Spinal curvature while seated in light armoured vehicle (LAV) operational requirements integration task (LORIT) passenger seat mock-up / Capt. Gabrielle Chafé, Rania Issa, DRDC - Valcartier Research Centre.: D68-9/030-2020E-PDF

"We wanted to know soldier spine curvature while seated in the light armoured vehicle (LAV) LAV operational requirements integration task (LORIT) passenger seat. Recent conflicts have highlighted discrepancies in the injury risk criteria for the lower back. To breach these discrepancies, a biofidelic instrumented spine is being developed. Soldier seated spine curvature will inform the development of the instrumented spine. Spine curvature was measured with a Valdeo Shape spinal mouse in a laboratory environment on a pseudo-LAV LORIT passenger seat. The test conditions compared the effects of personal protective equipment (PPE) and the use of a footrest on spinal curvature. We observed a cumulative effect on pelvic tilt and the lumbar spine when the footrest was used while wearing PPE. The spinal curvature findings will assist in the development of the biofidelic instrumented spine. The understanding that soldier posture in theatre will change according to their PPE and the use of a footrest should be considered when developing injury risk criteria, testing protocols, as well as survivability mechanisms"--Abstract, page i.

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