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2016 WOWSA AWARD WINNERS
2016 WOWSA Man of the Year – Nejib Belhedi
2016 WOWSA Woman of the Year – Jaimie Monahan
2016 WOWSA Performance of the Year – Sarah Thomas’ Lake Powell Swim
2016 WOWSA Offering of the Year – Samsung Bosphorus Cross Continental Swim
Saturday, December 17, 2016
Side-dolphining In Open Water, Side-streaming In The Pool
Whether it is catching or riding a wave into the shore on a coastal ocean swim or off the wall in a pool in a competitive pool meet, streamlining on your side is a topic for consideration.
"Side-streaming or side-dolphining is something that we advocate," says Steven Munatones. "There are specific advantages.
It seems to give highly competitive swimmers a boost over their competitors, both in the open water into an onshore finish and in the pool off the walls."
Ky Hurst of Australia, one of the world's greatest watermen, is an example of a top open water swimmer who advocates this side-dolphining style.
"Dolphining on one's side does seem slightly faster than traditional dolphining on one's stomach, but it has to be practiced before implementing in a competition.
Competitive pool swimmers and their coaches know that, for most swimmers, kicking underwater on their back is faster than kicking underwater on their stomachs. And that kicking on their sides is even faster than both."
There are various reasons why kicking on one's back underwater or sides is faster than kicking on the stomach.
"The first reason is that water is non-compressible.
That is, your stronger muscles (i.e., your quadriceps) are pushing upwards when you are on your back - and your weaker muscles (i.e., your hamstrings) are pushing downwards when you are on your stomach. It is natural and assumed that your stronger muscles push more water (i.e., quadriceps versus hamstrings), but because water is non-compressible, the actual displacement of water is less where there is more water (i.e., kicking on your stomach where there is more water below you than above you) - and more displacement of water where there is less water (i.e., kicking on your back where there is less more above you than below you).
In other words, on your upkick when you are on your back and there is less water above you, more water is displaced compared to your downkick when you are on your stomach and there is more water below you - and therefore, there is less water displacement. The more water you displaces per square inch of area, generally the faster your propulsion all things being equal.
The second reason is a bit more subtle, but gravity has another effect that causes underwater kicking on your back to be faster than on your stomach. That is, your stronger muscles (i.e., your quadriceps) are pushing against gravity when you are on your back - and your weaker muscles (i.e., your hamstrings) are pushing with gravity when you are on your back.
The reverse is also true. That is, your stronger muscles (i.e., your quadriceps) are pushing with gravity when you are on your stomach and your weaker muscles (i.e., your hamstrings) are pushing against gravity when you are on your stomach. This leads to a slight difference in the amount of water that is displaced - and therefore, your speed is faster on your back.
Take those two principles (i.e., the non-compressibility of water and the effects of gravity) and their effects (i.e., a lesser or greater displacement of water) and then consider kicking on your side (i.e., fishlike kicking) in a pool. In a pool, there is more displacement on your side, due to the amount of water between yourself and the sides of the pool and due to a lesser effect of gravity...essentially, kicking on your side is most certainly faster than kicking on your stomach and faster than kicking on your back.
It also may be that the proper alignment of your head position and streamlined position of your outstretched arms are more easily accomplished on your back or on your side."
Photo above shows Ky Hurst, courtesy of his website.
Copyright © 2016 by World Open Water Swimming Association
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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.
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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.