Great info, Mark! As a runner, this is something I am always concerned about after diving. The info about running prior to diving is new information to me. Thanks so much for sharing!

Numbers don't lie and still so many unfit and overweight divers everywhere. All these people do not think about the instructors and divemasters having to drag them out and perform CPR on them with all the trauma afterwards for them. Almost all boat dive operations I know let their staff load the boats with tanks ( up to 40 tanks on our boats) do 2 dives with the guests and then unload the load again, that is a huge exercise before and after diving. I guess your body adapt to it?? Thanks for this video and educating divers.

As a PADI DMT that's most likely going onto becoming an instructor, when is appropriate to exercise? I'm diving up to three times a day, 5 days a week. When is it safe?

@ScubaDiverMagazine

7 ай бұрын

The current recommendation is that it's _best_ to avoid strenuous exercise 24hrs either side of a dive. If you want to be as safe as possible I'd keep it as easy as possible post-dive and minimise the force on your joints as much as possible. Just think about your tissue loading the next time you want to go for a run. If you've been doing a lot of deep dives or long dives where your slower tissues are becoming saturated maybe wait a while before hitting the gym or the running track.

#askmark Any chance we get to see Rupert and Daisy again? Loving the videos 😃

@ScubaDiverMagazine

7 ай бұрын

Sure, I'll see if I can wrangle them both onto my bench for a video.

Regarding how long to wait to exercise post-dive, an experienced instructor i recently dove with made the point that the recommended 18-24 hr "No Fly" time or ascent to altitude after diving, is because of reduced air pressure below 1 atm, and that if one looks at dive tables one will see that at sea level 1 atm, a diver is desaturated at 6 hrs post-dive. Since i often like to skin dive after scuba, his advice was avoid that for 6 hrs post-dive and that would be safe. If that advice is sound, then the same guideline would apply to exercise perhaps. So the waiting 24 hrs post-dive as you recommended for that is unnecessary do you think? Thanks for great videos. Learn a lot!

@24sniegu

7 ай бұрын

I should add this advice regarding dive tables and time to desat was after rec dives of less than 25 meters!

@ScubaDiverMagazine

6 ай бұрын

It's a subject with many variables and most recommendations will err on the side of caution but, I'll follow the recommendations of Dive Doctors who study the subject over an Instructor and recreational dive tables. While you may be de-saturated after 6h, you can still have dissolved gases in your slower tissues that may form bubbles in pressure drops and heavy exercise.

When I did my OW Dives back in Aug, my Genesis Centauri showed "No Fly" for 24 Hours. 3 Dives on Day 1, The 4th on Day 2. The Hotel I was staying in put me on the Ground Floor when i told them why I was there. I checked out before the 4th dive. And drove the 3 hours home. Fortunately I didn't have to drive through any mountains. I can't imagine someone going running after the Dive. I'm guess they dropped their gear at the dock??

@ppo2424

7 ай бұрын

Dice computers tend to be pretty conservative, depending on the brand, You can do 3 dives in a day, but I'm not keen on it unless the last is a night dive. Your dives would have been quite shallow within ND limits. The risk of any Deco problems would have been low. That said I always leave 24 hours before flying and as for driving in an elevated area, if the computer says no, better to be safe than sorry. In a nutshell don't do it And running after diving, dumb frankly.

@chrisphilhower6029

7 ай бұрын

@@ppo2424 the Centauri has a Conservative setting. It's in Normal mode. Maximum Depth was 40 feet. I spent about 2 Hours underwater on Day 1. Day 2 was the Deepest and last dive

@MrNeobuxer

7 ай бұрын

3-4 dives a day are fine. That's what happens on liveaboards, for several days in a row. 18 hours is recommended by DAN, but there is no harm in pushing it to 24 hours to be on the safe side, if of course you're diving recreationally. It would be good to know what your algorithm and gradient factor your computer uses.

@chrisphilhower6029

7 ай бұрын

@@MrNeobuxer Bühlmann ZH-L-16C Algorithm

@MrNeobuxer

7 ай бұрын

@chrisphilhower6029 it's interesting your computer gives you that 24 hour no fly. Unusual. But anyway, no harm in waiting 6 more hours:)

E.g. US Navy have done lot of human subject research... All navies have... Recreational divetables are based on old data from those researches. When you go deeper to science there are many different tissues in human body which absorb gasses different speed. We know main things from oxygen and nitrogen... Those different tissues also "donate" gasses different speed. Absorb and "donate" speeds are not same and you are not normally breathing only oxygen and nitrogen... There is many other gasses in small amounts of air which we don't know how they work in our body when partial pressure rises or sets... Tissues temperatures and SAC rates are also important factors. We need more human researches.

@24sniegu

7 ай бұрын

Regarding how long to wait to exercise post-dive, an experienced instructor i recently dove with made the point that the recommended 18-24 hr "No Fly" time or ascent to altitude after diving, is because of reduced air pressure below 1 atm, and that if one looks at dive tables one will see that at sea level 1 atm, a diver is desaturated at 6 hrs post-dive. Since i often like to skin dive after scuba, his advice was avoid that for 6 hrs post-dive and that would be safe. If that advice is sound, then the same guideline would apply to exercise perhaps. So the waiting 24 hrs post-dive as you recommended for that is unnecessary do you think? Thanks for great videos. Learn a lot!