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What's behind the spate of super-fast sprints at the Tokyo Olympics? Technology plays a role, but the real answer is training

By Phil Bellinger, Lecturer in exercise science, Griffith University
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The Tokyo Olympic Games have seen incredible performances in the short-distance track events. We have seen two major world records fall: the men’s and women’s 400-metre hurdles - and numerous personal best times.

In the women’s 400-metre hurdles, five of the eight competitors in the final ran personal bests. Jamaica’s Elaine Thompson-Herah set an Olympic record to win the women’s 100-metre event. A European record was set in the men’s 100-metre event, and all medallists in the race were slightly faster than the respective medal-winning times at the 2016 Rio Olympics.

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