- Oct 30, 2026
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Any program built on percentages of a one rep max inherits a flaw that nobody programs around. The one rep max is not a fixed property of your body. It moves with sleep, with accumulated fatigue, with how much you ate, with how recently you trained that pattern. A program that prescribes seventy five percent is prescribing seventy five percent of a value that was measured on one specific day under one specific set of conditions.
Autoregulation exists as a response to that problem. Rating effort and adjusting load session by session keeps the actual stimulus closer to the intended one. The tradeoff is that it depends on the lifter's ability to judge proximity to failure, and that skill is unevenly distributed and improves slowly.
Neither approach is wrong, and the argument between them is usually conducted by people who have not tested the alternative. What is worth knowing is that fixed percentages produce variable actual stimulus, and autoregulation produces variable load with more consistent stimulus. Which one suits you depends on how good your self assessment is, and almost nobody has measured that either.
Autoregulation exists as a response to that problem. Rating effort and adjusting load session by session keeps the actual stimulus closer to the intended one. The tradeoff is that it depends on the lifter's ability to judge proximity to failure, and that skill is unevenly distributed and improves slowly.
Neither approach is wrong, and the argument between them is usually conducted by people who have not tested the alternative. What is worth knowing is that fixed percentages produce variable actual stimulus, and autoregulation produces variable load with more consistent stimulus. Which one suits you depends on how good your self assessment is, and almost nobody has measured that either.