Nike Inc shut down its Nike Oregon Project training group on Thursday, following the recent four-year ban of founder and coach Alberto Salazar by the US Anti-Doping Agency.
Scientific studies as well as anecdotal evidence suggest that Nike's Vaporfly running shoes, equipped with super-springy foam soles encasing a carbon-fibre plate, can increase running efficiency by between 4% and 6%. The shoe has also raised question at World Athletics, the sport's governing body, which looks set to review its rules for elite racing in light of technological advances while allowing recreational runners to wear what they want.
Adidas can declare itself the winner over arch rival Nike in the upcoming soccer World Cup even before the first match kicks off as it is kitting out the most teams.
'At the end of the day, athletes are humans just like the rest of us.'
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