The libraryStrength

RPE / RIR autoregulation

At RPE 8 you've got about 2 good reps left, and an experienced lifter calls that honestly.

Who it's forAny man who's trained long enough to know what one more rep feels like.

Emergency: call 911.

I am not a doctor. This is not medical advice. This is self-education. Talk to a physician who has your history before you change anything.