Influence of seat characteristics on occupant motion in low-speed rear impacts

Yoichi Watanabe, Hideaki Ichikawa, Osamu Kayama, Koshiro Ono, Koji Kaneoka, Satoshi Inami

Research output: Contribution to journalArticlepeer-review

55 Citations (Scopus)


To analyze the effect of the seat characteristics on dummy motions and human volunteer motions, sled tests simulating low-speed rear impacts were conducted with some seats which had different characteristics. Volunteer's cervical vertebral motions were photographed with an X-ray cineradiographic system at a speed of 90 frames/s as well as the visible motions of dummy's and volunteer's were recorded. Although the tests were conducted under limited conditions, the results indicated the relationship between the occupant's visible motions, which are assumed to be closely related to the whiplash injury mechanism, and seat characteristics. It should be noted that the volunteer sled tests were discussed and approved by the Tsukuba University Ethics Committee and the volunteer submitted his informed consent in writing in line with the Helsinki Declaration.

Original languageEnglish
Pages (from-to)243-250
Number of pages8
JournalAccident Analysis and Prevention
Issue number2
Publication statusPublished - 2000 Mar
Externally publishedYes

ASJC Scopus subject areas

  • Human Factors and Ergonomics
  • Safety, Risk, Reliability and Quality
  • Public Health, Environmental and Occupational Health


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