Using static postures to estimate spinal loading during dynamic lifts with participant-specific thoracolumbar musculoskeletal models.

Autor: Banks JJ; Center for Advanced Orthopaedic Studies, Beth Israel Deaconess Medical Center, Boston, MA, United States; Department of Orthopaedic Surgery, Harvard Medical School, Boston, MA, United States., Alemi MM; Center for Advanced Orthopaedic Studies, Beth Israel Deaconess Medical Center, Boston, MA, United States; Department of Orthopaedic Surgery, Harvard Medical School, Boston, MA, United States., Allaire BT; Center for Advanced Orthopaedic Studies, Beth Israel Deaconess Medical Center, Boston, MA, United States., Lynch AC; Center for Advanced Orthopaedic Studies, Beth Israel Deaconess Medical Center, Boston, MA, United States., Bouxsein ML; Center for Advanced Orthopaedic Studies, Beth Israel Deaconess Medical Center, Boston, MA, United States; Department of Orthopaedic Surgery, Harvard Medical School, Boston, MA, United States., Anderson DE; Center for Advanced Orthopaedic Studies, Beth Israel Deaconess Medical Center, Boston, MA, United States; Department of Orthopaedic Surgery, Harvard Medical School, Boston, MA, United States. Electronic address: danders7@bidmc.harvard.edu.
Jazyk: angličtina
Zdroj: Applied ergonomics [Appl Ergon] 2023 Jan; Vol. 106, pp. 103869. Date of Electronic Publication: 2022 Aug 30.
DOI: 10.1016/j.apergo.2022.103869
Abstrakt: Static biomechanical simulations are sometimes used to estimate in vivo kinetic demands because they can be solved efficiently, but this ignores any potential inertial effects. To date, comparisons between static and dynamic analyses of spinal demands have been limited to lumbar joint differences in young males performing sagittal lifts. Here we compare static and dynamic vertebral compressive and shear force estimates during axial, lateral, and sagittal lifting tasks across all thoracic and lumbar vertebrae in older men and women. Participant-specific thoracolumbar full-body musculoskeletal models estimated vertebral forces from recorded kinematics both with and without consideration of dynamic effects, at an identified frame of peak vertebral loading. Static analyses under-predicted dynamic compressive and resultant shear forces, by an average of about 16% for all three lifts across the thoracic and lumbar spine but were highly correlated with dynamic forces (average r 2  > .95). The study outcomes have the potential to enable standard clinical and occupational estimates using static analyses.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2022 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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