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  • Summary of responses to motion analysis systems for beginners

    Below is an e-mail that I sent to the members of the listserv regarding
    recommendations for motion analysis systems for beginners. It is
    followed by the responses. They were very helpful and most include
    links. I greatly appreciate your input.

    Sincerely,
    John Mclester

    I would like to know some opinions on various motion analysis systems in
    terms of their ease of use for those who may not be completely
    proficient in the area of biomechanical analysis (e.g. universities that
    are first-time buyers). I know that everyone has their favorites, but I
    would like to know about features that specifically help the novice.

    Thanks everyone,
    John McLester
    Western Kentucky University

    Dear John McLester.
    Our KineView 2D motion analysis system is very easy to use. The system is
    based on standard PC and camcorder. There are interactive tools that are
    easy to understand. You can record, browse and analyse data all in one
    program and you can export data to other applications. You can measure
    positions, distances, angles and time.
    The system is also very portable. In the field you really don't need more
    than the camcorder. But if you want to analyse in the field you can run
    KineView on laptop.

    Besides of all the general purpose 2D features you can also make a quick
    gait report in less than 5 minutes.

    For further details please check our web site (www.kine.is) and don't
    hesitate to contact me if you have any questions or comments.
    Best regards
    Baldur

    -----------------
    Baldur Thorgilsson, baldur@kine.is
    Kine ehf, www.kine.is
    Baejarhraun 8, 220 Hafnarfjordur, Iceland
    tel: +354 580 8300, +354 5808302, fax +354 5808309
    Hi John,



    I have been working at the University of Waterloo in the department of
    Kinesiology for 6 years now and we use the Optotrak system by Northern
    Digital Inc. It is an active marker system, which in the long run when
    it comes to doing analysis, is very helpful. The thing that most people
    like about Optotrak is that you can easily write your own program to do
    any anslysis and are not handcuffed into using their data analysis
    packages. Optotrak works very well with C-Motion's software, Visual
    3-D. If you want to learn more check out their web site: www.ndigital.com


    Mike

    Hi: John

    My quick suggestion is find out what you need first.
    There are three main (commericially available) motion capture system based on
    the mechanism of tracking object. Mechanical-based, optical-based, and
    magnetic-based motion capture system. Each of them has it pro and cons. there
    is a slides for compariing three kinds system may be helpful to you. You may go
    to www.gatech.edu to find it.

    good luck.

    Leo Wu

    Hi John,

    We have been using systems from Motion Analysis Corp. for the
    past fifteen years. We started with one of their original 2-D single
    camera systems and have evolved to an 8 camera 3-D system. We also have
    both force plates and EMG interfaced with the system. We use MAC's EVA
    software (both the older version and the more recent Real-time version)
    for data collection and processing, and both OrthoTrak and KinTrak for
    data analysis. The system is heavily used by students (graduate and
    undergraduate) as a reglar part of instruction, as well as for thesis
    and dissertation research. The students are able to become reasonably
    proficient in using the system with a modest amount of instruction and
    periodic technical assistance. I think that key (regardless of what
    hardware/software is used) is to have someone on the staff who takes the
    initiative to become really proficient with the system. This requires
    some effort, but it is certainly manageable for anyone with a reasonable
    amount of technical interest/aptitude. We have been very pleased with
    our relationship with MAC, and I personally believe that they are the
    best in the business. Feel free to contact me with any specific
    questions.

    Best Wishes
    Chuck Armstrong - Dept. of Kinesiology
    University of Toledo

    Hey John,

    We recently purchased a VICON system and I have to say the people there have
    been great. They have tech support located in San Diego that came out and
    trained us on the system, and you can post questions on support.vicon.com and
    they get back to you within the hour. I would highly recomend them if you're a
    beginner like us. Hope this helps!

    Brian Glaister
    Research Assistant
    Harrington Department of Bioengineering
    and
    The Center for Rehabilitation Neuroscience and Rehabilitation Engineering at
    The Biodesign Institute at Arizona State University


    John,
    We are using a software called MotionMonitor (www.innsport.com) that integrates with several different kinematic and analog data acquisition systems. We purchased this integrated system to facilitate kinematic data collection for our (primarily) clinical research fellows who have limited technical backgrounds. We have used Polhemus Fastrak, Ascension Flock of Birds, and Northern Digital Optotrak hardware. We have seen an increase in fellow's understanding as well as a reduction in data loss and fellows' frustration. If you need any more specific information, please feel free to contact me.
    Thanks!
    Kristin Zhao


    Hi John,

    I work with Vicon Peak, a company that develops motion measurement
    systems to suit the novice as well as the most sophisticated researcher.
    The Peak Motus Basic system, our starter system, is a MS Windows
    compliant product that has the essentials for 2-D analysis: video
    capture from camcorders, user specified spatial models (single point to
    multi-point multi-body setup), angle and center of mass setup,
    computer-assisted manual digitizing, digital filtering and data display
    featuring combined stick figure, video, and Cartesian graph replay. We
    have many universities that use the system for undergraduate Kinesiology
    labs to learn the fundamentals of data acquisition and kinematic
    computations.

    In addition, the software can be upgraded to full-featured
    configurations, including 3-D collection and analysis, automatic marker
    tracking, analog acquisition from force platforms and EMG, real-time
    optical capture, and kinetic calculations.

    More information about our options are available at www.viconpeak.com.

    Regards,

    Gary Scheirman

    Hi John,



    I posted an enquiry for a motion system suitable for outdoors earlier
    this year. I received a number of feedback which I think may be useful to
    you. Below is my summary posted a couple of weeks ago.



    Hope it helps.



    May you be well and Happy!



    Regards,

    Kelvin Hau-Kong CHAN

    Member of Technical Staff

    DSO National Laboratories

    Defence Medical & Environmental Research Institute

    (Centre for Human Performance)



    27 Medical Drive #11-00

    Singapore 117510



    DID: 64857164

    Fax: 6485 7172



    ================================================== ====



    Dear all,



    Earlier this year, I posted an enquiry on suggestions of motion capture
    system with outdoor capabilities. I was overwhelmed with many enthusiastic
    responses and would like to sincerely thank those who have replied. I
    apologise for not being able to reply to all the responses but am
    appreciative of the advice everyone has provided. Some list members have
    also requested that I post a summary of responses. In order to avoid any
    conflict or disclosure of any confidential information, I have summarised
    some of the suggestions together with my posting as follows:





    --------------------------------------------------------------------------------



    --------------------------------------------------------------------------------



    ----- Original Message -----
    From: Chan Hau Kong

    To: Biomch-L@nic.surfnet.nl

    Sent: Friday, January 14, 2005 1:17 PM

    Subject: Outdoor Motion Capture System





    Dear Members,



    I am planning to purchase an outdoor motion capture system for
    biomechanics research and need some advice from experienced users of such
    systems.



    While there is a plethora of motion capture system in the market, the
    system I need has to be able to function well in an outdoor environment as
    certain constraints do not allow me to reproduce the setting in a
    laboratory. Because of this outdoor requirement, certain traditional motion
    capture system (e.g. Vicon) is not suitable due to occlusion, environment
    interference or large number of equipment needed to be set up. Has anyone
    evaluated a system suitable for outdoor use?



    I came across a couple of motion capture system, namely Gypsy Gyro by
    Meta Motion, Analogus and Animazoo; and Shapewrap by Measurand but is
    sceptical about their accuracy, software roboustness and suitability for
    biomechanics research. Hope to hear some feedback from users of these
    systems.



    Thank you very much for your time and advice!



    Regards,

    Kelvin Chan Hau Kong









    --------------------------------------------------------------------------------



    --------------------------------------------------------------------------------





    Markers/Video Based System



    1. Qualisys Precision Motion Capture System (www.qualisys.se) I have
    personally witnessed a demonstration of this system under bright day light
    in an open field using passive markers and am convinced that it can be used
    in an outdoor environment.



    2. Codamotion by Charnwood Dynamics (www.charndyn.com) An active marker
    system.



    3. APAS (Ariel Performance Analysis System) (http://www.arielnet.com/) A
    video based motion capture system. Users have testified that it is capable
    of outdoors capture since it is video based. It is relatively cheap and a
    trial version can be downloaded from the website.



    4. SIMI Reality Motion Systems (http://www.simi.com/en/) Also a video
    based system.



    5. Motion Analysis Coporation (http://www.motionanalysis.com/) A well
    established optical motion capture system, but I am still not able to
    verify/witness its capability in outdoor environment under bright sunlight.



    6. KineView (www.kine.is) A 2D windows based motion analysis software
    that works on video capture.



    Inertial/Magnetic System & Others



    1. Xsens Motion Technologies (http://www.xsens.com/) Based on a network
    of inertial measurement units that is placed on each limbs.



    2. Ascension Technology Coporation (http://www.ascension-tech.com/) Using
    Advanced DC Magnetic Technology.



    3. Minisun (http://www.minisun.com/) An interesting device for physical
    activity assessment, portable gait analysis, energy expenditure measurement
    and functional capacity evaluation, but not exactly a motion capture system.



    Thanks again!

    May you be well and Happy!


    Regards,

    Kelvin Chan Hau Kong

    DSO National Laboratories

    Defence Medical & Environmental Research Institute

    (Centre for Human Performance)

    27 Medical Drive #11-00

    Singapore 117510

    DID: 64857164

    Fax: 6485 7172
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