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Monday, November 25, 2013
Measuring And Maximizing Dolphining In The Open Water
The SwiMetrics tested Coach Rodrigues on his open water dolphining technique. Similar to the SwiMetrics velocity, force and acceleration measurements and tests that were utilized to analyze Michael Phelps' turns in the pool, SwiMetrics was used to analyze Coach Rodrigues' open water dolphining technique in a pool.
Imagine that the pool shown in the video is the ocean floor or lake bottom in an open water race or triathlon with an on-shore start and finish. You can see Coach Rodrigues pushing off at a 45° angle and, very importantly, he also pushes off the bottom with both hands. With his legs, Coach Rodrigues peaks at about 2.3 meters per second in an measurement of his instantaneous velocity. But, he also generates about 1.9 meters per second speed when he pushes off with his hands. You can also see that he remains streamlined throughout the pushoff and entry back into the water in his dolphining technique.
The white line represents the instantaneous velocity measured 60 times per second using the SwiMetrics technology developed by Genadijus Sokolovas Ph.D. The intersection of the green line and the white line indicates the velocity (speed in meters per second) reached by Coach Rodrigues at that specific moment.
Please keep in mind that the dolphining technique is appropriate for flat and calm conditions and must be modified when the ocean surf is large.
Copyright © 2013 by World Open Water Swimming Association
Open Water Swimming Magazine
Open Water Swimming MagazineThe Open Water Swimming Magazine is the monthly magazine entirely focused on open water swimming heroes and heroines of every age, ability, and background. Published by the World Open Water Swimming Association, the Open Water Swimming Magazine is a free benefit to WOWSA members.
WOWSA Member Benefits include 12 issues of the Open Water Swimming Magazine, the annual 276-page Open Water Swimming Almanac, a free listing in Sponsor My Swim, outstanding product discounts from FINIS, an entry in Openwaterpedia and more...
The Other Shore
The Other Shore follows world record holder and legendary swimmer Diana Nyad as she comes out of a thirty-year retirement to re-attempt an elusive dream: swimming 103 miles non-stop from Cuba to Florida without the use of a shark cage. Her past and present collide in her obsession with a feat that nobody has ever accomplished. At the edge of The Devil’s Triangle, tropical storms, sharks, venomous jellyfish, and one of the strongest ocean currents in the world, all prove to be life-threatening realities. Timothy Wheeler’s documentary brings Diana Nyad’s extraordinary adventure to life as Diana sets out to prove that will and determination are all you need to make the unimaginable possible.
2014 Open Water Swimming Almanac
An Almanac for Open Water SwimmingAn almanac is essentially a body of knowledge which is so complete that it enables people in different fields to make predictions about the future of their respective industries.
This, for example, was the purpose of the traditional farmers almanacs. It enabled farmers to determine as accurately as possible which crops to plant for the greatest harvests in a given year.
But the farmers almanac was just one example among many.
There are, of course, many different kinds of almanacs.
In fact, there is even one for open water swimming...
Preview the Open Water Swimming Almanac:
The trends are very clear.
The tide is rising for open water swimming.