Examination of a lumbar spine biomechanical model for assessing axial compression, shear, and bending moment using selected Olympic lifts

Moataz Eltoukhy, Francesco Travascio, Shihab Asfour, Shady Elmasry, Hector Heredia-Vargas, Joseph Signorile

Research output: Contribution to journalArticle

3 Scopus citations

Abstract

Background/Aims Loading during concurrent bending and compression associated with deadlift, hang clean and hang snatch lifts carries the potential for injury to the intervertebral discs, muscles and ligaments. This study examined the capacity of a newly developed spinal model to compute shear and compressive forces, and bending moments in lumbar spine for each lift. Methods Five male subjects participated in the study. The spine was modeled as a chain of rigid bodies (vertebrae) connected via the intervertebral discs. Each vertebral reference frame was centered in the center of mass of the vertebral body, and its principal directions were axial, anterior-posterior, and medial-lateral. Results The results demonstrated the capacity of this spinal model to assess forces and bending moments at and about the lumbar vertebrae by showing the variations among these variables with different lifting techniques. Conclusion These results show the model's potential as a diagnostic tool.

Original languageEnglish (US)
Pages (from-to)210-219
Number of pages10
JournalNeuroImage
Volume13
Issue number3
DOIs
StatePublished - Sep 2016

Keywords

  • Deadlift
  • Lumbar spine biomechanics
  • Motion capturing
  • Power clean
  • Snatch

ASJC Scopus subject areas

  • Neurology
  • Cognitive Neuroscience

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