Figure 3

Measured responses to hyper-flexion and hyper-extension of the neck. (a) Hyperflexion: Voltage response of the patch located at the back of the neck (as shown in (b), where the orange shade represents the patch location) and angular velocity from the 6DX for drop tests from various heights simulating frontal collision of the center plate. (c) Hyperextension: Voltage response of the patch located at the front of the neck (as shown in d) and angular velocity from the 6DX for drop tests from various heights simulating frontal collision of the center plate. Blue dots on (b) and (d) are rough estimations of the 6DX position.