Regensburg 2019 – wissenschaftliches Programm
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BP: Fachverband Biologische Physik
BP 12: Poster II
BP 12.80: Poster
Dienstag, 2. April 2019, 14:00–16:00, Poster B2
Load distribution among the main structures of a passively flexed lumbar spine — Falk Mörl1, Syn Schmitt2, •Julia Maria Riede2, and Michael Günther2 — 1Biomechanics & Ergonomics, FSA mbH Erfurt, Germany — 2Biomechanics and Biorobotics, SimTech, Universität Stuttgart, Germany
Mechanical loads may induce degeneration of spinal structures. It is still unknown how the load during spine motion is distributed among the spine’s main structures: muscles, vertebrae and their connecting joints, ligaments and intervertebral discs. Currently there exists no measurement method to capture the function of all spinal structures at the same time. Therefore, computer simulations are the method of choice to overcome the need of in vivo measurements. Still, the model with its initial conditions has to reproduce the biophysics of the human spine.
To get a good prediction for the load distribution of spinal structures we therefore combined experimental with simulation methods. On the simulation side we have a valid forward dynamics multibody model of the human spine. Hence we obtain valid simulation results that can subsequently be compared to the experimental results. On the experimental side stands a precise and objective measurement of human lumbar spine flexion torque. Both the experiment and the simulation were laid-out for a passive spine, i.e. no muscle activation, in the lumbar region. This allows for a detailed investigation of load distribution ensuring reasonable basic conditions for a passive human spine.