Characteristics of dynamic cervical vertebral kinematics for female and male volunteers in low-speed rear impact, based on quasi-static neck kinematics

Fusako Sato, Taichi Nakajima, Koshiro Ono, Mats Svensson, Koji Kaneoka

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

The purpose of this study is to clarify the dynamic characteristics of inertia-induced cervical vertebral kinematics for both female and male volunteers in low-speed rear impact conditions by comparing quasi-static muscle-induced neck kinematics. Two series of volunteer tests were used. One is data from a rear impact sled test series with 2 females and 4 males. The second set of data is from a voluntary neck bending test series with 4 females and 9 males. Cervical vertebral motions were measured by a cineradiography system. The same volunteers in the first test series also participated in the second test series. C4/C5 through C6/C7 showed larger extension angle in the peak S shape than maximum voluntary retraction for females. In contrast, the peak S shape was in the maximum voluntary retraction for males. The rearward displacements at C6/C7 in the peak S shape exceeded the maximum voluntary extension for females. The vertebral angular displacement at C5/C6 was greatest in the peak extension and exceeded the voluntary extension, especially for females. The vertebral normalised displacements in X-direction at C5/C6 and C6/C7 showed larger rearward displacements in the peak extension than the voluntary extension, and exceeded the maximum voluntary extension for both genders.

Original languageEnglish
Title of host publication2015 IRCOBI Conference Proceedings - International Research Council on the Biomechanics of Injury
PublisherInternational Research Council on the Biomechanics of Injury
Pages261-277
Number of pages17
Publication statusPublished - 2015
Event2015 International Research Council on the Biomechanics of Injury, IRCOBI 2015 - Lyon, France
Duration: 2015 Sep 92015 Sep 11

Other

Other2015 International Research Council on the Biomechanics of Injury, IRCOBI 2015
CountryFrance
CityLyon
Period15/9/915/9/11

Fingerprint

Biomechanical Phenomena
Volunteers
Kinematics
Neck
Bending tests
Muscle
Cineradiography
Neck Muscles

Keywords

  • Cervical vertebral kinematics
  • Neck
  • Rear impacts
  • Volunteers
  • Whiplash

ASJC Scopus subject areas

  • Physical Therapy, Sports Therapy and Rehabilitation
  • Biotechnology
  • Orthopedics and Sports Medicine
  • Biomedical Engineering

Cite this

Sato, F., Nakajima, T., Ono, K., Svensson, M., & Kaneoka, K. (2015). Characteristics of dynamic cervical vertebral kinematics for female and male volunteers in low-speed rear impact, based on quasi-static neck kinematics. In 2015 IRCOBI Conference Proceedings - International Research Council on the Biomechanics of Injury (pp. 261-277). International Research Council on the Biomechanics of Injury.

Characteristics of dynamic cervical vertebral kinematics for female and male volunteers in low-speed rear impact, based on quasi-static neck kinematics. / Sato, Fusako; Nakajima, Taichi; Ono, Koshiro; Svensson, Mats; Kaneoka, Koji.

2015 IRCOBI Conference Proceedings - International Research Council on the Biomechanics of Injury. International Research Council on the Biomechanics of Injury, 2015. p. 261-277.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Sato, F, Nakajima, T, Ono, K, Svensson, M & Kaneoka, K 2015, Characteristics of dynamic cervical vertebral kinematics for female and male volunteers in low-speed rear impact, based on quasi-static neck kinematics. in 2015 IRCOBI Conference Proceedings - International Research Council on the Biomechanics of Injury. International Research Council on the Biomechanics of Injury, pp. 261-277, 2015 International Research Council on the Biomechanics of Injury, IRCOBI 2015, Lyon, France, 15/9/9.
Sato F, Nakajima T, Ono K, Svensson M, Kaneoka K. Characteristics of dynamic cervical vertebral kinematics for female and male volunteers in low-speed rear impact, based on quasi-static neck kinematics. In 2015 IRCOBI Conference Proceedings - International Research Council on the Biomechanics of Injury. International Research Council on the Biomechanics of Injury. 2015. p. 261-277
Sato, Fusako ; Nakajima, Taichi ; Ono, Koshiro ; Svensson, Mats ; Kaneoka, Koji. / Characteristics of dynamic cervical vertebral kinematics for female and male volunteers in low-speed rear impact, based on quasi-static neck kinematics. 2015 IRCOBI Conference Proceedings - International Research Council on the Biomechanics of Injury. International Research Council on the Biomechanics of Injury, 2015. pp. 261-277
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