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Kinematic Evaluation of Children and Young Adults in Lateral Loading
Published May 23, 2012 by Society of Automotive Engineers of Japan in Japan
Lateral loading of a seat-belt-restrained occupant may lead to torso slip out of the shoulder belt which may be more pronounced in children as compared to adults due to increased flexibility of the pediatric spine. A pretensioned seat belt may provide an effective countermeasure to torso rollout; however, the effectiveness may vary with age. The aim of this study was to evaluate the effect of pretensioning on torso containment within the lap-shoulder belt for restrained children and young adults in low-speed lateral sled tests. Fifteen male subjects in three age groups (9-11, 12-14, 18-30 years) were tested on a custom-built sled. Spherical reflective markers were placed on key skeletal landmarks and shoulder belt and tracked using a 3D motion analysis system. The effect of age and pretensioning on maximum torso rollout and the time at which torso rollout was initiated were quantified.
- Kristy B. Arbogast - Children's Hospital of Philadelphia
- Emily A. Mathews - Drexel Univ.
- Thomas Seacrist - Children's Hospital of Philadelphia
- Sriram Balasubramanian - Drexel Univ.
- Richard W. Kent - University of Virginia
- Francisco J. Lopez-Valdes - University of Virginia
- Hiromasa Tanji - Takata
- Schuyler St. Lawrence - Takata
- Kazuo Higuchi - Takata