Swimming cardio filter: for front crawl where I gasp a breath every 3 strokes, does it make much difference for cardio that I am holding my breath vs being able to breathe freely as I would be able to with a special swimmer's snorkel (the snorkel goes up the middle of your forehead rather than being attached at the side). Anyone got any science on this?
posted by dino terror on Jun 3, 2009 - 8 answers

Help, I can't swim the front crawl stroke without becoming completely exhausted in less then 20 seconds. [more inside]
posted by ShootTheMoon on Aug 31, 2007 - 33 answers