MODIFICATION AND VALIDATION OF HUMAN NECK MODEL UNDER DIRECT HEAD LOADING

In the present study, the effects of cervical spine initial alignment, muscle activity, and the selected properties of trachea, vena cava and inactivated muscles on the responses of a finite element model of a cervical spine (H-Model by the ESI Group) under direct head loading were investigated. The modelling results were compared with those of volunteers. The present results suggest the following: Properties of inactivated muscles, vena cava and trachea greatly affect the general head motion; Maximum isometric force plays an important role in resisting neck extension; and Reflex time determining the start of generation of active muscle force considerably affects the angular displacement of cervical vertebrae. Based on these findings, the modifications of the cervical spine H-Model were introduced. The modified model well represented the head-C7 motion, although it underestimated the head-atlas extension. For the covering abstract see ITRD E825082.

  • Corporate Authors:

    National Highway Traffic Safety Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590

    MINISTRY OF ECONOMY, TRADE AND INDUSTRY OF JAPAN

    1-3-1, KASUMIGASEKI, CHIYODA-KU
    TOKYO,   Japan  100-8901
  • Authors:
    • EJIMA, S
    • WITTEK, A
    • Ono, K
    • Yamazaki, K
  • Publication Date: 2003-5

Language

  • English

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00987299
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD, USDOT
  • Created Date: Mar 3 2005 12:00AM