How does in-toeing aid propulsion?
How does in-toeing aid propulsion during backstroke leg kick?
Good swimming is all about efficiency through the water and good efficiency is achieved with a streamlined body position.
In-toeing aids propulsion by reducing drag and resistance and assists to promote a streamlined body position.
When an object or body moves through the water, whether it is pushed, pulled or driven, it leaves behind swirls of water called Eddy Currents. These eddy currents attempt to pull back the moving object therefore causing drag.
Eddy currents are always present no matter how efficient the moving object is through the water but the narrower and more streamlined the object, the less effect eddy currents have.
An in-toeing backstroke kick will therefore be more streamlined and generate less drag.
With regards to propulsion, in-toeing may not increase propulsion but will assist it by decreasing drag.
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