Lumbar Spine Musculoskeletal Physiology and Biomechanics During Simulated Military Operations

Abstract

This study evaluated the relationship between 3D geometry of the lumbar spine, under different loading conditions and positions, and the pathophysiology of the intervertebral disc and lumbar trunk muscles. 43 Marines were scanned using upright MRI in operationally relevant loading conditions with minimum load, 39 of these Marines were also scanned in a high-resolution MRI scanner to muscle and disc pathophysiological assessment. Significant decreases in lumbar lordosis were found through all levels except L1-L2 when sitting. When prone on elbows, the only increase in lumbar lordosis was found at L5-S1. A caudal increase in fat fraction of the multifidus was observed, with no significant increase in the erector spine. No significant correlations were found between disc injury and muscle pathophysiology.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 2016
Accession Number
AD1019642

Entities

People

  • Ana E Rodriguez-Soto
  • David B Berry
  • Karen Kelly
  • Samuel R Ward
  • Sara Gombatto

Organizations

  • University of California, San Diego

Tags

DTIC Thesaurus Topics

  • Active Duty
  • Biomechanics
  • Body Armor
  • Bone Diseases
  • High Resolution
  • Medical Personnel
  • Military Operations
  • Musculoskeletal Physiology
  • Pain
  • Pathology
  • Physiology
  • Rehabilitation
  • Skeletal Muscle
  • Spine
  • Three Dimensional
  • Traumatic Stress Disorder
  • Warfare

Fields of Study

  • Medicine

Readers

  • Exercise and Sports Science.
  • Medical Imaging.
  • Neurotrauma and Rehabilitation Medicine.