Protection from Brain Injury: The Relative Significance of Translational and Rotational Motions of the Head after Impact 700899
The rotational and translational rigid body motions of the head after impact were evaluated by high-speed cinematography in Rhesus monkeys with and without a cervical collar. When a collar was worn, animals displayed increased tolerance to occipital impact for the onset of cerebral concussion. Although head rotations were reduced in this nonconcussed protected group, translational motion of the head exceeded that attained by concussed monkeys not wearing collars but struck at equivalent impulse levels. These data emphasize the inadequacy of current head impact tolerance criteria which relate the occurrence of brain injury to translational head motions.
Citation: Hirsch, A. and Ommaya, A., "Protection from Brain Injury: The Relative Significance of Translational and Rotational Motions of the Head after Impact," SAE Technical Paper 700899, 1970, https://doi.org/10.4271/700899. Download Citation
Arthur E. Hirsch, Ayub K. Ommaya
14th Stapp Car Crash Conference (1970)
Biomechanics of Impact Injury and Injury Tolerances of the Head-Neck Complex-PT-43