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Updated: Aug 5, 2026
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Impact Mitigation in Modern Football Helmets: Advances and Limitations of Position-Specific Designs
Published on: January 13, 2026
Translating Professional Football Helmet Tests to Full Body Finite Element (FE) Simulations: A Reproducible
Caleb Ronald Cassidy1, Tate Russell Fonville2, Kevin Lister3
1School of Engineering, Liberty University; crcassidy@liberty.edu.
Journal of Visualized Experiments : Jove
|August 3, 2026
Summary
This study introduces a workflow to simulate real football plays using finite-element human models. It ensures accurate helmet-head-body simulations for safer sports equipment design and policy.
Area of Science:
- Biomechanics
- Computational Modeling
- Sports Engineering
Background:
- Finite-element (FE) models are crucial for analyzing head impacts in sports.
- Reproducibility and standardization in FE simulations are challenging.
- Translating real-world events into simulation parameters requires robust workflows.
Purpose of the Study:
- To present a reproducible workflow for translating real football plays into FE simulations.
- To establish quality-control measures for helmet-FE model integration.
- To enable standardized analysis of head impacts across different laboratories and applications.
Main Methods:
- Reconstruction of six-degree-of-freedom kinematics from single-view video.
- Application of kinematics to a helmet-head-body FE model with event-specific hardware.
- Implementation of quality-control gates for helmet readiness, mass/CG agreement, energy balance, and driver fidelity.
- Verification of numerical stability and driver fidelity through demonstration replay.
Main Results:
- The workflow successfully translates real football plays into solver-ready boundary conditions.
- Quality-control gates ensure the readiness and fidelity of the FE model.
- Demonstration replay verifies numerical stability and reports tissue-level responses and diagnostic damage metrics.
- The framework supports advanced constitutive models for internal response analysis.
Conclusions:
- The developed workflow provides a practical foundation for standardizing helmet integration and enabling cross-laboratory reproducibility.
- Separating readiness checks from injury interpretation enhances the reliability of simulation outputs.
- The method generalizes beyond sports to transportation and defense applications, offering a pathway for safer design and policy informed by ethical simulation.
