The aim of study was based on the above evidence it is clear the most preferred butterfly technique is to use a straightness knee butterfly kick. Although straightness knee technique results in high speeds and better body position, it also creates more lactate acid. Swimmers using this technique should be aware of the potential benefits of using a straightness knee butterfly kick, but also the potential shortcomings. Although the straightness knee butterfly kick increased the stroke velocity by one, distance per cycle and max speed it also creates too much lactate acid for the swimmer to hold the form for more than 30 seconds under current conditions. This study analyzed the butterfly kick technique of former world record holder and former Asian record holder were found butterfly performance significantly improved to an in distance per cycle and reducing resistance compared to a bending knee butterfly kick.
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