Mailing List Archive Mailing List Archive
Dear George: What is your experience concerning food intake (such as beans, seeds and raw cereals) which will give the diver a low, relatively constant glucose input into blood during many hours ? Also, I would like too know whether you feel any need to sleep while underwater after a long 12-15 hours dive: do you "fall" into a pseudo-sleep (kind of hypnotic) state while doing decompression during so many hours ? It would be interesting to gather information on whether we humans, under such extreme conditions, can (unconscientiously) switch from sleeping with both brain hemispheres at the same time (as on land) to a kind of at least a pseudo-sleep state first with one brain hemisphere and after with the other. In this way, the diver (as dolphins, for instance) could get sleep while carrying out other functions (watch around, deco, change bottles, keep reg in mouth, etc.). If anyone can know this, it is the WKPP and similar divers. Cheers, ---- aldo.solari@ho*.se* (fisheries biologist) Home page, www.ccbb.ulpgc.es/fish-ecology/solaris ---- trey@ne*.co* T> JJ and I eat right before the dive. We have camelbacks of T> Gatorade on our 240 deco bottles, so we get to that after the T> bottom time. Then when we get to 50 feet, we can take those T> food tubes into a trough and eat there. We can also eat bars T> underwater, but it takes a little practice and you can't be T> real picky about it. Lately , Casey has put a trough in at 130 T> feet as well, so we could eat there. That one is more for T> dealing with problems. T> The risk of not eating is big. Your blood sugar drops and T> besides all the problems that causes in or out of the water, T> it also increases the risk of oxtox. Additionally, if you take T> in sugar, as we do with the Gatorade, you will spike the blood T> sugar and then get a larger drop off as the insulin deals with T> it and that produces a state of hypoglycemia which again can T> increase the risk of oxtox. T> The answer is twofold: 1) eat before and as soon as possible - T> don't go too long without eating, and 2) once you start sugar, T> you must keep doing it every 40 minutes or so to prevent that T> reaction. Also keep in mind that the later into the dive you T> are, the greater these risks become, especially on gas T> switches. T> In one has a tendency for hypoglycemia, then be even more T> diligent about this process. I personally do things that hold T> my blood sugar level higher for hours and hours, but that is T> not for everyone and not in the realm of discussion here. T> As they pointed out in the TV show, we can be in the water for T> as long as 20 hours, JJ and I usually get it done in 15 or 16, T> but there have been some 24 hours dives. An additional problem T> is timing the dives so that you are not up all night. We like T> to start at 6:00 am when possible. This gets us out in time to T> make it to Lucy Ho's ( not JJ, me and Pina ). -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
Navigate by Author:
[Previous]
[Next]
[Author Search Index]
Navigate by Subject:
[Previous]
[Next]
[Subject Search Index]
[Send Reply] [Send Message with New Topic]
[Search Selection] [Mailing List Home] [Home]