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Chris, >Dan - What is a freediver doing when s/he " will do 8 hours of continuous >freediving"? Is that for training, or do people spear fish for long >sessions like that, or what? Man, I'd hafta stop in there somewhere for a >couple cheeseburgers! What a workout! Any idea what the calorie burning >rate would be for a session like that? Should be incredible! A lot of these competitive freedivers will spend 8 hours in a day trying to get that perfect fish.You have to train to get this kind of endurance, and I think bringing some Powerbars or other types of energy foods , and electrolyte drinks would be a no-brainer. Calories would be similar to a 16 mph bike ride 8 hours long (lower heart rate, but core temperature maintanence would push calorie burn back up). You could definitely burn some fat! > >Did you see the mini-report on elephant seals on CNN last night? I've read >about them in several places: they slow heartbeat to -- no shit -- 3 times >a minute. They stay down 2 hrs. at a time, and surface to oxygenate for >about 2 or 3 mins., then back down, never returning to land until breeding >time rolls around again. Scientists glue electronic recorders to them and >collect the data.apparently they are almost sleeping while they'e cruising >around underwater feeding. They hang out and breed on the calif. coast, so >people thought that's where they live. Turns out that, when living daily >life, the females will swim almost to Japan, and the males go up to the >Bering sea! They're habitat turns out to be the entire Pacific! Flat >fucking amazing. > >Seem to be the best goddam fee divers there are -- but do you think any >dive manufacturer will ever name their product "The Elephant Seal >Whatever"? Not likely! ;-) > >BTW, when I watch free divers, it seems that the best ones have a technique >that I can only describe as "non-resistence to the water." It's as if their >movements are eel-like, rather than paddling, stroking, and fighting the >water, which is what you see mast divers trying to do. Have you thought >about/developed your own technique that way? It would be interesting , if >you haven't already done it, to analyze what you do to create a path of >"least resistance" and describe to list readers. Starting with presenting >as clean as poss. a profile to the water, of course. So far I just try to use big slow kicks, and "sleep my way down". Terry Maas will be out here in about a month and a half, and I hope to learn alot from him in the freedive seminar he will be putting on. Your right about the efficiency of body position though---there is nothing like freediving to exagerate the need for perfect body positions. I will be doing a big story on this in SFDJ, with plenty of photos to show what we are talking about. Dan > > >Christopher A. Brown >The Technical Diving Video Library (TDVL) >TDVL Web Site: http://www.neuro.fsu.edu/dave/docent.htm > >Sci-Graphica PR and DOCENT FILMS > >Personal calls: 904-942-7222 >Vid info & ordering (N.Am.): 1-800-373-7222 >Outside US:904-942-7222 >Fax:904-942-1240 > >Life is short -- this is not a rehearsal. > > > > Dan Volker SOUTH FLORIDA DIVE JOURNAL "The Internet magazine for Underwater Photography and mpeg Video" http://www.florida.net/scuba/dive 407-683-3592
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