Hi Brianna,
Not exactly. Sebastian explained his ideas to efattah and I a few years ago and we tried them out in Vancouver. First, with suits on, lots of ballast, and diving on partial exhale sinking from the surface. What was neat about that was the rapid progression of chest flexibility and the absence of narcosis at depth (30-40m).
Next step was the no-suit part, which we use now at all our competitions and when the mood strikes for fun diving. Chilly, but exhilirating. We use a noodle float to be able to relax on the surface under the waist, otherwise you sink below the surface while breathing before each dive.
It's a great way to dive once you learn to deal with the cold and how much you can handle because all you need to go diving is a mask and snorkel (bathing cap helps, too) and you can pretty much dive anywhere and in any water temp - at least for 1-3 dives before getting hypothermic. Great for travel.
I have not tried out the breath hold before dynamic excercise. It seems obvious to do now that I've heard about it, since that's what is so nice about diving on an exhale in the first place. What I'm interested in is the implications for training on land since apnea walking/hiking on its own seems so effective. I would like to talk with Seb to learn more about the physiology behind his theories and practices. Hopefully, he'll stop by in Vancouver.
Hope to meet you soon at Ansell sometime!
Pete
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