The underwater dolphin kick
Inside the beyond a long time, the maximum drastic trade in swimming has been the addition of the underwater dolphin kick. that is used to maximise the rate at the begin and after the turns in all patterns. the primary a hit use of it changed into through David Berkoff. at the 1988 Olympics, he swam maximum of the 100 m backstroke race underwater and broke the world document on the gap throughout the preliminaries. some other swimmer to apply the method became Denis Pankratov on the 1996 Olympics in Atlanta, in which he completed almost half of of the a hundred m butterfly underwater to win the gold medal. in the past decade, American competitive swimmers have proven the maximum use of the underwater dolphin kick to advantage gain, maximum substantially Olympic and global medal winners Michael Phelps and Ryan Lochte; however those swimmers aren't capable of cross any further than fifteen metres underwater because of rule modifications via FINA.