Scientists explain why the flutter kick propels swimmers forward

gizmodo.jp (Japanese)

Scientists have scientifically explained why the flutter kick in swimming propels swimmers forward. The research revealed that the flutter kick generates three-dimensional vortices, similar to the dolphin kick, creating forward propulsion. It also generates downward water flow that helps stabilize the body and prevent sinking. This study, combining motion capture and particle image velocimetry, clarifies the precise mechanics of the flutter kick, potentially improving swimming techniques and instruction.


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Scientists explain why the flutter kick propels swimmers forward | News Minimalist