Excellent discussion! Just a couple of weeks ago I reentered diving (after a hiatus of a number of years) on a fresh water diving trip with some friends from church. Among them is an instructor who also brought an oxygen kit from the dive shop that he teaches at. I was happy to see that my skills came back fairly quickly and I had in fact paired up with that dive instructor (through mutual agreement as we planned the trip) for the first two dives. The evening of that 2-dive first day, as we were sitting at camp reminiscing of the dives, I noticed that I was developing an ache in my upper shoulder muscles bilaterally symmetrical. I decided that I’m not going to “John Wayne it” and I pulled the instructor aside and described what I was experiencing. The first two dives were at depths of 30 feet or less, the majority being about the same depth as a safety stop. The majority of the time toward the end of both dives was spent in that shallow area. We had an interval of about 4 1/2 hours between the first and second dive. He correctly diagnosed it as simple muscle fatigue from not having had the weight of a BC, cylinder, and lead on my body for a long time and I wasn’t being careful about how I would need to tense my muscles when carrying that weight around. I’m over 60 years old. After some Tylenol, my issues resolved, but again I was not too proud to point out what I was experiencing. I guess age will give you a different perspective on the need to take care of yourself and that way. We had a ball for the rest of the week and the rest of my dives were very successful!!
@oguzhanelci8179 Жыл бұрын
Hello, I'm from Turkey and started diving a year and a half ago. I am now CMAS 2 star diver. I learned a lot of things from my club's instructors and get my own gear 2 months ago. Since then i'm watching lots of dive videos and yours are the best (my opininon of course). So i just wanted to say thanks for your effort and see you on the other videos. Have a pleasant day.
@marksallows113 Жыл бұрын
Great video Mark. I normally find something to disagree with you about in your videos, although I enjoy them all. But with this one, I think you covered all the bases.👏
@josephdracula7487 Жыл бұрын
👍🤿🇵🇭Thanks very good info!
@ahmedsamy8406 Жыл бұрын
Very informative thanks
@js4120 Жыл бұрын
I've had very mild tingling and numbness after a dive once after several hours and wasn't sure if it was o2 related or nitrogen. I think on successive days of diving hard i get cooler and maybe slows decompression the same way a hot shower speeds it up
@marksallows113 Жыл бұрын
I am uncertain what you mean by O2 related? Oxygen toxicity is a real danger. However, once you move into shallow depths, there are not normally any long-term effects. Same with gas narcosis, which is easily resolved, providing you have identified it by simply moving to shallow water. DCS is far more unpredictable and can start immediately or can be delayed sometimes up to 24 hours.
@ppo242411 ай бұрын
Tingling is a typical sing of DCS, not mentioned on this video for some reason.I'd say you had a mild hit.
@marksallows11311 ай бұрын
@@ppo2424 Agreed
@ssvv1 Жыл бұрын
Great video as always! Have one question for you... Is there any proven buffer to completely avoid DCI? Say, diving only 30, 50 or 70% of the time that dive tables suggest could reduce the risk (almost) completely of a undeserved DCI for a regular diver? Or as tables already have a buffer, the reduced risk from diving less time is not really noticeable? Thanks again!
@js4120 Жыл бұрын
I think the only guarantee is to stay out of the water
@ppo242411 ай бұрын
Tables are very conservative, most dive computers are conservative, just be sensible. a good break between dives, keep hydrated, nice slow scent rates etc and you'll be fine. Chances then are very very low of you getting DCS or DCI. And dive within your own limits, age makes a difference.
@asho2341 Жыл бұрын
First!!!
@chrisphilhower6029 Жыл бұрын
I Swim in a college pool. 13 1/2' deep. My Genesis Centauri flashed No Fly after swimming 4 miles. I do Lots of underwater swimming.
@ssvv1 Жыл бұрын
What units are the 13 1/2? Not sure if they are inches. So I can convert them to metres to understand your comment, thanks
@chrisphilhower6029 Жыл бұрын
@@ssvv1 13 1/2 Feet. Roughly 4M. I do around 242 laps in about 3 Hours
@rolandvavrek941 Жыл бұрын
Are you on scuba while swimming?
@chrisphilhower6029 Жыл бұрын
@@rolandvavrek941 Snorkeling.
@ppo242411 ай бұрын
Then you've got 0 chance of getting any decompression problems@@chrisphilhower6029
@ppo242411 ай бұрын
Would have been nice to know the age of the diver and the dive depths and times makes the rest of the info bit meaningless. Also, why no mention of tingling / pins and needles as symptoms, which are very common?