Dude, thank you so much to Lionel for allowing us to watch and see all the stuff he does in order to perform at the highest level possible and thank you so much for the guy who's recording and uploading all of it! Without these two dudes we would all probably never know about what goes into being the best or being on the journey to being the best. All this stuff is so freakin interesting and I could sit down and watch that stuff for hours and hours and hours. Keep it coming!!

Immersion diuresis, which literally means “water loss due to immersion,” is the culprit behind that urge to pee when you are in the water. The lower temperature and increased pressure of the surrounding water makes you pee. It’s really as simple as that. Immersion diuresis is a physiological response to being submerged in water and it’s actually part of the Mammalian Dive Reflex. When the body is immersed in water the colder temperatures and increased pressure from the surrounding environment causes a narrowing of the blood vessels (vasoconstriction) in your extremities. As a result of this vasoconstriction, your body moves blood volume away from your skin and extremities and redistributes it towards your core areas. So your coach was partially right with the cold part; the other parts being the increase in pressure and the mammalian dive reflex. Nice work out there Lionel! Can’t wait for the next video

@user-ys6hl1uy1t

4 жыл бұрын

James Rasmussen, you forgot he is swimming in SALT water, they should weigh him after a swim in a wet suit.

@taylorcall2951

4 жыл бұрын

This is correct. It is the compressive forces of the water that make us pee while swimming.

@emane17

4 жыл бұрын

@@taylorcall2951 he is not being compressed under water. He is swimming on the surface. What makes him urinate is the following: the cold water causes his peripheral blood vessels to constrict, redistributing blood flow to the core to maintain normal core temperature for the vital organs. This causes an increase in blood flow to the kidneys, causing an increase in urination. The opposite happens in heat. Dr Edson

@nfkb0

4 жыл бұрын

Also, the rise in venous return because you lose gravity in the water rises the right atrium pressure releasing natriuretic peptides

@lincolnstephen618

4 жыл бұрын

I hypothesize that the conventional thinking and practice of contraction of the abdominal muscles during swimming, for example; drawing in the belly button and maintaining tension in the abdominal region to assist your streamlining, might be over stimulating Lionel's abdominals and may be a contributing factor in creating excess pressure on the bladder. Practising intra-abdominal pressure while swimming (in conjunction with overall practice of Dynamic Neuromuscular Stabilisation, or DNS) could reduce this factor by creating more room in the abdominal cavity for the organs, more room for the diaphragm to expand into for more efficient breathing while still giving support to core region. Also, it allows better rotation through the thoracic area by reducing excessive tension of the abdominal muscles which may increase overall swimming ability.

Lionel, this is fantastic stuff. Really appreciate you posting the data analytics and how the body is reacting to the stress of SBR. Please keep these types of videos coming. Incredibly interesting.

We very rarely get a true insite to a professional sportsperson training. Lionel and crew are amazing sharing it.

I am fully geeking out on your videos! Thanks for posting!

Very interesting video. You really are a champion for posting this information. Thanks Lionel and Talbot.

Mega interesting series! Thank you all!

One of the most interesting and educational videos to date!

so excited with new videos.. as a newbie just gives you the inspiration to go and strive for greatness

Just love these videos. Absolutely priceless. Thank you!

AWESOME. STUFF. TALBOT!

Nice drone work Mr. Talbot. 👌

Love this. Your videos always pull me out of a funk✌

LS: to make this test effective, you *have to* do the same pre-race routine, breakfast, fluids etc. Include "wash room stops" pre-start. I would even do the same time of day as the race start

@TheOnlyAsAnd

4 жыл бұрын

These guys seem incompetent at experiment design. Really embarrassing!

This is great, really interesting science and actually in the real world and not some lab or TV show. Another great video (you need to another GTN interview btw :) )

Awesome Sand-Dog. I piss like crazy in the water too. You ain't alone.

This is so good for you Lionel, I hope you get some benefit 😎

Very interesting video, and I like how you release a lot of your numbers.

Lionel, "I feel like my body is absorbing the water" David, "That would biologically impossible!" Great video as ever. Loved the content 👌🏼

Very interesting analyses

Moustache in the water, watch out for the super fast swimmer!!! 🤙💪😎

Very interesting. I wonder if you do this test again in September before KOna would the efficiency have risen.

I hypothesize that the conventional thinking and practice of contraction of the abdominal muscles during swimming, for example; drawing in the belly button and maintaining tension in the abdominal region to assist your streamlining, might be over stimulating Lionel's abdominals and may be a contributing factor in creating excess pressure on the bladder. Practising intra-abdominal pressure while swimming (in conjunction with overall practice of Dynamic Neuromuscular Stabilisation, or DNS) could reduce this factor by creating more room in the abdominal cavity for the organs, more room for the diaphragm to expand into for more efficient breathing while still giving support to core region. Also, it allows better rotation through the thoracic area by reducing excessive tension of the abdominal muscles which may increase overall swimming ability.

Thanks for sharing guys ! @talbot cox you need to put some cash in mikes :) especially to listen to DTD when he is out of the frame of your DSLR

@TalbotCoxMedia

4 жыл бұрын

One man show dog one man show. 😆 not a film crew.

i think all this testing/optimization is absolutely crucial at that level of performance. It is very thin line between peak performance and winning races and just bonking.

Top!👏👌👍👏👏👏❤👍.

💪💪💪💪

If the cold creates the need to pee, is it not possible it’s also driving heart rate down too ( parasympathetic response ) ? Fascinating to watch this process of breaking g it all down - amazing work from you all

Lionel stole that Kona Shaved Ice sign! Quick, call the cops! 😉

He cannot stand the flat calm of the coach already...😂

MR sanders you look like vegeta ( dragon ball ) with this swimming goggles like rating the power of your rivals ¡¡¡¡ hahaha keep pushing man

Lionel's face at 3.00 is one of not liking interruptions. Not sure it is going to last. Hang in there Lionel!!

@phxrsx

4 жыл бұрын

Haha I noticed that.

A bit of scissors kick, especially the first after breathing. Which, I guess, comes from kicking too much from the knee, rather than the hip. And having the legs spread that wide creates hack of a lot of drag. Lionel's swimming has improved substancially, but there are always small things that can make big difference if corrected. And this is an easy one to correct. And well, buying a 2nd hand wetsuit is never a good idea😁 Anyway, nice approach, having it all dialed in based on pro research. No place 'bro science' here 😉

Based on the data collected from swimming, what changes could Lionel make? For example, Lionel emphasized that he lost almost a kilogram (2 pounds) after finishing the swim. Entering T1 he’s already in a significant calorie deficit, perhaps?

I would have the same skeptical look as Lionel when the coach is explaining his HR going down on the second lap with his form falling apart and stating that he is getting the same power output.? Seems to be some flaw in that logic. Every other discipline, form collapse equals less efficiency with an increase in HR to maintain the same power\pace. But maybe I only caught part of the conversation and didn't understand what he was actually saying.

@bow.1073

4 жыл бұрын

I am still pondering the decreased HR. I am wondering if they tracked his stroke rate on the return. He said he had the same perceived rate of exertion and was 1:30 minutes slower with a HR decrease by 10 beats and felt fatigue limiting him. Wouldn't surprise me if he still had quality strokes but glide phase increased resulting in decreased stroke rate but also decreasing his HR.

is the temp of the water not a factor in oct? different from the time that this video was film?

It's common to cut weight (sweat) by taking Epsom salt baths. I don't think it's the same as sea salt but you do sweat when swimming - usually less than when running but the amount varies from person to person so you could be sweating a lot more than when running compared to others. Do you use any lotion before a race on your body? Another weight cutting technique is to use alcohol with a bath because the body reacts by sweating more - commonly used by fighters, weightlifters, etc.

Great Vdo. Thanks for sharing the data. Now water temperature is around 25.9c in October close to 27.0c which could make a bit of difference. Higher heart rate and more fluid loss. Lionel techique at pool has improved a lot. At open water didn't look smooth. I think his breathing rythm is not right.

For each 1g of glycogen stored, 3g of water also stored. So, as glycogen is utilised in exercise, what happens to the water?

If they change the course, will you be pissed? 😅

@JoshNishitani

4 жыл бұрын

esotericpig won’t make a difference it’s in the same area and the same distance

@gl4989

4 жыл бұрын

Water is water

Lionel, I like you, I must admit though, youre body language suggests you're not sold on the science yet.

Which goggles are those? Didn't realise they had the HUD display until the end when he Lionel was messing around with them

@FORMswim

4 жыл бұрын

Hi Ray, they are the FORM Swim Goggles. Visit our website to learn more: formswim.com

@trbeyond

4 жыл бұрын

Yes they have a great display but won’t give you data in open water.

n addition, the cooler the water, the greater the diving response, potentially leading to a lower heart rate and higher blood pressure. Some people respond so strongly to cold water that just putting their face in a bowl of cool water can make them pass out from a low heart rate.

well, I would say, this was incomplete... 1) swimming in different tri suit compared in race 2) having dry swimsuit before and wet after...? 3) Not catching urine... so you don't know how much you sweat and how much you ... (this is hard to measure, but is possible) #JKcoaching

I think the form goggles separate the swimmers from the people that swim because they do triathlon. I can't see anyone I train with as a swimmer ever using them. They are a good invention if you require them though.

Glycogen uptake is extremely variable. To assume concrete numbers is a big mistake. Testing is key. Time over a season is the answer.

Lionel you look like you want to call out that coach or something lol

@TalbotCoxMedia

4 жыл бұрын

Brandon Wayne that’s just Lionel’s personality. He processes everything. He is at work.

@fishywishy4145

4 жыл бұрын

I love u Talbot

Has Lionel reviewed those goggles yet?

The only data he needs for his bike and run: At 164 pounds he is about 14 pounds too heavy. About 2 sec per mile in the marathon PER POUND! So at 150 he is about 25-30 sec per mile faster at the same fitness.

The only swim data he needs is this: Can you do 40 x 100m leaving on the 1:15. If you can, you are in the front pack. Loose one liter in an hour swim? Common knowledge for about 25 years.

Where can i buy those speedos?

Its very hard to understand the audio!!

These vids have turned me into a total data junkie. 😸 Also can you do one that shows how to maintain your stroke WHILE you pee? I need to like, float for a sec. Cheers!

Curious How did he know his Hr when he wasn’t wearing a HR strap or watch?

@realalbertan

4 жыл бұрын

You missed it. Sensor on his temple.

@eugenius1226

4 жыл бұрын

Race Pace Masters Swimming ah cool is that part of the Form Goggles ?

@FORMswim

4 жыл бұрын

@@eugenius1226 Yes, the FORM Swim Goggles sync with the Polar's OH1 + heart rate monitor so you can see live heart rate as you swim.

Is he still working with Gerry?

not gonna lie that coach getting me mad right now @talbotcox

@phxrsx

4 жыл бұрын

Whys that?

Why wear the Form goggles in open water other than for the advertising?

@phxrsx

4 жыл бұрын

He can see live heartrate.

The financial cost of this must be ridiculous! but you get the data, so more than likely money well spent.

How often do you pee in the pool? Me? Oh never... lol 10 seconds earlier I pee 100 times in a 85 degree swimming pool

i never pee in the pool... clasic

@taylor1991

4 жыл бұрын

Exactly what someone who pees in the pool would say

I totally get the advantages of the data from goggles. But are they comfortable? They look like they make a lot of deep red rings around your eyes.

Era pra ter legenda em português

What goggles is he wearing?

@phxrsx

4 жыл бұрын

Form goggles. They display pace and distance I think inside of the google while you swim.

Lactic acid is buffered out through the Urinary System

@lukeebeyer2131

4 жыл бұрын

www.heighpubs.org/jsmt/pdf/jsmt-aid1037.pdf

song at 00:48 pleasee hahahak

You pee a lot in the water due to the pressure of the water on your internals. Spoke with my urologist about this and he explained it.

Interestingly, I feel sad at the end... like the mood changes significantly at the end. Lionel seems disappointed, not sure what that is from (if that's the case) considering it's a session to just collect data.

@phxrsx

4 жыл бұрын

He's searching for that magic bullet it seems.

@sharkdom

4 жыл бұрын

@@phxrsx the magic bullet is... that there is no magic bullet. Lionel seems to not have realised this yet.

I am sympathetic to his plight, but who does a test like this when admitting before it even begins when weighing himself that he must be dehydrated (from yesterday) [3:36]. Sadly that one thing renders everything on this video pretty much useless.... HR data tells you nothing... fluid loss... useless.. I hope they’re not paying the science guy too much.

@Yamaha_Bolt

4 жыл бұрын

General Enquiries elaborate on what metrics he should use then? In a morning outing it’s almost impossible to not be slightly dehydrated.

@generalenquiries3487

4 жыл бұрын

The whole point of these tests is to see how his body behaves on Raceday. My guess is he won’t rock up on race day and say - shoot... I’m dehydrated... Every data point they captured from that moment on is basically useless..

@sharkdom

4 жыл бұрын

@@generalenquiries3487 History suggests he probably will do exactly that (turn up on race day and say I'm dehydrated)

These experiment is only good for getting the Gist of kona on rave day, the rest is circumstantial which is sadly wasting most of your time. If these tests gets your confidence up for race day then go ahead but know the translation of your experiments to actual comp will be minimal at best.

I’m afraid I don’t see much future for all this science-like stuff from the ‘guru’. Curious about how long shall LS keep up with this guy.

10.29. "you're just saying words and numbers now aren't you.?" " yep" "you don't think I can win do you? " "Duno" "Am I still paying you though? " "Oh God ye"

Dude, use Magic5 goggles. They are so comfortable and you finish without the goggle marks. Custom fitted and produced. If they are good enough for Ben Kanute....

Maybe your drinking water while swimming without even realizing it. Small amounts over the whole time swimming is adding up enough to make you pee.

max intake of 90 grams is a bit dated tho

If you are well hydrated and your HR is zone 2 your kidneys are at their peak perfusion. You are going to pee a lot.

Lionel, why didn’t you put on the wetsuit like in the race? Temperatures and intensity could be different...

@mikehammersley3489

4 жыл бұрын

Marc Hollander Kona is never a wetsuit race

@realalbertan

4 жыл бұрын

That water is too warm for wetsuits

@roydos949

4 жыл бұрын

You mean swimskin?

@marchollander7392

4 жыл бұрын

roydos true, yes I meant the swim skin 👍

Why wouldn't he wear the suit he actually races in?

@jerks6215

4 жыл бұрын

4130CYCLING that want the point of the experiment. Fluid loss, heart rate, blood work will be almost identical regardless of swim outfit.

@jean-philippeperrault1678

4 жыл бұрын

4130CYCLING in kona wetsuits are not allowed due to water temperature.

@DCTaylor281

4 жыл бұрын

@@jerks6215 know in his race kit there would be some difference. Big or small it wouldn't be identical.

@DCTaylor281

4 жыл бұрын

@@jean-philippeperrault1678 he's still not using the kit that he'll wear during the race.

@jerks6215

4 жыл бұрын

@@DCTaylor281 Which is why I said "almost."

Swimming is the best to teach Newton Law, its pretty simple if you care to learn about it. Why your HR goes lower when you feel like you're putting more effort and actually going slower. Yeah the cause of peeing in the water, is called vasoconstriction. The body constrict the blood vessel to direct the heat towards the core to keep it warm, so this puts strain on your arterial valve(increase in blood pressure). And the best way to manage blood pressure is to relief bodily fluids, in this case your body goes through what its called "cold immersion diuresis". Kidney filters too much fluids which increases urination.This is also the theory why open water swimmer may suffer from SIPE.

those goggle marks...

@petertaylor123

4 жыл бұрын

Should change to magic5's. I love mine. Comfortable. No goggle marks after a 2hr swim...

.....what? no wet suit for this data collection....?

lionel totally pees in the pool

That coach doesn’t seem to be very convincing in body language and speech.

Don't swim draft Lionel

he has cuts around his eyes from those stupid glasses.

@phxrsx

4 жыл бұрын

Looks like they are cutting into his skin yeah.