Abstract: Various embodiments relating to methods for evaluating injury mitigation performance of helmets that are used for sports (e.g., whitewater kayaking and rafting) are described. In one embodiment, a method for evaluating injury mitigation performance of a helmet includes applying a first impact configuration to a first helmet and applying a second impact configuration to a second helmet of the same model as the first helmet. The method further includes generating acceleration data based on impacts that occur as part of the first impact configuration and the second impact configuration. The method further includes determining concussion risk values based on the generated acceleration data. The method also includes determining a concussion risk metric based on the concussion risk values and exposure values.

Abstract: Various embodiments relating to methods for evaluating injury mitigation performance of helmets that are used for sports (e.g., equestrian sports) are described. In one embodiment, a method for evaluating injury mitigation performance of an equestrian helmet includes applying a first impact configuration to a first and a second helmet of the same model and applying a second impact configuration to a third and a fourth helmet that are both of the same model as the first and the second helmet. The method further includes generating acceleration data based on impacts that occur as part of the first impact configuration and the second impact configuration. The method further includes determining concussion risk values based on the generated acceleration data. The method also includes determining a concussion risk metric based on the concussion risk values and exposure values.

Abstract: Various embodiments relating to methods for evaluating injury mitigation performance of helmets that are used for contact sports (e.g., rugby) are described. In one embodiment, a method for evaluating injury mitigation performance of a helmet includes applying first, second, and third impact configurations to a first helmet. The method further includes generating acceleration and velocity data based on impacts that occur as part of the three impact configurations. The method further includes determining injury risk values based on the generated acceleration and velocity data. The method also includes determining an overall risk metric based on the injury risk values and exposure values.

Abstract: Various embodiments relating to methods for evaluating injury mitigation performance of helmets that are used for snow sports (e.g., skiing or snowboarding) are described. In one embodiment, a method for evaluating injury mitigation performance of a helmet includes applying a first and a second impact configuration to a helmet. The first and the second impact configurations include a plurality of impacts between the helmet and a metal plate. The metal plate is tilted at a first predetermined angle for the first impact configuration and at a second predetermined angle for the second impact configuration. The method further includes generating acceleration and velocity data based on impacts that occur as part of the two impact configurations. The method further includes determining injury risk values based on the generated acceleration and velocity data. The method also includes determining an overall injury risk metric based on the injury risk values and exposure values.

Abstract: Various embodiments relating to methods for evaluating injury mitigation performance of helmets that are used for sports (e.g., whitewater kayaking and rafting) are described. In one embodiment, a method for evaluating injury mitigation performance of a helmet includes applying a first impact configuration to a first helmet and applying a second impact configuration to a second helmet of the same model as the first helmet. The method further includes generating acceleration data based on impacts that occur as part of the first impact configuration and the second impact configuration. The method further includes determining concussion risk values based on the generated acceleration data. The method also includes determining a concussion risk metric based on the concussion risk values and exposure values.