Quantifying Differences in Head Kinematic Response to +Z Acceleration with Subjects Seated Upright Versus Supine

摘要

1. Expected logical trends occurred for Angular Velocity and Angular Acceleration 2. Peak G and G-Onset Rate are not the only parts of the equation a. Pulse duration matters! 3. Gravity has a significant effect on kinematic response at low G a. Exactly where it loses influence is dependent on the pulse magnitude and duration 4. The bottom line... a. When studying response to vertical acceleration using a horizontal sled, it is important to accurately characterize the entire profile (especially duration) b. But it is better to have the subjects seated upright.