The previous record of 55.61 seconds was set by South African swimmer Cameron van der Burgh in Berlin 11 years ago.

"It's my first short course world record, which I struggle with, but no-one works harder on the last length and that one was for my family," Peaty told the BBC.

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The Olympic breaststroke champion also holds world records for the long course 100m breaststroke and the 50m breaststroke. (Reporting by Simon Jennings in Bengaluru; Editing by Hugh Lawson)

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