1 New Message
Digest #4618
Message
Mon Oct 15, 2012 10:14 pm (PDT) . Posted by:
"JRTELLE@AOL.COM"
Is not that an unfair advantage?
Jerry Telle
Lakewood CO USA
-----Original Message-----
From: CoachJ1 <CoachJ1@aol.com >
To: Supertraining <Supertraining@yahoogroups.com >
Sent: Sun, Oct 14, 2012 12:52 pm
Subject: Re: [Supertraining] The Race that Shocked the World
Hi Jerry!
In a message dated 10/13/2012 6:59:29 A.M. Central Daylight Time,
JRTELLE@AOL.COM writes:
Ken!! What's your take?
And I watched w/ great interest that fellow racing in the Olympics w/
artificial legs!! Remembering our conversations I think this will soon border
on excessive advantage?? And I didn't notice much "pogo sticking'? But more
linear forces??
It was interesting in that Pistorius was beaten in the paralympic 200 by
Oliveira, yet Pistorius's immediate post race comments suggested that
Oliveira had an unfair advantage because he had lengthened his prosthetics,
thereby "running tall." It is ironic in that this was the charge brought
against Pistorius himself, which he denied.
By focusing on rules which should prevent paralympians from lengthening
their prosthethics, Pistoroius is, in effect, kind of acknowledging that there
is indeed an advantage in running on Cheetah carbon fiber blades,
something which he has always argued wasn't the case--despite the Weyand/Bundle
findings (two of the researchers who had tested Pistorius at Rice University)
indicating that his carbon fiber blades did indeed provide an advantage:
"The stride frequencies attained by our double amputee sprint subject
[Pistorius] at his top speed were greater than any previously recorded during
human sprint running that we are aware of. They were 15.8% greater than
those of the intact limb athletes tested in the laboratory (2.56 vs. 2.21 [0.08]
s-1), and 9.3% greater than those of elite sprinters running at 11.6 m/s
overground (2.34 [0.13] s-1). The extreme stride frequencies of our amputee
subject were the direct result of how rapidly he was able to reposition
his limbs. His swing times at top speed (0.284 s) were 21% shorter than those
of the athletes tested in the laboratory (0.359 [0.019] s) and 17.4%
shorter than the first two finishers (0.344 s) in the 100 m dash at the 1987
World Track and Field Championships.
We consider stride and step frequencies nearly 10% greater than those
measured for two of the fastest individuals in recorded human history to be
artificial and clearly attributable to a non-biological factor: the mass of our
amputee subject's artificial lower limbs is less than half that of fully
biological lower limbs "
Ken Jakalski
Lisle High School
Lisle, IL USA
[Non-text portions of this message have been removed]
[Non-text portions of this message have been removed]
Jerry Telle
Lakewood CO USA
-----Original Message-----
From: CoachJ1 <CoachJ1@aol.
To: Supertraining <Supertraining@
Sent: Sun, Oct 14, 2012 12:52 pm
Subject: Re: [Supertraining] The Race that Shocked the World
Hi Jerry!
In a message dated 10/13/2012 6:59:29 A.M. Central Daylight Time,
JRTELLE@AOL.
Ken!! What's your take?
And I watched w/ great interest that fellow racing in the Olympics w/
artificial legs!! Remembering our conversations I think this will soon border
on excessive advantage?? And I didn't notice much "pogo sticking'? But more
linear forces??
It was interesting in that Pistorius was beaten in the paralympic 200 by
Oliveira, yet Pistorius's immediate post race comments suggested that
Oliveira had an unfair advantage because he had lengthened his prosthetics,
thereby "running tall." It is ironic in that this was the charge brought
against Pistorius himself, which he denied.
By focusing on rules which should prevent paralympians from lengthening
their prosthethics, Pistoroius is, in effect, kind of acknowledging that there
is indeed an advantage in running on Cheetah carbon fiber blades,
something which he has always argued wasn't the case--despite the Weyand/Bundle
findings (two of the researchers who had tested Pistorius at Rice University)
indicating that his carbon fiber blades did indeed provide an advantage:
"The stride frequencies attained by our double amputee sprint subject
[Pistorius] at his top speed were greater than any previously recorded during
human sprint running that we are aware of. They were 15.8% greater than
those of the intact limb athletes tested in the laboratory (2.56 vs. 2.21 [0.08]
s-1), and 9.3% greater than those of elite sprinters running at 11.6 m/s
overground (2.34 [0.13] s-1). The extreme stride frequencies of our amputee
subject were the direct result of how rapidly he was able to reposition
his limbs. His swing times at top speed (0.284 s) were 21% shorter than those
of the athletes tested in the laboratory (0.359 [0.019] s) and 17.4%
shorter than the first two finishers (0.344 s) in the 100 m dash at the 1987
World Track and Field Championships.
We consider stride and step frequencies nearly 10% greater than those
measured for two of the fastest individuals in recorded human history to be
artificial and clearly attributable to a non-biological factor: the mass of our
amputee subject's artificial lower limbs is less than half that of fully
biological lower limbs "
Ken Jakalski
Lisle High School
Lisle, IL USA
[Non-text portions of this message have been removed]
[Non-text portions of this message have been removed]
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