Stress Test. Elvi Joensen DM-262048
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Uploaded by elvijoensen on Nov 15, 2009
As a part of Dive Master, you have to be able to do the Stress Test. This time it's easy in a swimmingpool.
Uploader Comments (elvijoensen)
All Comments (13)
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@elvijoensen I have, 4th time was Monday as a part of my DM training, i don't find it stressful because i know my gear in and out and i know my buddy and his gear, i was surprised that this is considered a stress test.
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you really need to practice that again.. XD
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@elvijoensen: Thank you for the reply. Now it is clear to me. I have always thought of that idea too. Blowing bubbles or exhaling is only very crucial during ascent only due to expanding air.
I agree with you that it's ok to hold your breath when descending or staying on same level.
Thanks..keep posting for more videos.
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This is a stress test?
Sargethepyromaniac 3 months ago
@Sargethepyromaniac
Try it your self, and send the responce afterwards!
elvijoensen 3 months ago
Should have both worn weight belts
dalidowicz 1 year ago
@dalidowicz
You are right. It would have made everything easyer.
We had 4 kilo weight integradet in our BCD, but when taking the BCD of, we had a posetive boyancy. We should have had the weights around our legs!
elvijoensen 1 year ago
From the 2008 PADI Encyclopedia of Recreational Diving, chapter 5-16:
Another way hypercapnia (excess CO2 in your respiratory and circulatory systems) occurs is through skip-breathing - momentarily holding each breath before exhaling...Intentional skip-breathing is usually done in the mistaken belief that it extends your gas supply. However, a decrease in ventilation causes CO2 in your blood to increase and stimulate breathing. Therefore, any gas saved is likely to be negligible.
seanhorgan 1 year ago
@seanhorgan - Well you are right about the CO2 absorbation into your body. In this video we are holding our breaths (this video is shot in a pool and this stress test would be done in confined water enviroment that is no deeper than 6 meters) so the CO2 absorbation would not be of crusial significance. On deeper dives we do not hold our breaths but we (hold) slow down the exhalation so we get the same air to last longer without compromise safety.
elvijoensen 1 year ago