Figuratively, the answer is most definitely a yes.

But what about literally? Physiologically, do open water swimmers and marathon swimmers in particular have physiologic eccentric hypertrophy as has been well-documented in endurance athletes?

There has been no specific research on this topic as has been documented by cyclists, rowers and cross country skiers with the athlete heart syndrome.

A group of researchers including Tim Noakes of the University of Cape Town, Robert Shave of Brunel University, Darren Warburton, Jessica Scott and Ben Esch of the University of British Columbia, David Oxborough of the University of Leeds,, and Keith George of Liverpool John Moores tested 79 male and 26 female ultra-marathon runners (ranging from 24-76 years) who were recruited from the 160 km Western States Endurance Run in the U.S. or the 89 km Comrades Ultra-Marathon in South Africa. They found that 26% of ultra-marathon runners have evidence of eccentric hypertrophy. This percentage and magnitude of the hypertrophy are not as great previously believed.

This kind of research on open water swimmers of various ages would be fascinating to learn. But from our non-scientific perspective and observations of marathon swimmers around the world, we know that it is truly difficult to measure the heart of endurance athletes…especially those who swim in the open water.

Underwater photo of a channel swimmer in Hawaii is courtesy of Matt Bittick.
 

Copyright © 2012 by Open Water Source


 

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Tackling The Ocean
Retired NFL Defensive End and Pro Bowl superstar, Marcellus Wiley, conquers his fears of swimming in open water at the OptimusSport Distance Swim Challenge, Santa Monica, CA

 


 


 


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An Inspirational Cause… A Successful Event



SWIM ACROSS AMERICA, LONG BEACH
With the powerful cause of making waves to fight cancer, the inaugural Swim Across America Long Beach event was both inspirational and successful.

THE DRAMA OF THE SPORT
Before he came out of the water, Craig knew that a certain question had to be answered. It wasn’t a question about his middle name or anything like that. It was much more profound. It was a question posed by himself, a question that only he could answer for himself. When Craig was able to answer that question, Hank embraced him and congratulated him on finishing the 5K with dignity.


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