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This shift in gaze is critical to our capacity to assess the location, direction of travel, and speed of approaching vehicles
Controller Serial Number
Color:Tie Dye
This CPSC standard requires that a normal impact from a vertical drop of a helmeted headform onto a horizontal anvil results in less than 300 g linear acceleration of a test headform.14 However, in contrast to radial CPSC impacts, real-world impacts typically occur at impact angles of 30°–60°.9,10,42 Such oblique impacts induce both radial and tangential forces to the head, leading to both linear and rotational head acceleration.36,57 A large body of research has shown that concussions can readily be caused by head rotational kinematics, as measured by rotational acceleration or rotational velocity, which subjects brain tissue to shear forces that can induce diffuse axonal injury.23,25,28,30,31,41,44,47 Since axonal shear strain caused by rotational head acceleration is a predominant mechanism of brain injury,38 advanced helmet designs should specifically target mitigation of rotational kinematics, and should be tested in real-world oblique impacts.49 Recently, several bicycle helmet designs have been introduced that have dedicated rotation-damping systems for mitigation of rotational head acceleration to provide improved protection from brain injury.1,7,20,27 The most widely adopted strategy consists of a slip liner inside the helmet, termed Multidirectional Impact Protection System (MIPS AB, Täby, Sweden), that seeks to reduce rotational kinematics of the head by permitting sliding between the helmet and head during impact
Modular combines the quality construction of the SRT – fiberglass shell
