Aug. 3, 2021, 11:01 a.m.

(France 24) Norwegian Karsten Warholm's spectacular run to shatter his own 400-metre hurdles world record at the Olympics on Tuesday – winning gold in just 45.94 seconds – was the latest instance of “super shoes” speeding athletes forward. Experts say this innovation will continue to radically change the landscape of track and road running.

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