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Blade runner (Oscar Pistorius)

Discussion in 'Biomechanics, Sports and Foot orthoses' started by Simon Spooner, Jan 15, 2008.

Tags:
  1. Lois_B

    Lois_B Member

    She was getting preparations ready for Valentines day it appears as her last tweet regarded plans for today. Don't think she was trying to rob him.
     
  2. blinda

    blinda MVP

    This confirms what I have suspected all along; Valentines day is an annual celebration of emotion-themed merchandising and bad for your health. In fact, spending time with your partner is fatal for a relationship, experts have warned....

    Spending time together will kill a relationship
     
  3. Paul Bowles

    Paul Bowles Well-Known Member

    Wow - tough neighborhood! Poor bloke.
     
  4. Even so, he hasn't got a leg to stand on.
    I'm here all week.
     
  5. Craig Payne

    Craig Payne Moderator

    Articles:
    8
    How is this for irony:
    Nike ad referencing 'bullet' pulled from Pistorius' site
     
  6. fishpod

    fishpod Well-Known Member

    Poor bloke hell no poor girl he glocked her big time this is a domestic not a burglary. Just wait and see I wonder will he get off like oj Simpson.
     
  7. Brings a whole new meaning to "taking the missus out on Valentines Day" and it can't be the first time that someone's woken up legless on valentines before shooting up the wife imagining it was somebody else....
     
  8. I think the title of this thread needs to be changed to Blade Gunner (Oscar Pistorius).:rolleyes:
     
  9. Dr. Steven King

    Dr. Steven King Well-Known Member

    Aloha,

    I feel bad for Reeva and her freinds and family. All i read was she was cute and nice,,,and we need more people like that around...

    I also feel sad for Nike and thier continued recient failure of sports icon marketing.
    i.e. Micheal Vick, Lance Armstrong, Joe Paterno, Tiger Woods, Oscar Pistorius...

    Mahalo,
    Steve
     
  10. Phil Rees

    Phil Rees Active Member

    Can I just remind everyone that a woman is dead ... a young life has been taken away .... not a subject for jokes
     
  11. 5 Years. Didn't have a leg to stand on.
     
  12. Boom boom ;)

    Will serve 10 months and probably under house arrest due to time served and other legal bits I can't be bothered reading.

    Will not bemable to run IPC events for 5 years and that includes Rio, Otto Bock his old sponsor have indicated never to sponsor again.

    As a odd by product of twitter and social media and the need to be 1st.

    The judge was reading some legal stuff, he gave an example of an old case, where the person was acquitted, many News papers went out with him be acquitted.

    Only to have to back track and wait for the judge to read the ruling for this case.


    I guess it is ok as 95% of society who read the false info have forgottened and moved on to tell their followers what they ate for lunch
     
  13. NewsBot

    NewsBot The Admin that posts the news.

    Articles:
    1
    Press Release:
    Running with Prosthetic Lower-Limbs: An Advantage or Disadvantage?
    29 June 2015 Bournemouth University
     
  14. Dr. Steven King

    Dr. Steven King Well-Known Member

    Aloha,


    “Furthermore, this study adds further weight to suggest that the use of such technology in able-bodied sport needs to be carefully considered in the future – the prosthesis’ spring-like design could propel an athlete in a way that is not quite like the able bodied athletes.”

    Yes you should carefully consider the future, really you should.

    What will happen when folks realize that combining composite materials with simple machine mechanisms will even further enhance the basic spring mechanism currently utilized in the current orthotics and prosthetics?

    Will they try to ban them?

    Can we really prove what the human element is to compare to the manufactured element? The IOC could not and that is why these great athletes get to continue their sport.

    Here is the elephant in the room.
    If I, as a doctor prescribe an US Olympic athlete one of these advanced systems for use during competition for a sports medicine pathology will they be allowed?

    Yes, they will. OR else they will have to talk to Ricky Ricardo and have some splaining to do...

    USATF RULE 143
    ATHLETIC ATTIRE
    1. In all events competitors must wear clothing that is clean, designed, and worn so as
    not to be objectionable. The clothing must be made of a material that is not
    transparent even if wet. The competitors must not wear clothing that could impede the
    view of the judges. Athletes’ vests should have the same color on the front and back.
    The size or number of logos on athletes’ attire shall be restricted only when required
    by the IAAF or USOC. This rule shall be enforced by the Clerk of the Course for
    track and road events and the Chief Judge of each field event.
    2. In hot weather, an athlete competing in a long distance road run may compete without
    a top shirt. This ruling will be made by the Referee with the approval of the Games
    Committee.
    3. (a) A competitor may compete in bare feet or with footwear on one or both feet. The
    purpose of shoes for competition is to give protection and stability to the feet and
    a firm grip of the ground. Such shoes, however, must not be constructed so as to
    give the competitor any unfair additional assistance, including the incorporation
    of any technology which will give the wearer any unfair advantage, such as a
    spring or similar device. A shoe strap over the instep is permissible.
    2015 USATF Competition Rules ● 50
    (b) The sole and the heel of the shoes shall be so constructed as to provide for the use
    of up to 11 spikes. Any number of spikes up to 11 may be used, but the number
    of spike positions shall not exceed 11.
    NOTE: For Youth Athletics Javelin exception, see Rule 302.5(f).
    (c) When a competition is conducted on a synthetic surface, that part of each spike
    which projects from the sole or heel, must not exceed 9mm, except in the High
    Jump and Javelin Throw, where it must not exceed 12mm. Competitors shall also
    comply with any instruction from organizers as to length of spikes. For nonsynthetic
    surfaces, the maximum length of spike shall be 25mm. Each spike must
    be constructed so that it will, at least for the half of its length closest to the tip, fit
    through a square sided 4mm gauge.
    (d) The sole and/or the heel may have grooves, ridges, indentations, or
    protuberances, provided these features are constructed of the same or similar
    material to the basic sole itself.
    (e) In the High Jump and Long Jump, the sole shall have a maximum thickness of
    13mm. In the High Jump, the heel shall have a maximum thickness of 19mm. In
    all other events, shoes may be of any thickness.
    (f) Athletes may not use appliances, either inside or outside the shoe, which will
    have the effect of increasing the thickness of the sole above the permitted
    maximum, or which can give the wearer any advantage which would not be
    obtained from the type of shoe described in the previous paragraphs. The
    thickness of the sole shall be measured as the distance between the inside top side
    and the outside under side, including the above-mentioned features and any kind
    or form of lose inner sole.
    NOTE: Orthotic inserts required for medical purposes are exempt from this rule.


    Reference--http://www.usatf.org/usatf/files/3a/3a9201fc-329e-4ec6-bd02-ff81ea14e71c.pdf

    Nike is sniffing around the carbon fiber edges.
    http://sneakernews.com/2015/06/29/will-an-air-jordan-11-low-carbon-fiber-release/

    Kingetics is busting the shoe out of the box. IMHO
    http://mauinow.com/2013/06/14/next-gen-combat-boot-designed-on-maui/

    A Hui Hou,
    Steve

    Co-PI SBIR A11-109 "Advanced Composite Orthotic Insoles for the Reduction of Stress Fracturs." sponsored by US Department of Defense and Army Medical Research and Materials Command.

    Member Kingetics LLC
     
  15. Dr. Steven King

    Dr. Steven King Well-Known Member

    Aloha,


    “Furthermore, this study adds further weight to suggest that the use of such technology in able-bodied sport needs to be carefully considered in the future – the prosthesis’ spring-like design could propel an athlete in a way that is not quite like the able bodied athletes.”

    Yes you should carefully consider the future, really you should.

    What will happen when folks realize that combining composite materials with simple machine mechanisms will even further enhance the basic spring mechanism currently utilized in the current orthotics and prosthetics?

    Will they try to ban them?

    Can we really prove what the human element is to compare to the manufactured element? The IOC could not and that is why these great athletes get to continue their sport.

    Here is the elephant in the room.
    If I, as a doctor prescribe an US Olympic athlete one of these advanced systems for use during competition for a sports medicine pathology will they be allowed?

    Yes, they will. OR else they will have to talk to Ricky Ricardo and have some splaining to do...

    USATF RULE 143
    ATHLETIC ATTIRE
    1. In all events competitors must wear clothing that is clean, designed, and worn so as
    not to be objectionable. The clothing must be made of a material that is not
    transparent even if wet. The competitors must not wear clothing that could impede the
    view of the judges. Athletes’ vests should have the same color on the front and back.
    The size or number of logos on athletes’ attire shall be restricted only when required
    by the IAAF or USOC. This rule shall be enforced by the Clerk of the Course for
    track and road events and the Chief Judge of each field event.
    2. In hot weather, an athlete competing in a long distance road run may compete without
    a top shirt. This ruling will be made by the Referee with the approval of the Games
    Committee.
    3. (a) A competitor may compete in bare feet or with footwear on one or both feet. The
    purpose of shoes for competition is to give protection and stability to the feet and
    a firm grip of the ground. Such shoes, however, must not be constructed so as to
    give the competitor any unfair additional assistance, including the incorporation
    of any technology which will give the wearer any unfair advantage, such as a
    spring or similar device. A shoe strap over the instep is permissible.
    2015 USATF Competition Rules ● 50
    (b) The sole and the heel of the shoes shall be so constructed as to provide for the use
    of up to 11 spikes. Any number of spikes up to 11 may be used, but the number
    of spike positions shall not exceed 11.
    NOTE: For Youth Athletics Javelin exception, see Rule 302.5(f).
    (c) When a competition is conducted on a synthetic surface, that part of each spike
    which projects from the sole or heel, must not exceed 9mm, except in the High
    Jump and Javelin Throw, where it must not exceed 12mm. Competitors shall also
    comply with any instruction from organizers as to length of spikes. For nonsynthetic
    surfaces, the maximum length of spike shall be 25mm. Each spike must
    be constructed so that it will, at least for the half of its length closest to the tip, fit
    through a square sided 4mm gauge.
    (d) The sole and/or the heel may have grooves, ridges, indentations, or
    protuberances, provided these features are constructed of the same or similar
    material to the basic sole itself.
    (e) In the High Jump and Long Jump, the sole shall have a maximum thickness of
    13mm. In the High Jump, the heel shall have a maximum thickness of 19mm. In
    all other events, shoes may be of any thickness.
    (f) Athletes may not use appliances, either inside or outside the shoe, which will
    have the effect of increasing the thickness of the sole above the permitted
    maximum, or which can give the wearer any advantage which would not be
    obtained from the type of shoe described in the previous paragraphs. The
    thickness of the sole shall be measured as the distance between the inside top side
    and the outside under side, including the above-mentioned features and any kind
    or form of lose inner sole.
    NOTE: Orthotic inserts required for medical purposes are exempt from this rule.


    Reference--http://www.usatf.org/usatf/files/3a/3a9201fc-329e-4ec6-bd02-ff81ea14e71c.pdf

    Nike is sniffing around the carbon fiber edges.
    http://sneakernews.com/2015/06/29/will-an-air-jordan-11-low-carbon-fiber-release/

    Kingetics is busting the shoe out of the box. IMHO
    http://mauinow.com/2013/06/14/next-gen-combat-boot-designed-on-maui/

    A Hui Hou,
    Steve

    Co-PI SBIR A11-109 "Advanced Composite Orthotic Insoles for the Reduction of Stress Fracturs." sponsored by US Department of Defense and Army Medical Research and Materials Command.

    Member Kingetics LLC

    Maximalistic Advanced composite simple machine runner
     
  16. Oscar Pistorius guilty of murder South African court has just found after a appeal
     
  17. Justice for this young woman's murder has finally been served.
     
  18. I hope the brothers confiscate his legs after his initiation. Will be just about the right height :drinks
     
  19. NewsBot

    NewsBot The Admin that posts the news.

    Articles:
    1
    News Release 5-Jan-2022
    World’s fastest blade runner gets no competitive advantage from prostheses, study shows

    Amputee sprinters using running prostheses, or blades, have no clear competitive advantage at the 400-meter distance compared to sprinters with biological legs and, in fact, appear to have a significant disadvantage at the start, according to University of Colorado Boulder research published today.

    The long-awaited study, published in Royal Society Open Science, provides the most comprehensive set of data ever collected from elite runners with bilateral leg amputations, including the world’s fastest 400-meter sprinter, Blake Leeper. Leeper was ruled ineligible to compete in the Tokyo Olympics last year due to having an assumed advantage.

    When comparing performance data from Leeper, South African “blade runner” Oscar Pistorius and up to six other bilateral amputee sprinters with those of the best non-amputee sprinters in the world across five performance metrics, the research found no advantage.

    “A lot of assumptions have been made about running prostheses and performance with no data to support them,” said senior author Alena Grabowski, associate professor of integrative physiology at CU Boulder. “With this study, we show that the use of running prostheses provides no competitive advantage over 400 meters compared to biological legs.”

    For the study, Leeper—who was born without legs— visited Grabowski’s Applied Biomechanics Lab for a series of tests in 2018. That summer, he had sprinted the 400-meter in 44.42 seconds, breaking the record of Pistorius, the first below-the-knee amputee to compete against able-bodied runners at the Olympic games.

    Starting with Pistorius

    After Pistorius’ history-making run in 2012, the International Association of Athletics Federations (now World Athletics) ruled that, going forward, athletes using “mechanical aids” must provide evidence that their blades do not give them a competitive edge.

    Leeper enlisted Grabowski, an expert in running prostheses biomechanics who had collected similar data on Pistorius years earlier.

    On the treadmill and track, researchers measured Leeper’s acceleration out of the starting blocks, maximum speed along straight-aways and around curves, velocity at aerobic capacity and sprint endurance (all-out effort).

    They took the top metrics from all available data from elite bilateral amputees and compared them to the top metrics from non-amputees.

    “We found that no athlete with prosthetic legs has ever performed better than elite non-amputee athletes in lab-based experiments in any measure that relates to sprinting performance,” said first author Owen Beck, a postdoctoral fellow at Emory University who flew to CU Boulder, where he got his PhD, to help conduct the study.

    Athletes using prostheses were 40% slower out of the starting blocks, had 19% slower velocity at aerobic capacity and were 1 to 3% slower around curves compared to non-amputees.

    “To our knowledge, this is the first study to really address all the parts of the race and put it all together,” said co-author Paolo Taboga, an assistant professor of kinesiology at California State University, Sacramento. “Still, we found no advantage.”

    The authors presented preliminary results to the Court of Arbitration for Sport in 2020, but the court ruled that Leeper could not participate in World Athletics-sanctioned events, including the Olympics, because his prostheses made him too tall. (In a previous study, published in the journal PLOS One, Grabowski and her colleagues found that height makes no difference when it comes to maximum sprinting speed.)

    The researchers said they hope the publication of the new study in a peer reviewed-journal will not only nudge World Athletics to take a closer look at its policies, but also help the rest of the world form an informed opinion. They encourage other researchers to publish more data.

    “I hope this will get people to really question rules being put into place that keep athletes with disabilities from competing even when they have shown with science that they can compete fairly,” said Grabowski.
     
  20. I'm not so sure this study gives proof that athletes with prostheses can't have an advantage due to their prostheses any more than studying elite athletes and non-athlete athletes and saying that the non-elite athletes were 40% slower out of the starting blocks, had 19% slower velocity at aerobic capacity and were 1 to 3% slower around curves compared to elite athletes. I'm not convinced. My opinion? Keep the modern prosthetic athletes who participate in track and field events out of the Olympics since modern prostheses can have definite advantages over normal legs, especially in regards to their reduced mass, increased "springiness" and possibility of increased height.
     
  21. efuller

    efuller MVP

    I agree with Kevin, the study just shows that the amputees' they tested were slower than non amputees. Isn't the point that they have been working on prosthetics to make them better, to enable faster running? Haven't they been comparing running times with one prosthetic versus another? If an athlete is faster with one prosthetic over another that prosthetic gives them an advantage.

    There are two different questions here. Who is the fastest, unaided, over a given distance. The other question is can they make a prosthetic that enables an amputee to run faster than an non amputee. I would watch both races.
     
  22. Here let's do a study. Runners that run faster will be allocated into group A, and all have red hair. Runners who are slower will be allocated into group B, and all have black hair. The conclusion of this research was that having black hair did not impart any advantage to running speed than having red hair.... This is about what this study showed. Comparing able-bodied running biomechanics to prosthetic-enabled running biomechanics is a very difficult thing to do and cannot be done by comparing faster able-bodied runners to slower prosthetic-enabled runners. When Pistorius was biomechanically analyzed, he used 25% less energy to run the same speed as able-bodied runners. Now that is significant!!

    https://www.worldathletics.org/news/news/oscar-pistorius-independent-scientific-stud-1
     
    Last edited: Jan 6, 2022
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