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Expansion and evaluation of data characterizing the structural behavior of the pediatric abdomen

John F Lamp1, Robert Salzar, Jason Kerrigan

  • 1Center for Applied Biomechanics at the University of Virginia Duke University.

Annals of Advances in Automotive Medicine. Association for the Advancement of Automotive Medicine. Annual Scientific Conference
|November 6, 2010
PubMed

Insights

Pediatric abdominal response to seat belt loading was studied using post-mortem human subjects (PMHS) and a porcine model. Results show similar stiffness in both, validating the animal model for child safety research.

Area of Science:

  • Biomechanical Engineering
  • Pediatric Trauma Research
  • Automotive Safety

Background:

  • Abdominal injuries in children from motor vehicle collisions are a significant concern.
  • Limited experimental data exists on pediatric abdominal response to seat belt loading.
  • Previous research developed a porcine model and tested one pediatric post-mortem human subject (PMHS).

Purpose of the Study:

  • To present results from an additional pediatric PMHS test series.
  • To expand the evaluation of a porcine model using combined PMHS data.
  • To compare pediatric and porcine abdominal responses to belt loading.

Main Methods:

  • Conducted a series of tests on an additional pediatric (6-year-old female) PMHS.
  • Performed quasi-static and dynamic (∼2 m/s) loading tests.
  • Expanded evaluation of a characterized porcine model using combined PMHS data.

Main Results:

  • Both pediatric PMHS exhibited similar abdominal stiffness across different levels and loading rates.
  • Both PMHS and swine showed a consistent stiffness trend: lower abdomen stiffer than upper abdomen.
  • Lower abdomen stiffness magnitude was slightly less in swine compared to PMHS, while upper abdomen responses were comparable.

Conclusions:

  • The porcine model demonstrates good efficacy in replicating pediatric abdominal response to belt loading.
  • The findings support the use of the porcine model for further research into child restraint systems.
  • This study provides valuable data for improving child safety in motor vehicle collisions.

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