High-Speed Photographic Analysis of Whiplash in Monkeys
High-speed framing photography has been employed to study the dynamic response of squirrel monkeys subjected to rapid acceleration in a vehicle. The primary purpose of the investigation was to perform a histopathological study to determine if any injury to the vestibular (part of the inner ear concerned with balance) and central nervous systems (brain and spinal cord of neck) results during whiplash. Consequently, 26 monkeys were exposed to accelerations in the range of 15 to 23 g's, and the motion of the head and neck structure was recorded. This paper presents high-speed photographic data obtained from a typical test run which permitted an estimate of the linear and angular accelerations to be made during whiplash. Based on a three degree of freedom model of the head-neck structure, the forces and stiffness parameters associated with resistance to the whiplash motion were computed from Lagrangian equations of motion.
- Print ISSN
- 0361-4573
- Published
- 1972-03
- Content type
- Original Research
- DOI
- 10.5594/J05631