2009/08/17 by Philippe Rousseau, Andrew Post, T. Blaine Hoshizaki · 1 citation
Medicine · #Automotive and Human Injury Biomechanics #Traumatic Brain Injury Research #Winter Sports Injuries and Performance
paper · doi:10.1243/17543371jset36
openalex publication_date 2009/08/17 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/22
The objective of this study was to compare the capacity of vinyl nitrile and expanded polypropylene, two materials commonly used in ice hockey helmets, to reduce the peak linear acceleration, peak angular acceleration, and head injury criterion values during a direct impact to a hybrid III headform. Six different ice hockey helmets were tested using a pneumatic linear impactor at velocities similar to those in hockey. The results showed that helmets using expanded polypropylene foam liners are significantly better at reducing linear acceleration; however, helmets using vinyl nitrile foam liners are significantly better at reducing angular acceleration. Furthermore, the impact location influenced the performance of the liner.