The headline is broadly defensible, but the qualifications matter. Effect sizes vary by population, the strongest claims rest on shorter trials, and credible voices push back on how it's typically framed.
this is a fast twitch muscle fiber and they use glucose so this is when you're like a high exercise intensities climbing or running at a high intensity or swimming or whatever the activity you do you need glucose because uh glucose is it's as you said very well it yields less ATP but it does it much faster right than than than the diesel gasoline which is the the the fat so but when you use glucose uh you're always going to produce pyate
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Bookmarking — the dossier-vs-overview split is the right call. Most of the time I want overview; sometimes I want receipts.
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when your demand for atp gets high enough and quick enough you're going to basically take glucose and when you turn it into pyruvate rather than take the efficient path of shuttling pyruvate into acetyl coa through the krebs cycle where you can generate lots of atp requiring oxygen you're going to take a quicker path that's less efficient but doesn't require the same cellular oxygen and you'll turn pyruvate into lactate you won't get nearly as much atp and you'll also tend to generate a lot of lactate which tends to gravitate with hydrogen ions which tends to kind of poison the muscle a little bit and that's you know why it becomes rate limiting in terms of how long you can sustain that level of output