relationship between forces and moments of the upper neck with accompanied injury risk. The present study was undertaken to evaluate differences in calculated Nij for the Global Human Body Model Consortium's detailed and simplified average 50th percentile male models. The simplified model is a computationally light version of the more detailed model and therefore it is of interest to achieve similar Nij values between the two models. These models were compared in 15 match paired conditions of rigid head impact and a mixture of seven full body rigid hub and sled pulses, for 44 total simulations. Collectively, Nij values of the simplified model were found to exhibit a second-degree polynomial fit, allowing for a conversion to the prediction of the detailed model. Correlates were also derived for impact and inertial loading cases individually, for which the latter may be the subject of future work. The differences in Nij may be attributed to a variety of modeling approach differences related to neck muscles (attachment location and morphometric implementation), localization of head mass within the M50-OS, head geometry, and intervertebral joint space properties. With a primary focus on configurations in the anterior-posterior direction, there is a potential limitation in extensibility to lateral loading cases. In response to the relatively low Nij values exhibited, future work should evaluate the appropriateness of the established critical intercepts of Nij for computational human body models.

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Section: Resultssupporting

confidence: 89%

Section: Discussionsupporting

confidence: 63%

Section: Introductionmentioning

confidence: 99%

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Comparison of Neck Injury Criteria Values Across Human Body Models of Varying Complexity

Johnson

Koya

Gayzik

2020

Front. Bioeng. Biotechnol.

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“…Several experimental and computational studies have been conducted in the past decade to investigate the effects of spacecraft landing loads on occupants' bodies (e.g., Gaewsky et al, 2019;McNamara et al, 2017). Investigations have primarily focused on addressing the dynamic response of significant anatomical sites to either vertical or multidirectional loads such as the head-neck complex (Jones et al, 2019), the spine (Ye et al, 2020) and the pelvis (Bailey, Christopher, Brozoski, & Salzar, 2015).…”

Section: Introductionmentioning

confidence: 99%

Computational Assessment of Positional Sensitivity to Injury in Spacecraft Occupants

Menon

Ayari

Currie-Gregg

2022

Proceedings of the Human Factors and Ergonomics Society Annual

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Spacecraft occupants are susceptible to injury from sudden loads, such as those experienced during landing. Most injury biomechanics investigations assume perfect seated posture and consistent seated position. However, this assumption is unrealistic, as offsets from these presumed postures and placements are likely during impacts. In this computational study, the Global Human Body Model Consortium’s simplified 5thpercentile female and 50th and 95th-percentile male anthropometric models were seated and restrained in three positions: nominal, (“perfect” posture and placement); and 10 millimeters and 25.4 millimeters forward of the seatback. Biodynamic responses to simulations involving vertical accelerations were analyzed for positional sensitivity. The 5th-percentile female was most susceptible to neck injury due to compressive forces. In 50th and 95th-percentile males, upper spinal intervertebral forces were positively correlated to seated position (increasing 13% for 25.4mm forward offset). Analysis of head excursions and knee splay data indicates potential whiplash and the need for conformal seating, respectively.

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Simulated Astronaut Kinematics and Injury Risk for Piloted Lunar Landings and Launches While Standing

et al. 2022

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Head injury metric response in finite element ATDs and a human body model in multidirectional loading regimes

Cited by 8 publications

References 10 publications

Comparison of Neck Injury Criteria Values Across Human Body Models of Varying Complexity

Comparison of Neck Injury Criteria Values Across Human Body Models of Varying Complexity

Computational Assessment of Positional Sensitivity to Injury in Spacecraft Occupants

Simulated Astronaut Kinematics and Injury Risk for Piloted Lunar Landings and Launches While Standing

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