Post Number: 1656
|Posted on Sunday, July 12, 2009 - 08:40 pm: |
Here an answer on a question from a Fit Mate user , which may interest more than just this client.
For us the VO2 max has very information , which are relevant for pulmonary based "training zoning"
We look at the trends , as we do this with lactate and cardiac assessments.
Now any VO2 equipment , which will give you the AT and ANT is doing really the same.
We assume , that certain metabolic changes in the energy supply may show some trend signs in the reaction of the respiratory system.
On this idea is the VT ( ventilatory threshold build upon )
Here some small thoughts.
1. The first time we may see a reaction in the respiratory system is , where we may "switch" from mainly O2 and FFA to now O2 and as well glucose.
There are two reactions possible.
a) The change to more glucose and O2 for the needed ATP production may cause a stimulation on the respiratory problem so we may see an increase in respiration rate or an increase in VE.
Now some research believes , that the CO2 is not a stimulator , others believe it is a very potent stimulator. This is the classical way of looking it .
So the second section to look for is the moment, where you switch from O2 dependent to partially as well O2 independent energy delivery for ATP upkeep.
Here the discussion is , that besides the higher pCO2 we now add as well a more intense H+ production and one way of trying to "buffer" the increased H+ is over increased expiration resp. higher respiration frequency and VE.
So the Blue line in the graph is exactly that and than the soft wear is looking for the lines.
You see three lines.
first is STF / FTF ? by HR of about 125 +_ which is close to 50 % VO2 .
The second line is by bout 155 + and is in this client close to his LBP.
The last line is by about 170 - 175 and is the ULL .
Interesting to mention is, that this numbers from this client are nice, as he has a respiratory limitation and we work on that for his next race.
So his LBP is close to his VT.
No Cardiac limitation as the SV steady kept going up and we never reached a CCT of 30 sec, despite the fact he had to quit.
Respiratory limitation ????
Now here what we look additional to what you get from the Fit Mate or any VO2 equipment.
We look at O2 per breath at the same time.
As you can see in the STF "zone" you need more O2 for FFA metabolism and as there is no limitation of teh respiratory system at that intensity we see a nice O2 intake.
Than as we move closer into the need of Glucose and O2 for ATP production we actaully for a short moment take less O2 in , as it needs less O2 for the same ATP delivery with glucose , than with FFA
Thats' why slow workouts can feel harder than some what faster workouts, , when the FFA energy delivery is not as well developped.
As we keep increasing intensity we se a clear change here just above LBP , where the O2 intake pre breath clearly dropes.
This starts at the moment where ATP delivery has to be as well produced by O2 independent.
and it seems to work , as the body seems to have two problems to solve.
1. Get rid of CO2 and potentially H+ indirectly over CO2.
As well look for a fast ATP delivery , which can be found in the O2 independent system. So there is less need for O2 at that time and as the TV often drops as well we are actually happy to have the O2 independent situation to reach the cave before the tiger.
Problem here as every body know is time. How long can I go that intense with this high demand on ATP ? That's where the whole questions start.
a) If the respiratory system would be better, could he move more and longer O2 than for now.
If the respiratory system is train do we perhaps see a change in the limitation to the cardiac system of to the muscular - skeletal system ?
Next thread I will give some personal ideas on why I think the discussion on :
Do we have to train hard and short or easy and long LSD is really the wrong way to go.
Actually I just add the short answer here:
There is no right or wrong in slow and long or fast and intense. Both is needed in the development of a personal best.
The question is not the intensity at all.
The question is, what kind of STRESSOR do I best apply at the current moment on an individual client.
Reality is, that if athletes plateau they often change coaches.
Now as a smart coach you will assess, what he did before and you will apply the opposite. Often based on more feeling than knowledge and as you know, what did not work you can't apply the same training idea to that frustrated athlete , as that was the reason he changed to you.
Now let's make a very practical example.
You have a young upcoming athletes , which with his 21 years plateaued. he is unhappy with his coach , the parents as well and he looses motivation and fun.
Step 1 : bring fun back with new and crazy ideas by trying to find out what the athlete likes to do.
Step 2 assess he past 4 years and verify the workouts as mainly high intensity functional nature or slow intensity structural nature.
Step 3 . Look at the ratio of this two possibilities and you have already a trend info and a possible direction where to go.
If he was the "start " junior and racing a lot you may see a very strong tendency to very high intensity workouts over perhaps a few years.
He learned to use most of his genetics up to a high percentage, but may have missed some structural development.
Now yes you are right this is all speculation build on experience.
This is not good , as you move this client from one coach who "BELIEVED" in high intensity to you , who may believe in LSD.
Now in the past it worked, as most of the athletes you got had a similar problem vice versa.
So the high intensity "church" is success full with that direction , as most of his new clients come from you as the "Church " of LSD..
So both will be successful for a short time period and this helps to keep the BELIEVE going , as the results are here.
The fact is , that both start to stress areas, the other "church" did not believed in and the body finally get some new stressors.
A potential solution is like in any too fanatic philosophy is to open the mind.
Now this is often hard to do.
Now the answer could be simple.
Take a FaCT CLR test and you can see, where the limitation is.
The LSD guy has an incredible good developed musculo skeletal base with an incredible mitochondria density. Problem . All the potential O2 users can't get the O2 delivered, as the respiratory system as well as the cardiac system never where challenged and now are the limiting factors.
In the other case all the high intensity produced a very efficient O2 independent ability , as well perhaps some cardiac situation ( low LVET so he can maintain a nice CCT for a long time in a high intensity.
But all the O2 he may be able to deliver can't be turned over into O2 dependent ATP production due to the lack of Mitochondria. So the musculo skeletal system is here the limitation.
The "art " of coaching here is to find the limiting systems and careful try to integrate them in the new program without loosing the high level he is bringing with him from the previous coach.
Accept the fat6c , that all coaches have a lot to offer, use smart the good work from the previous coach and add some special ingredients from your kitchen, which could be less believing and more knowing.
Now you are the "chef" and not the franchise cook
Have fun in the kitchen
Post Number: 1657
|Posted on Sunday, July 12, 2009 - 08:41 pm: |
Sorry forgot the salt ( Graphic )
Post Number: 1660
|Posted on Monday, July 13, 2009 - 12:58 pm: |
Here one of the studies , which explain some possible reaction due to CO2 changes and may help in understanding some of the above ideas.