this post was submitted on 05 Oct 2023
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Yes. The key difference is the near 100% exertion. If the muscles are used to they're maximum on a regular basis, the body will consider them necessary for survival.
If you suddenly dropped the weight by 20%, so that you exert those muscles less, you would expect them to gradually weaken by a similar margin over time; eventually, to the point that lifting the 80% weight would require near 100% exertion.