Study Group Biomechanics

Research Topics

The biomechanics research groups are concerned with projects in motion analysis with the software SIMI°Motion and in computer modelling with the engineering software tool SIMPACK.

Motion analysis

Investigation of kinematics and structure of movements in sports

Flick-Flack Filmaufnahme und Kinegramm

Within the framework of in Bachelor's or Master's theses the kinematis of specific movements in sports are analysed. For 2D or 3D analysis the motion sequences were recorded with digital high speed cameras.

By the use of suitable calibration the motion pictures can be extracted to the movement of stick figures. With this method the time curves for the coordinates of defined markers and joint angles as well as their velocities and accelerations can be depicted.

Additional the kinematics of the individual center of gravity can be calculated by the use of an appropriate mathematical model with defined segment masses (Hananvan model) with the input of anthropometrical data of the test person.

With motion analysis it is possible to study movements regarding special aspects of technics and performance.

Computer modelling

for the calculation of the load in internal structures of the human body during movements in sports or in daily life.

Flick-Flack Modellierung

In order to determine the load in internal structures of the human body during movements in sports the development of appropriate computer models which are careful adapted to the morphology and mechanical properties of the biological materials of the human body is necessary. Therefore accurate validation is an essential prerequisite.

For computer modelling in our research group the engineering software tool SIMPACK for multi-body-simulation (mbs) is used.

With the developed computer models the transmitted forces and torques in the joints, ligaments and discs of the spine can be calculated. Therefore the prediction of the load in these structures of the human body is possible.

A further task for the development of computer modelling is the application in medicine. There sophisticated models can be used as a computerassisted device for simulation in the planning phase of surgery.

MTI-Logo

In this field collaborations with the hospitals in the region of Koblenz were established. Such research projects led to the foundation of the cooperation institute "MTI Mittelrhein" which serves as a platform for the configuration of interdisciplinary research projects in medicine, science and information technologies.


Team

Head of study group

Main focus: Computer modelling

 

Staff

Main focus: Motion analysis and hardware support

 

Project team members

Students of the BA and MA degree programs

 


Projects

MOTION ANALYSIS WITH SIMI°MOTION

Example

Upward circle

Project Team

Christian Satony

Kipp-Aufschwung

Motion Analysis

Video-Download

Kipp-Aufschwung Video Poster

Video: Christian Satony

Preparation phase

Kipp-Aufschwung Vorbereitungsphase

Main functional phase

Kipp-Aufschwung Hauptfunktionsphase

 


COMPUTERMODELLING WITH SIMPACK

Project Whole Body Modelling

Ganzkörpermodellierung

In order to determine internal loads in the human body during movements in sports with high accelerations as they occur for example in the landing phase after drop jumps from different heights, suitable computer models were developed. With these mechanical models the transmitted forces and torques in the joints and in the structures of the lumbar spine were calculated.

Former and active project team members

Sabine Bauer, Johanna Flesch, Nils Klein, Thijs Schütteler, Sascha Blacha

 


Project Computermodel of the knee joint

Kniegelenk

In order to simulate the kinematics of the knee joint precisely, a computer model inclusive all involved structures is developed. One goal is the building up of individual models based on CT scans from patients for diagnostics in orthopaedics.

Former and active project team members

Roland Aller, Sascha Blacha, Johann Franz, Dominik Steinbacher

Project partner

Dr. med. Dirk Holsten
Chefarzt der Klinik für Orthopädie, Unfallchirurgie, Arthroskopische Chirurgie und Sportorthopädie
Katholisches Klinikum Koblenz-Montabaur, Brüderhaus

 


Project Computermodel of the hip

Hüftgelenk

One aim is the calculation of the pressure distribution over the bearing area
in order to determine the load in the hip joint during stance phase in walking.
Another application in medicine for computer modeling is the individual
3D simulation in the planning phase of surgery for the exact positioning of hip implants.

Former and active project team members

Thijs Schütteler

Project partners

  • Prof. Dr. Thomas Götz, Mathematisches Institut, FB3, Universität Koblenz-Landau, Campus Koblenz
  • Orthopädische Klinik St. Josefs-Hospital, Wiesbaden

 


Project Computermodel of the lumbar spine

Lendenwirbelsäule

In order to calculate the load in the fine structures of the lumbar spine a
3D computer model was developed. During action of an external force on top
the resultant motion as well as the transmitted forces and torques in the discs, ligaments and facet joints can be determined.

One goal is the building up of individual simulation models of patients as an assisting device for diagnostic and for the planning phase of surgery.

Former and active project team members

Sabine Bauer (Promotion), Ulrike Hausen (Promotion), Johanna Flesch

Project partners

  • Dr. med. Francis Kilian, Chefarzt der Klinik für Wirbelsäulenchirurgie Katholisches Klinikum Koblenz-Montabaur, Brüderhaus
  • Klinik und Poliklinik für Neurochirurgie, Universitätsmedizin Mainz

 


Project Calculation of the actual center of rotation in functional units of the lumbar spine during rotational movements

Wirbel
  • Calculation of the course of the 2D center of rotation during flexion for the intact disc as a criterion for a natural movement
  • Stabilisation in the case of a degenerated disc with the help of a dynamic implant and reconstruction of the natural course of the 2D center of rotation
  • Goal: Calculation of the 3D center of rotation and improvement of the positioning of the screws of the implant.

Former and active project team members

Daniel Enke, Ulrike Hausen, Anna Strunk

Project partners

  • Prof. Dr. Rolfdieter Frank, Prof. Dr. Thomas Götz und Robert Rockenfeller
    Mathematisches Institut, FB3, Universität Koblenz-Landau
  • Klinik und Poliklinik für Neurochirurgie, Universitätsmedizin Mainz

 


Project Muscle modelling

Muskelmodellierung
  • Implementation of characteristic equations for the muscle forces in the lower extremities of the skeletal model of the human body in order to control the human movements like jumping and landing procedures.
  • Implementation of muscle forces into the different computer models for knee and hip joint as well as for the lumbar spine

Former and active project team members

Johann Franz, Nicolas Damm

Project partners

  • Prof. Dr. Thomas Götz, Robert Rockenfeller, Mathematisches Institut, FB3, Universität Koblenz-Landau
  • The Human Movement Simulation Lab, Institut für Sportwissenschaft, Universität Stuttgart