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diaphragmatic contractions
- Thread starterblueface
- Start date
Thread Status: Hello
, There was no answer in this thread for more than 60 days.
It can take a long time to get an up-to-date response or contact with relevant users.
It can take a long time to get an up-to-date response or contact with relevant users.
I'm not sure I understand the question, however, if you mean swallowing air into the stomach, I would say it's wrong.
It does not happen to me when training with mask or nose clip, but during competitions (when I do not use any mask or nose clip), I usually swallow quite a bit of air. Not ideal, but not too bad - I simply changed my Surface Protocol to the sign OK (no removal of facial equipment since I don't use any), verbal "I am OK", and a huge buuuurp.
Yes, indeed. The only problem I have with this protocol, is avoiding the burp between the visual sign and the verbal OK - not sure whether the judges would accept that. Though, I think that once I already did "I ... burp ... am ... burp ... OK .... buuuuuurp" and I was not disqualified. But I am sure if I had Linda as judge, I might get some troubles with it.
Esophageal speech (or voice) is an alternate method for speech production without the oscillation in the vocal folds. The sound is produced by releasing gases from or through the esophagus. In esophageal speech it is thus the esophagus that oscillates in contrast to normal (laryngeal) speech where the vocal folds oscillate. Esophageal speech is thus speaking by eructation (belching).
[edit] Clinical
Esophageal speech is a skill that can help patients to communicate after a laryngectomy. This is the most common surgery used for the treatment of laryngeal cancer. In the operation, the larynx (and with it the vocal cords, etc.) is removed completely. After this, the end of the trachea is sewn onto the edge of an opening cut out at the lower part of the neck, creating a breathing hole similar to that used by a whale." (wikipedia: esophageal speech)
[edit] Clinical
Esophageal speech is a skill that can help patients to communicate after a laryngectomy. This is the most common surgery used for the treatment of laryngeal cancer. In the operation, the larynx (and with it the vocal cords, etc.) is removed completely. After this, the end of the trachea is sewn onto the edge of an opening cut out at the lower part of the neck, creating a breathing hole similar to that used by a whale." (wikipedia: esophageal speech)
Yup that's what happens to me I burp a lot after a breath hold...thanks trux... so i guess I just have to watch and minimize swallowing air...Also, may I ask if it happens to you when you dive? If so, will it make trouble because of reduce air in the lungs, in turn, the body will get air from the blood?
wet: that is so techinical. Is that something I should be seriously concerned off...
As I wrote, at normal training or recreational diving, or at statics it does not happen to me since I use either mask or a nose-clip, so I can easily suck back the air that escapes through the epiglottis due to the contractions. With exposed nose, and often water in sinus it is not possible, and the swallowing reflex comes automatically. At the ocassional max dive it is not too bad, but it is certain that you better try avoding it at normal diving.
Wait, I thought contractions happen because the CO2 'sensor' kicks in? Isn't that why hyperventilation delays contractions?
Anyway, I'm interested in this also because I recently reached 3 minutes static (my "normal" max is 2:30), and pretty sure still have quite a bit O2 but it's just hard to keep the air without spurting it out of my mouth. It's very hard to remain calm by then.
Does packing help? (I've never tried it)
Anyway, I'm interested in this also because I recently reached 3 minutes static (my "normal" max is 2:30), and pretty sure still have quite a bit O2 but it's just hard to keep the air without spurting it out of my mouth. It's very hard to remain calm by then.
Does packing help? (I've never tried it)
The receptors will sense the rising level of Co2 and the contractions will occur. We should welcome the contractions. They are difficult to deal with and sometimes very painful. Hyperventilating will delay the contractions but you may blackout sooner. If you have the right amount of Co2 you will be less comfortable but less likely to BO. That is why, for me, it is better to breath normally (tidal breathing).
I was wondering how some of the more experienced guys deal with contractions. Some of them can tolerate hundreds. Some tolerate contractions for most of their performance. Mine start at about 2:45 to 3:00 on a static (No hyperventilating) and I endure them up to 4:00 min. Some divers have contractions earlier and can beat my time! I have endured 50 or so and with practice I will be able to go much longer. I wanted to know how the experts dealt with them. That was my original question.
Packing does not improve my performance because of a lack of practice. My heart rate gets high and I feel squeezing and discomfort so I don't benefit from the extra air. I am working on packing a little at a time and hopefully I will improve.
There is a grand canyon of information on this site about hyperventilating, CO2, blackout, and the Bohr effect. Here is some good reading:
http://forums.deeperblue.com/freediving-science/78976-some-iscience-swb.html
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