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ok I'll weight in with my opinion. If the motion is rapid, then slowing
it down to see each portion of the motion is essential to understanding
what is happening. Even if no quantitative data is extracted from the
video, I think recording the motion is necessary to analyzing it.
> -----Original Message-----
> From: Chris Welch [SMTP:chris_welch@hpt-biolink.com]
> Sent: Friday, August 14, 1998 10:36 AM
> To: BIOMCH-L@NIC.SURFNET.NL
> Subject: Re: locomotion, Little Debbie
>
> Quick thought regarding the recent 'catcher' post and response (point
> 2.
> below)...
>
> If you were interested in cellular activity you would be advised to
> use a
> microscope... in other words if you use simplistic limited means to
> view an
> activity you essentially get simplistic limited information. In this
> day
> and age, video analysis (2-D and 3-D) is essential if we are to fully
> understand movement and the ramifications... especially when dealing
> with
> performance and injury. The ability to perform even basic kinematics,
> hence
> quantifying the motion, pushes our understanding and assessments of
> that
> motion to new levels. Once we have an in-depth understanding of both
> performance and injury parameters we can then formulate the
> appropriate
> course of action to train or treat... JUST BECAUSE OUR ANALYSIS IS
> INVOLVED
> DOES NOT MEAN THAT OUR COURSE OF ACTION NEEDS TO BE COMPLICATED, ONLY
> THAT
> IT IS BASED ON A HIGHER LEVEL OF UNDERSTANDING.
>
> I think in Tim's case, he is better off using the full range of skills
> he is
> developing including mathematics, kinesiology, biomechanics and
> hopefully
> some basic mechanical engineering.
>
> I would like to hear other opinions!
>
> Sincerely,
> Chris Welch
>
>
> At 10:21 AM 8/14/98 -0400, you wrote:
> >Biomech'ers;
> >Comments on two issues: early locomotion studies and analyzing snack
> >cake catching.
> >1) The earliest attempt to analyze locomotion I know of was
> Aristotle.
> >See his, "On the Motion of Animals," where he describes the movements
> >of many animals, including humans.
> >
> >2) Regarding the analysis of catching Little Debbie snack cakes.
> First,
> >Tim, congratulations on your insight and welcome to ergonomics.
> Second,
> >consider the purpose of the video analysis. A full-fledged
> biomechanical
> >analysis, even 2D, requires a high degree of technical sophistication
> on the
> >part of the equipment and the experimenter -- and the results may not
> be
> >directly usable to determine good cake-catching abilities. Plus,
> whatever
> >results are found need to be relayed and taught to trainees. Since
> the
> >ultimate purpose is to train new employees, in particular to get them
> >past opening day jitters, let me suggest an alternate route. Get
> your hands
> >on DV Knudson and CS Morrison's book, "Qualitative Analysis of Human
> >Movement" (Human Kinetics, 1997). Here you can learn how to analyze
> >motion without the technological barriers, and further, learn how to
> use
> >this information in teaching the trainees. Knudson and Morrison
> primarily
> >use sports skills for examples, but the techniques can be applied to
> any
> >realm of human movement.
> >
> >Jeff Ives, Ph.D.
> >Dept. Exercise and Sport Sciences
> >Ithaca College, Ithaca, NY 14850
> >jives@ithaca.edu
> >
> >-------------------------------------------------------------------
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> >For information and archives: http://www.bme.ccf.org/isb/biomch-l
> >-------------------------------------------------------------------
> >
>
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it down to see each portion of the motion is essential to understanding
what is happening. Even if no quantitative data is extracted from the
video, I think recording the motion is necessary to analyzing it.
> -----Original Message-----
> From: Chris Welch [SMTP:chris_welch@hpt-biolink.com]
> Sent: Friday, August 14, 1998 10:36 AM
> To: BIOMCH-L@NIC.SURFNET.NL
> Subject: Re: locomotion, Little Debbie
>
> Quick thought regarding the recent 'catcher' post and response (point
> 2.
> below)...
>
> If you were interested in cellular activity you would be advised to
> use a
> microscope... in other words if you use simplistic limited means to
> view an
> activity you essentially get simplistic limited information. In this
> day
> and age, video analysis (2-D and 3-D) is essential if we are to fully
> understand movement and the ramifications... especially when dealing
> with
> performance and injury. The ability to perform even basic kinematics,
> hence
> quantifying the motion, pushes our understanding and assessments of
> that
> motion to new levels. Once we have an in-depth understanding of both
> performance and injury parameters we can then formulate the
> appropriate
> course of action to train or treat... JUST BECAUSE OUR ANALYSIS IS
> INVOLVED
> DOES NOT MEAN THAT OUR COURSE OF ACTION NEEDS TO BE COMPLICATED, ONLY
> THAT
> IT IS BASED ON A HIGHER LEVEL OF UNDERSTANDING.
>
> I think in Tim's case, he is better off using the full range of skills
> he is
> developing including mathematics, kinesiology, biomechanics and
> hopefully
> some basic mechanical engineering.
>
> I would like to hear other opinions!
>
> Sincerely,
> Chris Welch
>
>
> At 10:21 AM 8/14/98 -0400, you wrote:
> >Biomech'ers;
> >Comments on two issues: early locomotion studies and analyzing snack
> >cake catching.
> >1) The earliest attempt to analyze locomotion I know of was
> Aristotle.
> >See his, "On the Motion of Animals," where he describes the movements
> >of many animals, including humans.
> >
> >2) Regarding the analysis of catching Little Debbie snack cakes.
> First,
> >Tim, congratulations on your insight and welcome to ergonomics.
> Second,
> >consider the purpose of the video analysis. A full-fledged
> biomechanical
> >analysis, even 2D, requires a high degree of technical sophistication
> on the
> >part of the equipment and the experimenter -- and the results may not
> be
> >directly usable to determine good cake-catching abilities. Plus,
> whatever
> >results are found need to be relayed and taught to trainees. Since
> the
> >ultimate purpose is to train new employees, in particular to get them
> >past opening day jitters, let me suggest an alternate route. Get
> your hands
> >on DV Knudson and CS Morrison's book, "Qualitative Analysis of Human
> >Movement" (Human Kinetics, 1997). Here you can learn how to analyze
> >motion without the technological barriers, and further, learn how to
> use
> >this information in teaching the trainees. Knudson and Morrison
> primarily
> >use sports skills for examples, but the techniques can be applied to
> any
> >realm of human movement.
> >
> >Jeff Ives, Ph.D.
> >Dept. Exercise and Sport Sciences
> >Ithaca College, Ithaca, NY 14850
> >jives@ithaca.edu
> >
> >-------------------------------------------------------------------
> >To unsubscribe send UNSUBSCRIBE BIOMCH-L to LISTSERV@nic.surfnet.nl
> >For information and archives: http://www.bme.ccf.org/isb/biomch-l
> >-------------------------------------------------------------------
> >
>
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> For information and archives: http://www.bme.ccf.org/isb/biomch-l
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