Weird sensation on frc static

[Gary.Lowe]

Hi All

I have been trying some dry frc statics

Between 20 - 30 seconds I get this weird sensation. It's not quite a shiver but like a wave going through my body. Seems to always start at my fingers then move through my body.

Not sure what it is but feels very strange.

 

[trux]

Look up the term vasoconstriction (part of the diving response) here on the forum. It comes quick and strong on FRC, and that's the reason why FRC is so efficient.

 

[Kars]

Mesure your HR before and while you hold your breath, on FRC it goes down quicker, hence bloodshift and vasoconstriction. I welcome such sensations as they indicate I'm saving O2!

 

[Gary.Lowe]

Mesure your HR before and while you hold your breath, on FRC it goes down quicker, hence bloodshift and vasoconstriction. I welcome such sensations as they indicate I'm saving O2!

Thanks Kars. Bang on

Just put my HR monitor on and tried it out about a dozen times.
My HR monitor only goes down to 40 bpm.

The moment that first tingly wave comes the monitor goes to 'Lost Signal'

 

[Simos]

Only in a freediving forum can a 'lost signal' message on a heart rate monitor be a good thing lol

 

[Kars]

Thanks Kars. Bang on

Just put my HR monitor on and tried it out about a dozen times.
My HR monitor only goes down to 40 bpm.

The moment that first tingly wave comes the monitor goes to 'Lost Signal'

Well, it's an excuse to seek an 30 HR model

BTW on some extreme experiments I had even those go to "00"... Then a medical student measured my neck artery, it was below 20. with those looong slow waves of blood going through .

However go slow take your time, and enough rest, and tread carefully new terrain. :hmm

 

[Bleeth]

Yesterday i was reading something about this FRC, so i decided to give it a try with a few static attempts (longest being 65 sec, that's really crappy time for around 50% of my lungs capacity, and it was much harder than doing around 4min on full inhale which is my current limit) ). Well that was a bad idea, it's a shitty feeling (it does however resemble the feeling of having no air when you're training at depth, so it must be a good exercise) and i got my trachea squeezed . Only the 1st 30 sec were OK, but when 1st contraction hit i almost knew i'm gonna get squeezed in the process of fighting them. So no more FRC for me, getting squeezed while doing static is not something i expected. Uddiyana bandha also always gives me that feeling that my trachea is getting squeezed, the feeling is the same except there is no blood.

 

[Simos]

Thanks for sharing bleeth, I knew there was a possibility of that but hadn't heard of anyone that got squeezed from dry FRC yet. If you don't mind just a couple of questions:

1. Are you 100% it's a trachea squeeze and not something else? How?

2. You mentioned you almost knew you were going to get it - what was the feeling? Negative pressure around the base of the neck?

3. Were you getting a big diaphragmatic movement during contractions (bigger than normal)?

Thanks and hope you recover soon

 

[Bleeth]

Thanks for sharing bleeth, I knew there was a possibility of that but hadn't heard of anyone that got squeezed from dry FRC yet. If you don't mind just a couple of questions:

1. Are you 100% it's a trachea squeeze and not something else? How?

2. You mentioned you almost knew you were going to get it - what was the feeling? Negative pressure around the base of the neck?

3. Were you getting a big diaphragmatic movement during contractions (bigger than normal)?

Thanks and hope you recover soon

1. No, i can't be 100% sure, the thing is i noticed the traces of "already old" blood in my spit when i cleared my throat a few h after i did FRC static, but since i had the weird "squeezed" feeling in the trachea area since i did FRC i just assumed it's most likely trachea squeeze.
2. Exactly and i get that feeling with every contraction i fight (and the pressure gets more uncomfortable with every new contraction i fight)
3. i'm pretty sure contractions were not bigger than i usually have (when i do full inhale (i find it easier to fight earlier contractions if i somewhat exaggerate diaphragmatic movement, and that is not possible when doing FRC 'cause i immediately get the feeling like "my diaphragma wants to suck my throat in", if you know what i mean)

 

[Ms Mer]

I tried an exhale static the other day for the first time at training. Only a really short one as I just wanted to experience the sensations of bloodshift and 2 others in my buddy group were doing one and describing how it felt so I thought I would give it a go in a sae environment. Talk about a quick response alright! And the sensation is weird but I kind of liked it. The need to breath felt different. I did not breath hold long enough for a contraction so didn't get to the stage Bleeth did, sounds unpleasant!

 

[Kars]

I love the feeling of bloodshift
The simplest way for me to experience a nice 'hit' is to do an exhale dive to the pool bottom (-3,80m), relax, await a few contractions - relaxing through them - and then slowly swim up. When I inhale at the surface it's all delicious bloodflow Best enjoyed eyes closed

It sounds like I'm advocating some sort of drug, well this one is organic as well

 

[Fondueset]

I wonder about 'fighting' contractions - I get the sense of a lot of force involved. I try to relax through contractions.

 

[Kars]

indeed.

Work on relaxation and flexibility.
Maybe use your hand to feel how your throat is moving. Let somebody observe it.
Head position also is a big influence.

Take small steps.

 

[Ms Mer]

indeed.

Work on relaxation and flexibility.
Maybe use your hand to feel how your throat is moving. Let somebody observe it.
Head position also is a big influence.

Take small steps.

What head position is best for frc static? Chin tucked onto chest to constrict throat?

 

[Simos]

What head position is best for frc static? Chin tucked onto chest to constrict throat?

Don't see any point to constrict throat unless you are trying to black out lol (I stand to be corrected)

You shouldn't get any significant build up of CO2 on FRC if that' s what you are trying to avoid. Or are you worried about squeeze?

 

[Kars]

What head position is best for frc static? Chin tucked onto chest to constrict throat?

When you don't have good control, going head first, looking up at the approaching bottom, and trying to equalise is difficult.

When I do exhale dives, I go feet first, looking a bit down, head tilted a bit down, so the throat is relaxed.

Use a mouth-fill to equalise. You can reopen and relax on the bottom.
Don't resist contractions but move with them, that is the whole body if needed.

Also warm stretched muscles are better.

I hope it's useful.

 

[Ms Mer]

Don't see any point to constrict throat unless you are trying to black out lol (I stand to be corrected)

You shouldn't get any significant build up of CO2 on FRC if that' s what you are trying to avoid. Or are you worried about squeeze?

LOL, no not trying to do a Michael Hutchence. What I meant by constriction is similar to what I do at yoga with ujjayi breathing - making a small constricton in the throat and tucking the chin onto the top of my chest. Perhaps not necessary for frc though.

I have not yet done a hold on frc long enough to experience squeeze (I don't think?)., only did about 20 seconds but in that time I felt bloodshift which kicked in within the first few seconds of the hold and a tight feeling in my chest - I think that is the best way of describing it. I will try it again at training next week for a longer time and see what that feels like.

 

[rimimik]

yes u r right gray.
i am full agree with you.