ronbeau
Contributor
NC State University: PE 226
Take a look at the underwater swim video.
The breath-hold swim was my terror for getting through Fundies. I practiced and practiced, and by the time class came, it was still 50-50 whether I could get to the end or not. I did pass, out of sheer determination, but it was dicey.
Since then, I was introduced to these videos, and I went to the pool and worked on some of the ideas. One tip -- Don't keep your head up and try to see where you are going. It increases your drag significantly. Second, don't try to swim the whole way -- See how much time you can glide. Effort takes oxygen and creates CO2, which makes you want to breathe. The less you can DO to get across the pool, the more comfortable you will be doing it.
I can do 60 routinely now. 75 is still a hit or miss proposition.
It looks like NC State is having problems with the links off of the link you supplied. In other words, the link you supplied works fine but the buttons for Underwater Swim and some other links on that page are broken.