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Jiri Dostal

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 #1 
Hello everyone,
please find the attached. This is a great swimmwer test we have done just before the Christmas. I think, this worths sharing, as we do not have here many swimming test, and it was technically not that easy, however we made it. I am sharing it here without conclucions, so everyone can try to think about the outcome of the swimmer. 

Few words about athlete - she is just below 30, specialist in breast stroke with great technique, she is on to national level for many years, and usually makes it to the finals or B finals in the EU and WW championship. She had all her life regular swimmer training, like a majority of the current elite swimmers. Nothing special. The task we have is to help her to succeed in Rio...

Happy readings, good luck with conclusions and Happy Holidays!

Jiri

 
Attached Files
pdf Swimmer_Test.pdf (646.50 KB, 48 views)

fitbyfred

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Posts: 168
 #2 
Jiri, hi. Thanks for the interesting post. 

The PeriPedal will not receive any MOXY signal from the dorsal muscles ? 
DanieleM

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Posts: 264
 #3 
Hi Jiri and thanks for sharing these valuables data.

From the 5/2, the first thing I noticed is that all the muscles are desaturating less throughout the step intervals.
She must have a great delivery system which kicks-in after the first interval.
RF seems to be used less during the course of the intervals.
The resaturation at recovery,even if I do not have the data, looks very fast: possibly great mithocondria density.

I have some doubts about the BB trend during the last interval which should be "high intensity" (confirmed by lactate and Respiratory Factor values).
I would have expected a much lower desaturation level (approximately same as the 200m race simulation).


Jiri Dostal

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Posts: 51
 #4 
Thanks Fred and Daniele

to Fred - Peripedal does not work, even from dorsal muscles. 1 - she always dive for first 10-15m, 2 - even if she would be on the surface, it would not work - the reachable distance is shorter then 1/2 of the swimming pool. So the really only option is to combination of HR from Garmin, and Moxy to save NIRS data

to Daniele - great comments. I would love to have Juergs thoughts on it as well :-) 
I also think, she has an issue with oxygen utilization, while her delivery system works fine. Here are my thoughts on it:
- tHb - compression, and then occlusion with no outflow at the end of each break
- limited SmO2 drop - 5-2 - highest at the begining, not limited desaturation at the end. 200m - reached a plato with no further desaturation, while in the max effort. Max reach value 20-30% is far high for such girl with great technique and 20 years of swmming. 

I know her, she is a typical "pacer" - she is able to swim well on a constant ( still very high) speed, while fails immediatelly when she increases the speed above "critical speed" or whatever wa can call it. She is not a sprinter at all.

BB trend at the last interval was affected by loss of contact, so numbers are not exactly valuable.

Yes, I also expected much higher deoxygenation ability.

Now the question is, what to do with her.... Any thoughts? I keep mine for myself now, and would be curious to hear from others :-)  I will then shere mine.

J.


Ruud_G

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 #5 
Great data! Just a question. It seems in the last interval she moves activity again more to her legs compared to arms (smo2 in rf and calf go down again, while bb goes up). What is your thought about that? Is that a pattern typical for swimmers who get tired?

Wrt the 200 m. When did she start? It took about 30 sec for smo2 to drop to the plateau. When going all out it seems a slow response in utilisation. Excuse me if not so. I am no swim expert [wink]
Jiri Dostal

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Posts: 51
 #6 
Not sure about the last interval. I will ask. However I know, they usually increase number of strokes for the last 25m  during the race. This is mainly driven by hands - look at the last section of the SmO2 BB during the 200m.

200m - she always starts with first 15m free flow undwerwater, so in fact, there is no all out at the beginning. Then she goes the rest ( 10m) with two strokes, then turn and go back with 6-7 strokes per another 25m. ( it was a short 25m swimming pool). So in fact, this is very different that your cycling all out exercise :-)




juergfeldmann

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 #7 
Will be  back on here  for sure  already working on this since  one  day and playing around  with this information.
 Nice in swimming  would be  the RF  as they have a relative fixed habit  when  they breath  and  so we have an RF  in  most cases.  Do  they increase    from  every second    stroke  to every time  or  do they    breath every time  or  doe they in fact may reduce  RF. depending on the  distance . Than  depending  where we see a limitation we may use the RF   for specific stimulations. Will be back over the weekend  as I am running far behind.
DanieleM

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Posts: 264
 #8 
Jiri, just few extra suggestions.
1. From the 5/2, it is evident the desaturation on the calf each time she turns around and pushes with the legs (13 times)
While I may expect something similar on the RF, what is strange is that the same behaviour can be seen in the BB which should instead have a different trend.
Looking at the 200 meters "all out" the SmO2 curve is instead very flat.

2. In the incremental steps, she must consume more oxygen at each steps but the desaturation in all the muscles is less than the first. 

3. Looking at the recovery from 200m, BB has a much faster kinetics compared to RF. That could be "expected" since BB is heavily used by swimmers and she developed a lot of capillaries and mithocondria.


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