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from Section 1 - Introduction
Published online by Cambridge University Press: 01 July 2021
As you watch Michael Phelps swim the butterfly stroke, you marvel at the amazing coordination of his muscular arms, legs, and torso. These powerful motions seem to have been perfectly planned to outpace his rivals in what is the most demanding of all swimming strokes. What you may not appreciate is that the butterfly stroke was never planned. Nor, for decades following its debut, was it even an approved stroke in the Olympic Games.
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