Finite element modeling and modal analysis of the human spine vibration configuration

Li Xin Guo, Yi Min Zhang, Ming Zhang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

41 Citations (Scopus)


This study was designed to investigate the modal characteristics of the human spine. A 3-D finite element model of the spine T12-Pelvis segment was used to extract resonant frequencies and modal modes of the human spine. By finite element modal analysis and harmonic response analysis, several lower vibration modes in the flexion-extension, lateral bending, and vertical directions were obtained and its vibration configurations were shown in this paper. The results indicate that the lowest resonant frequency of the model is in the flexion-extension direction. The second-order resonant frequency is in the lateral bending direction and the third-order resonant frequency of the T12-Pelvis model is in the vertical direction. The results also show that lumbar spinal vertebrae conduct the rotation action during whole body vibration (WBV). The vibration configurations of the lumbar spine can explore the motion mechanism of different lumbar components under WBV and make us to understand the vibration-induced spine diseases. The findings in this study will be helpful to understand WBV-related injury of the spine in clinics and the ergonomics design and development of mechanical production to protect human spine safety.
Original languageEnglish
Article number5898395
Pages (from-to)2987-2990
Number of pages4
JournalIEEE Transactions on Biomedical Engineering
Issue number10 PART 2
Publication statusPublished - 1 Oct 2011


  • Biomechanics
  • finite element (FE) analysis
  • harmonic analysis
  • lumbar spine
  • modal analysis

ASJC Scopus subject areas

  • Biomedical Engineering


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