Navy SEAL Workout

I'm looking at this wondering why Navy Seals aren't at triathlons recruiting.  There are some people on this site (not me!) who would consider this tapering!

(please don't rush me to tell me how tough Seal training is.  I'm talking about the run/swim workouts, that's all.)

Basically drown proofing is where they hold you under until you are on the edge of blacking out and then pull you out of the pool. I wanted no part of that.

HIJACK: In a partial answer to your question, lung capacity can be increased through any number of breathing excersizes. As a tuba player (laugh if you want too...), being able to put a large volume of air through your horn would allow you to have much better phrasing and therefore musicality. I worked on breathing excersizes through high school and into college. Through learning the mechanics of how your body moves when you breathe deeply, I was able to maximize my lung capacity.

Then I started smoking.

Then I quit smoking and started training for tris and found my lungs again. Woo-hoo!

HIJACK OVER.

Looks like a good workout.  It'd be fun to try it.

Unless things have changed in the last 10 years, this is not drown-proofing.   Drown-proofing is a method of floating and breathing to sustain you in the open water while expending the minimal amount of energy and conserving as much body heat as possible.  In theory you could last for days without tiring, essentially making yourself "drown-proof".