TY  - JOUR
PY  - 2020//
TI  - Age differences in occupant motion during simulated in-vehicle swerving maneuvers
JO  - International journal of environmental research and public health
A1  - Graci, Valentina
A1  - Douglas, Ethan
A1  - Seacrist, Thomas
A1  - Kerrigan, Jason
A1  - Mansfield, Julie
A1  - Bolte, John H.
A1  - Sherony, Rini
A1  - Hallman, Jason
A1  - Arbogast, Kristy
SP  - e1834
EP  - e1834
VL  - 17
IS  - 6
N2  - BACKGROUND: With active safety and automated vehicle features becoming more available, unanticipated pre-crash vehicle maneuvers, such as evasive swerving, may become more common, and they may influence the resulting effectiveness of occupant restraints, and consequently may affect injury risks associated with crashes. Therefore, the objective of this study was to quantify the influence of age on key occupant kinematic, kinetic, and muscular responses during evasive swerving in on-road testing. <br><br>METHODS: Seat belt-restrained children (10-12 years old), teens (13-17 years old), and adults (21-33 years old) experienced two evasive swerving maneuvers in a recent model sedan on a test track. Kinematics, muscle activity, and seat belt load distribution were determined and analyzed. <br><br>RESULTS: Compared to teens and adults, children showed greater head and trunk motion (<i>p</i> < 0.03), but similar muscle activation in the into-the-belt direction of swerving. In the out-of-the-belt direction, children showed head and trunk motion more similar to teens and adults (<i>p</i> < 0.02), but with greater muscle activation. <br><br>CONCLUSIONS: Children showed different neuromuscular control of head and trunk motion compared to older occupants. This study highlights differences in the relationship between kinematics and muscle activation across age groups, and provides new validation data for active human body models across the age range.<p />  <p>Language: en</p>
LA  - en
SN  - 1661-7827
UR  - http://dx.doi.org/10.3390/ijerph17061834
ID  - ref1
ER  -