You cant avoid co2 build-up, you can only slow it down, main factor here is relaxation. Particularly your brain needs loads of o2, so if you can keep that calm it helps a lot. Obviously a slow metabolism helps as well, so before big static performances fasting is common.
And regarding co2 tolerance, it is a training effect. With training you can withstand much higher levels of co2 without resulting in panic
And co2 build up isn't even that dangerous, just really uncomfortable. Lack of co2 (from hyperventilating) actually inhibits oxygen uptake and causes dizzyness (up to passing out) that way
- A coach / safety will give a signal to the athlete, e.g. pinching of the arm and the athlete will react to it by e.g. lifting a finger.
- Training. You get to know your body and limits very well when training freediving for a longer time. That does not mean that you always avoid blackouts, particularly in competitions they happen but that's what safeties are for. In the end, a free diving competition is one of the safest places to explore your limits.
I've seen people react so instinctively to tap-out signals both in martial arts and sometimes outside of it that I've often wondered if you could fight dirty in a real fight by tapping out and then clocking them or at least breaking a hold during that instant where they start to back off.
I think I have used it successfully both in chiropractic and physical therapy contexts. The thing with really top-shelf pain is that if you're not screaming you can't even talk at all. But your hands still work.
These sorts of little reflexive physical communications are super effective.
For sure - what I find interesting is that passing out is a disqualification (I assume) so there is a fine line between achieving your utmost limit and being disqualified. Which is like most sports but my understanding is that it is quite easy to accidentally slip under so the guy must have incredible body awareness
Correct. Usually you need to perform a so called surface protocol after surfacing to show you are still conscious enough. This can be e.g. the removal of your mask, an OK sign and saying "I'm OK". Only if you do that within 15 seconds after surfacing your performance will be valid.
And regarding easy to blackout. Yes and no, I personally avoided it for over 12 years, but then again, I'm no world class athlete and only an enthusiastic hobbyist.
In a documentary about freediving they explained that during competitions there are strict rules and steps for the diver to follow after they emerge from the water surface. Only when followed the dive is considered ok.
Why not? Its a big difference whether you go ski jumping in leggings or in a wingsuit. Obviously the difference in reality is less, but the principle stands
Not sure your last statement is necessarily correct, just think of the massive doping in the former soviet union. The prestige gained by countries due to e.g. the Olympics regularly causes people to use illicit means.
I thought the same but after watching the Netflix TdF documentary I would not agree to your statement anymore. Team strategy plays a huge role as e.g. driving in the slipstream saves up to 40% of your energy expenditure.
There is a sport called finswimming which has underwater speed disciplines (apnea or with bottles). But as the name implies it comes with the use of fins.
Nice implementation. I found it very intuitive to find the necessary features like marking a mine or tapping on a number that has all its mines marked to reveal the safe squares.
But it might still be good to put a short description somewhere for people not as familiar with the game.
Would be interesting to know what integrator they use. Verlet schemes can be implemented with very little effort and they don't suffer from this issue (see e.g. the leap frog method).
But in general you would nearly always add some sort of damping mechanism, particularly for CG applications.
