If you refer to this mysterious process during which the Liver converts Lactate back into glycogen, you're absolutely correct. This process in fact kind of slows you down. It ain't aimed at helping the working muscles, but rather to make absolutely 110% positively sure that your brain will never lack blood glucose. So this glyco is likely going to be converted back to glucose where it will travel the blood stream up to your brain.
THAT said though, aerobic contribution to lactate metabolism isn't limited to this mysterious phenomenon. Not at all. Quite simple Q. Lactic Acid becomes Pyruvate which can then reenter the mitochondria for being oxidized. I think that this process is often referred to as being Cellular Respiration. This way, Lactate is definitely considered as a fuel, a powerful one. And it helps boosting your swim endurance pace velocity as well as delaying severe acidosis (resulting from sprinting a full 100 for instance).
Sorry for not addressing so much of your comment, but fatigue isn't something I am interested in discussing right now, and I think muscle fiber types and how enzymes are utilized are too low level for a training discussion.
I was talking about conversion of lactate to glucose in the liver, the Cori cycle. I was trying to keep things high level but provide enough detail to justify or refute my earlier statement on the need to only train anaerobically.
What other process exists to utilize lactate? I do not believe a muscle cell can utilize lactate directly for energy and it is just a waste product to a muscle cell.
If you refer to this mysterious process during which the Liver converts Lactate back into glycogen, you're absolutely correct. This process in fact kind of slows you down. It ain't aimed at helping the working muscles, but rather to make absolutely 110% positively sure that your brain will never lack blood glucose. So this glyco is likely going to be converted back to glucose where it will travel the blood stream up to your brain.
THAT said though, aerobic contribution to lactate metabolism isn't limited to this mysterious phenomenon. Not at all. Quite simple Q. Lactic Acid becomes Pyruvate which can then reenter the mitochondria for being oxidized. I think that this process is often referred to as being Cellular Respiration. This way, Lactate is definitely considered as a fuel, a powerful one. And it helps boosting your swim endurance pace velocity as well as delaying severe acidosis (resulting from sprinting a full 100 for instance).
Sorry for not addressing so much of your comment, but fatigue isn't something I am interested in discussing right now, and I think muscle fiber types and how enzymes are utilized are too low level for a training discussion.
I was talking about conversion of lactate to glucose in the liver, the Cori cycle. I was trying to keep things high level but provide enough detail to justify or refute my earlier statement on the need to only train anaerobically.
What other process exists to utilize lactate? I do not believe a muscle cell can utilize lactate directly for energy and it is just a waste product to a muscle cell.
