Navigation Links
Physics confirms sprinters are performing better than ever before
Date:7/1/2012

In this month's Physics World, Steve Haake, director of the Centre for Sports Engineering at Sheffield Hallam University in the UK, reveals that the men's 100 m sprint will be one event not to miss this summer.

Haake has developed something called the "performance-improvement index", which uses very simple physics to compare the relative improvement of top athletes in different sports over the last 100 years.

The model shows that the performance-improvement index in the men's 100 m sprint is increasing at a time when those of other events, such as javelin and swimming, have plateaued or decreased.

Some of the reasons for these changes, which Haake describes in this feature, are because of technological interventions that have changed the face of the sport. The performance of javelin throwers, for example, was improving drastically up until the mid-1980s, to a point where officials were concerned for crowd safety.

At the time, javelins would float to the ground and land flat, meaning it was very hard to tell where the tip had hit the ground. As such, the International Association of Athletics Federations (IAAF) changed the specifications of the javelin itself, moving its centre of mass towards the tip by 4 cm and so forcing the javelin to land on its tip, thus reducing throwing distances by about 9 m.

Haake also describes the step-change in the men's 100 m in the mid-1970s with the introduction of fully automated timing.

In swimming, an unprecedented 25 and 47 world records were broken in 2008 and 2009, respectively, with tight-fitting, full-body swimsuits seen as the main reason.

The swimsuits, which have now been banned by swimming's ruling body (FINA), were relatively tight and reduced the cross-sectional area of the body by pulling it into a more cylindrical shape, thus reducing drag. They were made from polyurethane, which also affected the way the water flowed over the body.

As Haake
'/>"/>

Contact: Joe Winters
joseph.winters@iop.org
44-207-470-4815
Institute of Physics
Source:Eurekalert

Page: 1 2

Related biology news :

1. Young Scientist Award for Socio- and Econophysics 2012 for Arne Traulsen
2. T cells hunt parasites like animal predators seek prey, a Penn Vet-Penn Physics study reveals
3. The physics of going viral
4. Study confirms oil from Deepwater Horizon disaster entered food chain in the Gulf of Mexico
5. A study confirms that long commercials evoke stronger emotions
6. Cougars are re-populating their historical range, new study confirms
7. New avocado rootstocks are high-performing and disease-tolerant
8. New methods for better purification of wastewater
9. Breakthroughs in Chikungunya research from A*STAR spell new hope for better treatment and protection
10. UNH researchers find African farmers need better climate change data to improve farming practices
11. Giant squids giant eyes: The better to see hungry whales with
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/20/2015)... The announcement comes as demand ... Management (GRM), Ireland,s foremost records management ... built up an impressive track record of clients within the ... the records management sector in Dubai . ... staffbase and employ a further eight staff members at its ...
(Date:4/14/2015)... YORK , April 14, 2015  HYPR ... IDentity Online (FIDO ® ) Alliance tm , ... specifications. FIDO members commit to share technology and ... methods that are interoperable, more secure and private, ... enable biometric identity verification that protects sensitive user ...
(Date:4/13/2015)... YORK , April 13, 2015 ... by TechSci Research, "Global Biometrics Market Forecast & Opportunities, ... register a CAGR of around 14% till 2020. ... governments for large scale implementation and review of ... and launch of new products with greater efficiency, ...
Breaking Biology News(10 mins):Glenbeigh Records Management Wins Contract With Dubai Islamic Bank 2Glenbeigh Records Management Wins Contract With Dubai Islamic Bank 3HYPR Corp. Joins the FIDO Alliance 2HYPR Corp. Joins the FIDO Alliance 3Global Biometrics Market to Cross US$ 21 Billion by 2020: TechSci Research 2
... working on innovative energy supply solutions are included in ... Science Foundation program aimed at promoting environmental sustainability. ... a physics professor, were among the 101 scientists and ... for the Sustainable Chemistry, Engineering and Materials, or SusChEM, ...
... A drug currently used to treat intestinal worms ... which untreated can erode the structuresincluding bonethat hold the ... of print in Antimicrobial Agents and Chemotherapy . ... which is a polymicrobial biofilm, off of the root ...
... OLEDs are already used in the displays of smart phones ... with high contrast, but come with a serious drawback: typically, ... the device is actually converted into light. This ratio can ... platinum or iridium to the active material, but these elements ...
Cached Biology News:NSF awards to UT Arlington researchers will fuel sustainable solutions 2Drug may guard against periodontitis, and related chronic diseases 2Novel LEDs pave the way to cheaper displays 2
(Date:5/6/2015)... EDISON, N.J. , May 6, 2015 Bone ... $2M funding round with Hankey Capital, LLC ("Hankey Capital") of ... developing a proprietary protein for use in bone regenerative medicine ... Nell-1) for use with patients undergoing spinal fusion. ... "We are pleased with the completion of this round of ...
(Date:5/6/2015)... Follow us on LinkedIn ... with diameter ranging between 2 to 10 nanometers, ... materials market. The unique electroluminescent, photoluminescent, photo-physical, and ... confinement effect render the nanoparticles versatile and flexible ... technological, and commercial applications. A host of value-added ...
(Date:5/6/2015)... -- Oxis Biotech, Inc. (OXIS), a wholly owned subsidiary of ... Cassian Yee , M.D., Professor, Department of Melanoma ... of Texas MD Anderson Cancer Center joined its scientific ... Immunology, Division of Cancer Medicine, and Director, Solid Tumor ... University of Texas MD Anderson Cancer Center.  ...
(Date:5/6/2015)... Dr Jaspreet Singh , Senior Research ... a speech at the 2015 Asian Starch Conference, to be ... Center.  , ... topic: ,Potato Starch: A Potential Source for the Creation ... Co-editor of a 528 page text book entitled "Advances ...
Breaking Biology Technology:Bone Biologics Corp Completes Financing With Hankey Capital, LLC 2Bone Biologics Corp Completes Financing With Hankey Capital, LLC 3Expanding Applications & Full-Scale Commercialization to Drive the Global Quantum Dots Market, According to a New Report by Global Industry Analysts, Inc. 2Expanding Applications & Full-Scale Commercialization to Drive the Global Quantum Dots Market, According to a New Report by Global Industry Analysts, Inc. 3Oxis Biotech Appoints Cassian Yee, M.D. To Its Scientific Advisory Board 2Oxis Biotech Appoints Cassian Yee, M.D. To Its Scientific Advisory Board 3Potato Starch: A Potential Source for the Creation of Next Generation Bulk-ingredients and Smart Foods 2
... Pharmaceuticals wins the EFQM Excellence Awards 2011, the first ... by EFQM, the award recognizes business performance measured against ... Model. Another 9 organisations received Prizes for role model ... Excellence. 118 independent assessors visited 20 organisations ...
... and IPSWICH, Mass., Oct. 25, 2011 SwitchGear ... services for studying regulatory elements in the human genome, ... Inc. (NEB) to create a new dual reporter assay ... Luciferase Assay System and NEB,s BioLux® Cypridina ...
... Oramed Pharmaceuticals Inc. (OTCBB: ORMP.OB) ( http://www.oramed.com ... today that its work entitled "Evaluation of the Safety ... Volunteers" will be presented at the Eleventh Annual Meeting ... San Francisco, California. "The selection of Oramed ...
Cached Biology Technology:1 Award Winner and 9 Prize Winners in the EFQM Business Excellence Awards 2SwitchGear Genomics and New England Biolabs Develop New Multiplex Reporter Assay System 2Oramed Pharmaceuticals Chosen to Present at the Diabetes Technology Meeting (October 27-29, 2011; San Francisco, CA) 2
Goat polyclonal to Centaurin alpha 2**...
... background ,This solution greatly enhances antigen-antibody reactions, ... obtained with conventional methods. ,Two kinds of ... antibodies, which can suppress the background and ... versatility ,It is applicable to various assay ...
Monocarboxylate (lactate) transporter 2...
Mouse anti human pro-Relaxin-2...
Biology Products: