World Athletics is set to announce the findings of a review of technology in roa...
LONDON - World Athletics is set to announce the findings of a review of technology in road and track shoes by the end of January, and it is expected to change its rules in light of tumbling times recorded by athletes using Nike’s Vaporfly brand.
* The Kenyan also wore a version of the shoes when he set the official world record of 2:01.39. Kipchoge’s 78-second improvement on the existing record was the largest improvement in over 50 years. * Last December Uganda’s Joshua Cheptegei broke the 10-year-old 10km road world record in Valencia by six seconds. The top five at the event all wore a version of Nike’s Zoom Vaporfly 4%.* That record lasted only six weeks as 20-year-old Kenyan Rhonex Kipruto took a further 14 seconds off it. He was not wearing Nike shoes but a prototype carbon-insoled Adidas shoe.
* The ‘4%’ in the name comes from Nike’s finding that the shoe could make its wearers that much more efficient, meaning they need that much less effort to produce the same pace.
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