Title :
Analysis of the motion of rat head in impact acceleration injury tests
Author :
Romanov, V. ; Darvish, K.
Author_Institution :
Temple Univ., Philadelphia
Abstract :
The kinematics of two head injury models with impact acceleration that produced severe and mild diffuse axonal injury in rats were investigated. The animals were instrumented with two triaxial accelerometers and the vertical motion was also recorded with high speed digital photography. The maximum linear and angular velocities in the severe injury model (7.2 m/s and 100 rad/s) were 4.0 and 3.3 times higher than the mild injury model showing that both linear and angular components of the motion may contribute to the severity of diffuse axonal injury. The results of this study can be used to develop an injury criterion for mild to severe diffuse axonal injury.
Keywords :
acceleration; biomechanics; brain; impact (mechanical); angular velocities; closed brain injury model; diffuse axonal injury; head injury models; high speed digital photography; impact acceleration injury tests; linear velocities; rat head motion; triaxial accelerometers; Acceleration; Animals; Brain injuries; Instruments; Kinematics; Life estimation; Magnetic heads; Motion analysis; Rats; Testing;
Conference_Titel :
Bioengineering Conference, 2007. NEBC '07. IEEE 33rd Annual Northeast
Conference_Location :
Long Island, NY
Print_ISBN :
978-1-4244-1033-0
Electronic_ISBN :
978-1-4244-1033-0
DOI :
10.1109/NEBC.2007.4413260