Comparative Tolerances for Cerebral Concussion by Head Impact and Whiplash Injury in Primates 700401
Experimental head impact and whiplash injury experiments have been conducted in 3 sub-human primate species in order to define tolerance thresholds for onset of cerebral concussion. Preliminary analysis of our data support a hypothesis that approximately 50% of the potential for brain injury during impact to the unprotected movable head is directly proportional to head rotation and inversely proportional to head translation by the impact; the remaining brain injury potential of the blow is directly proportional to the contact phenomena of the impact. A scaling method for injurious rotations is presented which predicts that levels of head rotational velocity exceeding 50 Rad/sec and acceleration exceeding 1800 Rad/sec2 are compatible with a 50% probability for onset of cerebral concussion in man.
Citation: Ommaya, A., Fisch, F., Mahone, R., Corrao, P. et al., "Comparative Tolerances for Cerebral Concussion by Head Impact and Whiplash Injury in Primates," SAE Technical Paper 700401, 1970, https://doi.org/10.4271/700401. Download Citation
A. K. Ommaya, F. J. Fisch, R. M. Mahone, P. Corrao, F. Letcher
Naval Ship Research and Development Center, Naval Medical Research Institute
International Automobile Safety Conference
Biomechanics of Impact Injury and Injury Tolerances of the Head-Neck Complex-PT-43