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: An improved padding system for a helmet and process for designing the padding system are described. In one example, a helmet for an individual can include an outer shell having an inner surface. The helmet can further include a padding system coupled to the inner surface. The padding system can include pad clusters that are respectively positioned at different locations on the inner surface. Each of the pad clusters can include discrete pads that are individually coupled to the inner surface in a defined arrangement. In one example, the defined arrangement can be a certain arrangement that allows the discrete pads to collectively provide a desired system stiffness for the padding system. The desired system stiffness in this example can be a certain system stiffness that can reduce at least one of peak linear or peak rotational accelerations to the head of the individual during an impact.

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.

Abstract: A method and device for use in pedestrian-vehicular collisions in which an active hood lift system is deployed to a first elevated lift position and maintained at the deployed position for an interval after which it is lowered, thereby controlling pedestrian impact kinetics and reducing forces that can result pedestrian injuries.

Abstract: A method and device for use in pedestrian-vehicular collisions in which an active hood lift system is deployed to a first elevated lift position and maintained at the deployed position for an interval after which it is lowered, thereby controlling pedestrian impact kinetics and reducing forces that can result pedestrian injuries.