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About 3DAH arrow About 3DAH arrow WT and Results arrow WT4
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WT4: Motion Analysis

Work Task Leader: SMI

Main Contributors: EPFL, UNIGE, IOR, INRIA

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The goal in this WT is to provide realistic dynamic descriptors related to muscle actuation in order to perform the active simulation of the musculoskeletal system in WT5 (EPFL). The basis for this task is the kinematical skeleton from WT5 on which three types of dynamic information are  crossed: posture/ forces from optical motion capture (MoCap) and force plates; internal motion from imaging modalities such as dynamic MRI (WT2); profile of muscle actuation from electromyography (EMG). SMI provides the required expertise for biomechanical (forward and inverse) simulation, and in in-situ kinematical, dynamic and physiological measurement. SMI defines proper protocols for simultaneous sEMG/ Mocap/ force plate acquisition, through benchmarked postures and movements and standardised sensors location; and will perform acquisition on a group of volunteers.  For this task, transfer of knowledge/ technology from EPFL, UNIGE, IOR and INRIA to SMI goes on:

  •  EPFL provides the kinematic skeleton and the software for its functional simulation (WT5).

  • UNIGE transfers some knowledge in anatomy-based motion capture and analysis, taking into account patient-specific 3D models.

  • IOR collaborates with SMI, such as in WT3, for bridging mechanical, functional and physiological aspects of sof-tissues.

  • INRIA provides motion data (WT2), extracted from images, for validating the dynamic descriptors.

Major Research achievements

  • Specification of a setup for skin mounted reflective markers.

  • Recording of different movement tasks (3D makers positions, ground reaction forces, 8 muscles activities).

  • Provide realistic dynamic descriptors.

  • Use anatomical data provided by WT2 (INRIA) to improve joint modeling (current research).

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