Motion Capture Interface 

Marker trajectories for existing Gait3D repository model (red curves: measured; blue: segment-fixed markers)

Optimized trajectories

The development of a general interface between motion capture and musculo- skeletal modeling, done by PhD student Michael Skipper Andersen from the AnyBody Research Project, is now starting to show results.

So far the work has resulted in a general method for analysis of kinematically over-determinate systems, involving position, velocity and acceleration analysis. The current work is now on how to use optimization principles to also derive constant model parameters from measured marker trajectories such as model scaling, local marker coordinates, joint axis of rotations and so on. The work has mostly been on the theoretical side to extend the classical analysis methods to these practical cases in a general manner.

Michael recently presented some of the results in a public webcast. Get a copy of the presentation here.

The two figures above illustrate some preliminary results where the Gait3D model from the model repository is seen on the left hand side and the improved model on the right hand side.

Events: Meet AnyBody at...

19-21 March: DCAMM Symposium, Silkeborg, Denmark

30 March: Multiscale Symposium, Amsterdam, The Netherlands

19-20 April: Training Workshop, Munich, Germany

More Events are listed here

Upcoming webcast 

• 26 April
  Validation of the AnyBody version of the Dutch Shoulder Model by the in-vivo measurement of GH contact forces by Bergmann et al.

Please come this way to sign up.

Previous webcasts

Several previous webcasts have been recorded and are now available for download and replay. Recent ones are

• Kinematic Analysis of Over-determinate Systems
• Scaling strength in human simulation models
• A generic detailed rigid-body lumbar spine model
• The Seated Human

Jobs at Mid Sweden University: Sports technology and Biomechanics

Long-time colleborators of the AnyBody Research Project at Mid Sweden University are seeking 1. Chair of Mechanical Engineering, focusing on Sport Technology, 2. Chair of Mechanical Engineering, focusing on Biomechanics

Design of Badminton rackets

A PhD stipend involving AnyBody is currently available at Aalborg University.

Background and objectives of PhD stipend: The mechanics of the stroke of a badminton racket is not well described. Understanding it requires the study of multiple disciplines, all of which are rooted in classical mechanics: The athlete’s musculoskeletal system, the mechanical and structural properties of the racket, and the impact between racket and shuttle, thus combining a number of the specialties of Aalborg University, namely biomechanics and structural mechanics.

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Sincerely
The AnyBody Team.