Kipchoge: Athletes need top innovation

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If one of the functions of sporting achievements is to inspire humans to greater heights and to attain the seemingly impossible, then the use of tech in sport may call that into question.....

The Kenyan, who overcame humid conditions in Tokyo earlier this month to defend his gold medal in the marathon, was among a host of runners who ran in specially-designed Nike shoes fitted with carbon-fibre plates for more spring and quicker times, once again rekindling a debate around "technological doping".

"When somebody does a great performance now, everybody will question if it's the shoe, and that is the credibility problem,"