lactic acid

[hydroxyappatite]

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following exercise,ventillation is in excess of the metabolic requirement.During this period,the level of lactic acid in blood
1. increases
2. decreases
3. remains unchanged
ans. is option 2??????

 

[skabbaraju]

following exercise,ventillation is in excess of the metabolic requirement.During this period,the level of lactic acid in blood
1. increases
2. decreases
3. remains unchanged
ans. is option 2??????

The answer could be right because lactate that is formed in the muscle is absorbed into the capillaries and taken up by the Liver to form more glucose for the skeletal muscle.
Any other comments.?

 

[yermi alcantara]

following exercise,ventillation is in excess of the metabolic requirement.During this period,the level of lactic acid in blood
1. increases
2. decreases
3. remains unchanged
ans. is option 2??????

in my opinion the answer is #1

 

[drkooks]

following exercise,there is a period of hyperventilation to pay off the oxygen debt that happened during exercise
that's why with hyperventilation there is increase in PH so decrease in acid
that's why lactic acid decrease

 

[hydroxyappatite]

thank u for the help ...... i think i understand now

 

[skabbaraju]

in my opinion the answer is #1

Why do you think so.?

 

[hydroxyappatite]

i find the first ans to be more convincing somehow.....must be due to absorbtion into the capillaries

 

[Doctor Dj]

It's avery tricky question , I think the key word here is EXHAUSTING exercise then the answer would be number 1 because it takes 1 hour to get the blood to the normal levels,

but if it just mentions exercise then the answer should be 2

 

[bigstix808]

not sure if this question is meant to be answered from the information given (application based), but i have an extensive exercise physiology background and i know for a fact that blood lactate levels are elevated for at least 9 min post exericse. sure, the levels drop after the first minute post exercise, but compared to resting levels, they are elevated. so baiscally...

lactate levels start off high post exercise, but dwindle down (hence the high ventilation rate to convert lactate back to pyruvate) with increasing post exercise time - so, with that being said, the lactate levels are elevated initially, but the levels are diminishing as time goes on (answer #2 - decreasing). it is not without noting that lactate levels take a good amount of time to return to normal post exercise.

 

[Lecter]

not sure if this question is meant to be answered from the information given (application based), but i have an extensive exercise physiology background and i know for a fact that blood lactate levels are elevated for at least 9 min post exericse. sure, the levels drop after the first minute post exercise, but compared to resting levels, they are elevated. so baiscally...

lactate levels start off high post exercise, but dwindle down (hence the high ventilation rate to convert lactate back to pyruvate) with increasing post exercise time - so, with that being said, the lactate levels are elevated initially, but the levels are diminishing as time goes on (answer #2 - decreasing). it is not without noting that lactate levels take a good amount of time to return to normal post exercise.

Well initially lactate concentration increases after exercise and peaks at about 5-6 minutes post-exercise. Then it begins to decrease. This is why exercise research studies use a lactate protocol where the blood sample is taken 5 minutes post-exercise- when lactate concentration is greatest.

That is a pretty crappy question in my opinion. The best answer is probably 2.

 

[bigstix808]

Well initially lactate concentration increases after exercise and peaks at about 5-6 minutes post-exercise. Then it begins to decrease. This is why exercise research studies use a lactate protocol where the blood sample is taken 5 minutes post-exercise- when lactate concentration is greatest.

That is a pretty crappy question in my opinion. The best answer is probably 2.

hence why i said AT LEAST 9 minutes post exercise pertaining to the upper-interval of elevated lactate levels...and yes, i'm very familiar with lactate thresholds, etc...