Let me share with you an article that I wrote a couple of years ago that is related with USRPT. The following is an excerpt of the article:
Hydrodynamics – Square of the velocity
Let´s go back to the aforementioned swimming classic The Science of
Swimming by James Counsilman. At the beginning of the book he briefly
explains that the drag a body creates as it moves through a fluid increases
approximately with the square of its velocity. i.e. swimming 2 % faster creates 4
% more drag.
Many books and articles that discuss the hydrodynamic aspect of competitive
swimming mention this principle, but they put the emphasis in other analysis,
like the angle of attack, lift forces etc. Of course that kind of researches are
important, but, as there is less coverage of the Square of Velocity principle,
perhaps the swimming community underestimates its crucial importance.
The basis of the Kinetic Density method is this, sometimes forgotten,
hydrodynamic law. A deep comprehension of it would facilitate its practical
Swimming Coach at Circulo Italiano, Villa Regina, Rio Negro, Argentina
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