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Segmental Cervical Spine Kinematics Due to Posteroanterior Impact Acceleration

[+] Author Affiliations
Brian D. Stemper, Narayan Yoganandan, Frank A. Pintar

Medical College of Wisconsin, Milwaukee, WI

Paper No. IMECE2002-32630, pp. 391-392; 2 pages
  • ASME 2002 International Mechanical Engineering Congress and Exposition
  • Advances in Bioengineering
  • New Orleans, Louisiana, USA, November 17–22, 2002
  • Conference Sponsors: Bioengineering Division
  • ISBN: 0-7918-3650-9 | eISBN: 0-7918-1691-5, 0-7918-1692-3, 0-7918-1693-1
  • Copyright © 2002 by ASME


An experimental investigation was performed to determine the segmental cervical spine kinematics in rear impact acceleration. Segmental motions were analyzed at the time of maximum S-curve for 10 isolated head-neck specimens (5 male, 5 female). Females experienced greater segmental angles at each level of the spine for all input velocities. Statistically significant gender differences were obtained for levels C2-C3, C5-C6, and C6-C7. Motions were statistically dependent upon input velocity for C4 to C7 segments. Results of this study provide a biomechanical basis for the differing rates of reported whiplash injuries between males and females.

Copyright © 2002 by ASME



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