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Scientist questions Eliud Kipchoge's idea

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Sports Scientist questions Eliud Kipchoge's idea He wants to break the 2-hour marathon barrier


Daniel Gallan, for CNN

Posted: Aug 29, 2019 05:23 AM CDT

Updated: Aug 29, 2019 05:23 AM CDT

Eliud Kipchoge of Kenya celebrates at the victory ceremony winning the BMW Berlin Marathon 2017 on September 24, 2017 in Berlin, Germany.

Scientist questions Eliud Kipchoge's idea

Alexander Hassenstein/2017 Getty Images For BMW

Eliud Kipchoge of Kenya celebrates at the victory ceremony winning the BMW Berlin Marathon 2017 on September 24, 2017 in Berlin, Germany.

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(CNN) - Eliud Kipchoge has likened his upcoming attempt to break the two-hour marathon barrier to Neil Armstrong's historic moon landing in 1969, but one leading sports scientist says the conditions are "contrived" and likens it more to breaking the high jump record on Mars.

The 34-year-old Kipchoge, who ran the fastest ever official marathon last year in Berlin in a time of 2:01:39, will try to dip under two hours in Vienna in October, aided by a group of pacesetters and running behind a lead car that will serve as a wind resistor.

However, Professor Ross Tucker, the respected South African who served as an expert witness in Caster Semenya's hearing at the Court of Arbitration of Sports (CAS) earlier this year, is skeptical about the variables involved in the venture, dubbed the INEOS 1:59 Challenge.

"Getting man to the moon involved overcoming gravity. What Kipchoge is doing is taking gravity out of the equation," Tucker told CNN Sport. "It would be the same as breaking the high jump record [set in 1993 by Cuba's Javier Sotomayor at a height of 2.45m] on Mars where there is less gravity."

READ: Caster Semenya blocked from competing at World Championships

Removing gravity

The rationale behind Tucker's claim helps explain why the International Association of Athletics Federations (IAAF), the governing body for the sport of athletics, will not recognise Kipchoge's time as part of its official record.

"People within the sport who understand the constraints of what normally regulates or limits performance would appreciate that this isn't comparable [with the moon landing]," Tucker said. "The variables are too contrived for this to be regarded as a pure human accomplishment."

However, INEOS spokesperson Tom Crotty said in a statement: "The sub-two-hour marathon remains one of the last barriers in sport," and Kipchoge's achievement would represent a "next step to make history, leave a legacy, and show that no human is limited."

Kipchoge, who missed breaking the two-hour mark by just 25 seconds in Monza in 2017, added: "It is not about a world record. It is about passing the message of inspiration to the whole human family. I am already the record holder for marathon but I need to do this for the human family."

READ: Kenyan runner comes close, but two-hour marathon barrier remains unbroken

A technological boost

Tucker is concerned that modern high-performance running shoes are so efficient they take away from the human achievement.

Last year, The New York Times released a comprehensive report detailing the significant improvements Nike's Zoom Vaporfly 4% shoes -- worn by Kipchoge and on public sale at $250 -- afford men and women of all levels and ages. This primarily comes in the form of the assisted spring the shoes provide, propelling the runner forward while preserving energy.

According to Tucker, a runner expelling four percent less oxygen for the same energy output is able to improve on his or her performance by 2.5 percent at the elite level. Over the course of a marathon - 26.2 miles (42.2km) - this could translate to as much as two minutes.

While the Nike shoe is perfectly legal, it throws up a similar situation to the swimsuit that took the 2008 Olympics by storm.

In Beijing, 94 percent of all swimming races were won by athletes wearing Speedo's LZR Racer swimsuits, according to Time Magazine. Michael Phelps said he "felt like a rocket" in the swimsuit before claiming an unprecedented eight gold medals in Beijing.

At the European Short Course Championships in Croatia later that year, 17 records fell to swimmers wearing the LZR which prompted the International Swimming Federation (FINA) to change its rules regarding the length and material of sanctioned swimsuits.

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