Invers Dynamic Models

Univ.-Prof. biol. hum. Hendrik Schmidt

Learn more about invers dynamic models of the spine.

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Prevention and improvement of existing therapies

Inverse dynamic models were used to conclude from observed motions to forces and moments acting in the spine and at surrounding structures. These loads allow evaluation of the stress conditions in joints, joint cartilage, bone, muscles, tendons, and ligaments. Analyses can be performed for any static and dynamic load scenario during physical training or in daily routine.

The researches of our team aim to conclude from normal as well as from highly demanding daily activities to the loads in the spine. They intend to evolve methods for prevention and improvement of existing therapies.


For optical motion capturing we use the "Vicon" system. Small reflective marker balls were fixed on certain landmarks on the skin of the subjects. During the subject's motion in the laboratory cameras detect the marker positions.

Subsequently, the recorded motions were input into the invers dynamic models for analysing the resultant forces in all muscles and joints.



Publications

2015
Spinal loads as influenced by external loads: A combined in vivo and in silico investigation.

Thomas Zander, Marcel Dreischarf, Hendrik Schmidt, Georg Bergmann, Antonius Rohlmann
Journal of Biomechanics 2015; DOI:10.1016/j.jbiomech.2015.01.011, 2.75 Impact Factor
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2014
Considerations when loading spinal finite element models with predicted muscle forces from inverse static analyses.

Zhu R, Zander T, Dreischarf M, Duda GN, Rohlmann A, Schmidt H
Journal of Biomechanics 2013 Apr 26;46(7):1376-8, 2.75 Impact Factor
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2013
Lumbar spinal loads vary with body height and weight.

Han KS, Rohlmann A, Zander T, Taylor WR
Medical Engineering & Physics 2013 Jul;35(7):969-77, 1.84 Impact Factor
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2012
An enhanced and validated generic thoraco-lumbar spine model for prediction of muscle forces.

Han KS, Zander T, Taylor WR, Rohlmann A
Medical Engineering & Physics 2012 Jul;34(6):709-16, 1.84 Impact Factor
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Barbara Schiller

Secretariat Prof. Hendrik Schmidt

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