The Ethiopian smashed the women’s record in Berlin, reviving the debate about the role of hi-tech shoes in athletic performance
hey say shoes maketh the man. But did a pair of trainers make Ethiopia’s Tigist Assefa a record-breaking runner? Her shattering of the women’s marathon world record by more than two minutes – while wearing a pair of Adidas’s new Adizero Adios Pro Evo 1s – has reignited the debate about the role of “super shoes” in athletic performance.
later backed up Nike’s assertion that the shoes could increase an athlete’s running efficiency by approximately 4% compared with conventional marathon shoes. However, in April, the top four places in the men’s Boston marathon race went to athletes wearing Adidas Adizero Adios Pro 3s, and Kenya’s Hellen Obiri won the women’s event wearing a prototype from the Swiss brand On.
Without sawing apart one of these trainers – which has been impossible until now, as they do not go on sale until Tuesday – experts say it is difficult to know whether the technology they contain is truly groundbreaking, or an incremental improvement on what has gone before. The Adizero Adios Pro Evo 1 shoe is ‘lab-tested to trigger forward momentum and improve running economy’.Differences in athletes’ body masses, running speeds and foot-strike patterns also influence how much difference individual shoes make. While Nike’s Vaporfly shoes lowered the energetic cost of running by 4% on average, there was considerable variation between individuals.
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