Talk:Lactate threshold

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Untitled

In the section "Aerobic Threshold", the sentence "The anaerobic energy system does not utilize oxygen to create Adenosine triphosphate (ATP)and uses glycogen/glucose." should perhaps read "The anaerobic energy system does not utilize oxygen to create Adenosine triphosphate (ATP)and can only use glycogen/glucose" because both the Aerobic and Anaerobic methods of generating ATP can consume glucose, but anything that uses lipids, or keytones example is aerobic. Without this refinement the article/statement is confusing.

The article does not mention the citric acid (Krebs) cycle that is the dominant and best understood aerobic pathway for generating ATP from oxygen and glucose. The citric acid cycle also produces considerably more ATP (something like 32 or 36 ATP????) per glucose molecule rather than the lactic acid pathway (something like 2 or 3 ???). This explains why it is so desirable for many sports to increase this threshold because of it's impact on how efficiently the body's limited glycogen store is used. Someone willing to do some homework could clean up this article.

I also thought there was an intermediate level where local muscles are anaerobic but the liver is able to keep up and rebuild the lactic acid into sugar and adenosine back into ATP. This is done at a considerable energy cost but it is easier for the body to keep the liver aerobic rather than the entire body. If this is true, I'm note sure if it is just under, just over, or in-between the levels noted in this article.

NIRS & Lactate

NIRS does not measure lactate in real time as stated in the article, it measures muscle oxygenation/saturation and from this the Lactate Threshold can be predicted. — Preceding unsigned comment added by 114.23.236.243 (talk) 00:42, 17 October 2016 (UTC)[reply]

I fixed this by just deleting the two sentences that mention this. The source that was supposed to support those claims did not support them. 140.226.13.204 (talk) 18:46, 7 August 2019 (UTC)[reply]

Careful proofreading required

I fixed a few things in a quick effort to at least mention LT1 and LT2 (without cite, in hopes that the next editor will clean this up while reconciling better with the previous paragraphs, which are entirely outside my wheelhouse).

I fixed some elementary semantic errors on the way through, e.g. 1–2 mM/L is an equilibrium blood lactate level in the rest condition, not a production rate. I had to an clarification needed to an unanchored use of "increased" (by who or what?). Usage of mM/L is all over the place (not entirely resolved). Sometimes more fully spelled out, randomly linked to the unit page in a late usage.

These are collectively signs that a thorough proofread is warranted by a qualified editor. — MaxEnt 16:34, 4 May 2023 (UTC)[reply]

2nd paragraph

The second paragraph is seemingly self-contradictory, probably because it introduces a related but different concept in apparent non-sequitur, and then uses a confusing series of pronouns attempting to answer a question that wasn't asked Ksd275 (talk) 06:08, 25 November 2024 (UTC)[reply]