BIOMECHANICAL STUDY OF THE HEAD - THORAX CONNECTION

ETUDE BIOMECANIQUE DE LA LIASION TETE-THORAX

This study involves the examination of the behaviour of the muscles of the neck of a baboon subjected to the type of shocks which would be sustained in a car. The torso of the animal is held in a rigid jacket. The deceleration signals were obtained by the stopping of the trolley with the aid of a system of elastomer tubes. In each test, high speed film was taken (1000 per second) to determine the kinematic action of the animal's head. The acceleration of the head is measured at two points with the aid of two bi-axial accelerometers. In the course of several series of tests, the data obtained are compared in three muscular conditions: normal, hypotonic state obtained from the injection of a tranquilizer, hypertonic obtained by direct electrical stimulation. A study of the trajectories of the head shows that in the hypotonic state, a translation component exists which is not found in the hypertonic state. The acceleration curves appear to reach a higher maximum level in the case of the monkey in a normal state, than in the case of the monkey in a hypertonic state. The preliminary results demonstrate the important role of the cervical muscles on the behaviour of the head-neck system. /TRRL/

  • Supplemental Notes:
    • From Proceedings du Colloque sur les Methodes d'Etudes et Simulation des Chocs, 16, 17 et 18 Octobre 1974, Lyon, France.
  • Corporate Authors:

    Librairie Lavoisier

    Rue Lavoisier 11
    75008 Paris,   France 
  • Authors:
    • BIARD, R
    • Martin, F
    • VERRIEST, J P
  • Publication Date: 1974

Language

  • French

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00184013
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Report/Paper Numbers: Monograph
  • Files: ITRD, TRIS
  • Created Date: Jan 13 1979 12:00AM