ArticleFrontiers in bioengineering and biotechnology2021
The Head AIS 4+ Injury Thresholds for the Elderly Vulnerable Road User Based on Detailed Accident Reconstructions.
Article in Frontiers in bioengineering and biotechnology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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7 citing papers in PubMed.
- Effect of modeling subject-specific cortical folds on brain injury risk prediction under blunt impact loading.Biomechanics and modeling in mechanobiology · 2026Article
- Can Industrial Helmets Protect the Head in Simulated Falls and Trips?Annals of biomedical engineering · 2026Article
- Superior linear and comparable rotational protection of an air-filled helmet versus foam helmets.Scientific reports · 2025Article
- How Well Do Popular Bicycle Helmets Protect from Different Types of Head Injury?Annals of biomedical engineering · 2024Article
- Parametric analysis of craniocerebral injury mechanism in pedestrian traffic accidents based on finite element methods.Chinese journal of traumatology = Zhonghua chuang shang za zhi · 2024Article
- Kinetic and Kinematic Features of Pedestrian Avoidance Behavior in Motor Vehicle Conflicts.Frontiers in bioengineering and biotechnology · 2021Article
- Realistic Reference for Evaluation of Vehicle Safety Focusing on Pedestrian Head Protection Observed From Kinematic Reconstruction of Real-World Collisions.Frontiers in bioengineering and biotechnology · 2021Article
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7 authors.
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Abstract
Compared with the young, the elderly (age greater than or equal to 60 years old) vulnerable road users (VRUs) face a greater risk of injury or death in a traffic accident. A contributing vulnerability is the aging processes that affect their brain structure. The purpose of this study was to investigate the injury mechanisms and establish head AIS 4+ injury tolerances for the elderly VRUs based on various head injury criteria. A total of 30 elderly VRUs accidents with detailed injury records and video information were selected and the VRUs' kinematics and head injuries were reconstructed by combining a multi-body system model (PC-Crash and MADYMO) and the THUMS (Ver. 4.0.2) FE models. Four head kinematic-based injury predictors (linear acceleration, angular velocity, angular acceleration, and head injury criteria) and three brain tissue injury criteria (coup pressure, maximum principal strain, and cumulative strain damage measure) were studied. The correlation between injury predictors and injury risk was developed using logistical regression models for each criterion. The results show that the calculated thresholds for head injury for the kinematic criteria were lower than those reported in previous literature studies. For the brain tissue level criteria, the thresholds calculated in this study were generally similar to those of previous studies except for the coup pressure. The models had higher (>0.8) area under curve values for receiver operator characteristics, indicating good predictive power. This study could provide additional support for understanding brain injury thresholds in elderly people.
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