Long-term changes in the speed curve of a world-class butterfly swimmer

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From 2011 to 2018, we monitored a butterfly swimmer who progressed to the top 15 in the world rankings for the 50 and 100-meter butterfly events. After analyzing various points on the speed curve, we found that the 5% increase in average speed was due to reductions in speed variation, an increase in stroke frequency, and an improvement in the upward phase of the kick during the arm recovery. READ!

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