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World Athletics president Sebastian Coe says the organisation will not "strangle innovation", following the debate around the so-called 'super shoe' which helped Sabastian Sawe become the first person to run a competitive marathon in under two hours.
The 31-year-old Kenyan won Sunday's London Marathon in one hour 59 minutes 30 seconds, writing himself into history and breaking a barrier once thought by many to be impossible.
"I don't think any society, any civilisation, any sector of the economy has been served well if you try to strangle innovation," Coe told BBC Sport Africa on a visit to Botswana before the World Relays.
"The role of World Athletics is very clear - we want to enable, but we also have a regulatory responsibility."
Sawe, Ethiopia's Yomif Kejelcha - who also ran under two hours as he finished 10 seconds behind Sawe - and Tigst Assefa, who set a new world record time as the winner of the women's race, all wore the Adidas Adios Pro 3 shoes in London.
Sawe thanked Adidas for making what he said were the best shoes he had worn, particularly highlighting how "very light" and stable they are.
The first super shoe to weigh under 100 grams, Adidas claim their technology improves running economy by 1.6%.
But any runner wanting to benefit will have to pay about $500 (£450) to road test the product themselves.
"Yes, shoes play a part, but not the biggest part," Coe said.
"The biggest part is the mentality of the athlete, the physicality of the athlete, the world-class coaching, the world-class programmes that are now being run through federations to support their athletes. That's all a part of the improved performances."
Sawe shaved more than two minutes off his personal best in London, attributing his improvement to running about 200km a week at altitude.
His progress was also aided by developments in fuelling. The Kenyan reportedly took on 115g of carbohydrates per hour during the race, following a breakfast consisting only of two slices of bread with honey and tea.
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