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Comparison o f Kinematic Results Between METU-KISS & Ankara University-VICON Gait Analysis Systems

Comparison o f Kinematic Results Between METU-KISS & Ankara University-VICON Gait Analysis Systems. EZGİ CİVEK supervised by: Asst. Prof. Dr. Ergin Tönük Prof. Dr. Turgut Tümer. Outline. Introduction Gait Analysis Motion Capture Systems Comparison of the two systems

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Comparison o f Kinematic Results Between METU-KISS & Ankara University-VICON Gait Analysis Systems

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  1. Comparison of Kinematic Results Between METU-KISS & Ankara University-VICON Gait Analysis Systems EZGİ CİVEK supervised by: Asst. Prof. Dr. Ergin Tönük Prof. Dr. Turgut Tümer

  2. Outline • Introduction • Gait Analysis • Motion Capture Systems • Comparison of the two systems • Comparison of the kinematic results • Future Studies

  3. Objective To compare the kinematic results of two different gait analysis systems. Data Acquisition Data Analysis Performance Methodology • Exchanging the motion data between KISS & VICON. • Studying the same subject on each system.

  4. Objective To make KISS compatible with a common widely used file format. To enlarge the database available.

  5. Gait Analysis Analysis of the mechanics of human body during walking, stair ascending/descending, obstacle avoidance.

  6. Gait Analysis Gait analysis plays a key role in: • Diagnosis of disorders in lower extremity • Decision making before operations • Evaluation of prosthetic joint replacements • Comparison of gait parameters before and after operations • Studies in orthotics, amputees, athletic injuries

  7. Human Gait

  8. Motion Capture Systems SOFTWARE • Data Acquisition • Calculation of Gait Parameters HARDWARE • CCD Cameras • Markers • Force Plate(s) • EMG Unit

  9. Marker Locations

  10. KISS VICON Commercial system 5 cameras 2 force plates VICON 370 Vicon Clinical Manager Helen Hayes Marker set Locally developed in ME 6 cameras 2 force plates KISS – DAQ KISS – GAIT Helen Hayes Marker set

  11. File Formats input for kinematic data analysis

  12. C3D - A 3D Biomechanics Data Standard • Developed by Andrew Dainis in 1987. • Used by almost all commercial motion capture systems.

  13. Converting *.yor file to *.c3d • Export the coordinate data from *.yor file as *.txt format. • Arrange the data in text file according to c3d format. • Create *.c3d file by a program called ‘C3D Editor’.

  14. KISS VICON

  15. VICON KISS

  16. Future Studies • Converting *.c3d to *.yor file format. • Studying the same subject in both systems. • Writing a program for the arrangenments of files required in the conversion process.

  17. THANK YOU!

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