Table 1 Model performances for replicating shaking kinematics.

From: Inflicted head-injury by shaking-trauma in infants: the importance of spatiotemporal variations of the head’s rotation center

 

Vertex

COG

RMSE-X (m/s2)

RMSE-Z (m/s2)

RMSE-X (m/s2)

RMSE-Z (m/s2)

CAT I-A

46.2

39.9

43.3

38.4

CAT I-B

56.3

44.3

53.7

42.6

CAT II

101.1

N/A*

49.2

N/A*

CAT III-A

41.0

38.3

36.8

36.6

CAT III-B

33.6

42.7

30.5

42.6

Moving-ICOR model

12.1

6.3

0.0**

0.0**

  1. Absolute root-mean-square error (RMSE) between the models and the measured accelerations of the head’s vertex and center of gravity (COG) for each participant’s selected shake cycle, averaged across all participants. (*) The RMSE-Z was not calculated for CAT II because this model-type only involved horizontal accelerations. (**) The RMSE-X and -Z of the COG for the Moving-ICOR model are both zero because the kinematic values used as input for the model were directly derived from the measured COG accelerations. Data of each participants’ shake cycle with the highest tangential vertex acceleration was used.
Back to article page